Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent

This European Standard specifies requirements, test methods, evaluation of conformity and marking for prefabricated secondary treatment units used for the treatment of effluent from septic tanks according to EN 12566-1 or EN 12566-4 in small wastewater treatment systems for up to 50 PT.
It applies to the prefabricated secondary treatment unit, where all its components are factory or site-assembled and placed on the market as a kit by one manufacturer.
These prefabricated secondary treatment units are watertight without any direct infiltration into the ground.
The prefabricated secondary treatment unit consists of one or more tanks made of concrete, steel, unplasticized polyvinylchloride (PVC-U), polyethylene (PE), glass reinforced polyester (GRP-UP) or polypropylene (PP). Other components specified by the manufacturer, such as pipes, pumps and filter material may be used in the unit.
This standard establishes the performance of the prefabricated secondary treatment units needed to verify their suitability for the end use conditions for which the test methods are specified.
This standard applies for the secondary treatment units for use on the top of the ground (outside the building) or buried in the ground where no vehicle loads are applied to the unit.
Retrofit kits (see definition in 3.7) are not covered by this standard.

Kleinkläranlagen für bis zu 50 EW - Teil 6: Vorgefertigte Anlagen für die weitergehende Behandlung des aus Faulgruben ablaufenden Abwassers

Diese Europäische Norm legt Anforderungen, Prüfverfahren, die Kennzeichnung und die Konformitätsbewertung für vorgefertigte Anlagen der zweiten Behandlungsstufe für die Behandlung des aus Faulgruben ablaufendem Abwassers nach EN 12566 1 oder EN 12566 4 in Kleinkläranlagen für bis zu 50 EW fest.
Sie gilt für vorgefertigte Anlagen der zweiten Behandlungsstufe, bei denen sämtliche Komponenten im Werk gefertigt sind oder vor Ort montiert werden, und die durch den Hersteller als Bausatz auf den Markt gebracht werden.
Diese vorgefertigten Anlagen der zweiten Behandlungsstufe sind wasserdicht, ohne dass eine direkte Infiltration in den Boden erfolgt.
Eine vorgefertigte Anlage der zweiten Behandlungsstufe besteht aus einem Behälter oder mehreren Behältern aus Beton, Stahl, weichmacherfreiem Polyvinylchlorid (PVC U), Polyethylen (PE), glasfaserverstärktem Kunststoff (GFK) oder Polypropylen (PP) ab. Weitere, durch den Hersteller spezifizierte Baugruppen, wie Rohrleitungen, Pumpen und Filtermaterial dürfen in der Anlage verwendet werden.
Diese Norm legt das Leistungsverhalten von vorgefertigten Anlagen der zweiten Behandlungsstufe fest, das zur Verifizierung ihrer Eignung für die Bedingungen des Verwendungszwecks erforderlich ist, und für den die Prüfverfahren festgelegt sind.
Diese Norm gilt für Anlagen der zweiten Behandlungsstufe, die auf der Bodenoberfläche verwendet werden (außerhalb eines Gebäudes) oder die so im Boden eingebaut sind, dass keine Fahrzeuglasten auf die Anlage aufgebracht werden.
Nachrüstsätze (siehe Definition in 3.7) werden in dieser Norm nicht behandelt.

Petites installations de traitement des eaux usées jusqu'à 50 PTE - Partie 6: Unités préfabriquées de traitement des effluents de fosses septiques

La présente Norme européenne spécifie les exigences, les méthodes d'essai, l'évaluation de la conformité et le marquage d'unités préfabriquées de traitement secondaire utilisées pour le traitement des effluents s'écoulant de fosses septiques conformément à l'EN 12566-1 ou à l'EN 12566-4 dans les petites installations de traitement des eaux usées jusqu’à 50 PTE.
Elle s'applique à l'unité préfabriquée de traitement secondaire, lorsque tous ses composants sont assemblés en usine ou sur site et mis sur le marché sous forme de kit par un fabricant.
Ces unités préfabriquées de traitement secondaire sont étanches sans aucune infiltration directe dans le sol.
L'unité préfabriquée de traitement secondaire est constituée d'un ou plusieurs réservoirs en béton, en acier, en polychlorure de vinyle non plastifié (PVC-U), en polyéthylène (PE), polyester renforcé de verre (GRP-UP) ou en polypropylène (PP). D'autres composants spécifiés par le fabricant, tels que des tuyaux, des pompes et du matériel de filtration peuvent être utilisés dans l'unité.
La présente norme établit les performances des unités préfabriquées de traitement secondaire nécessaires pour vérifier leur aptitude aux conditions d'usage final pour lesquelles les méthodes d'essai sont spécifiées.
La présente norme est applicable aux unités de traitement secondaires destinées à un usage non enterré (à l’extérieur du bâtiment), ou enterrées à un emplacement où l'unité n’est pas soumise à des charges dues aux véhicules.
Les kits de remise à niveau (voir la définition 3.7) ne relèvent pas de la présente norme.

Male čistilne naprave do 50 PE - 6. del: Predizdelane enote za obdelavo grezničnih odplak

Ta evropski standard določa zahteve, preskusne metode, vrednotenje skladnosti in označevanje predizdelanih sekundarnih enot za obdelavo, ki se uporabljajo pri obdelavi grezničnih odplak v skladu s standardom EN 12566-1 ali EN 12566-4 v malih čistilnih napravah do 50 PE. Uporablja se za predizdelane sekundarne enote za uporabo, ki imajo vse dele pakirane ali izdelane za sestavljanje na mestu in so na trgu na voljo kot kompleti enega proizvajalca. Predizdelana sekundarna enota za obdelavo je sestavljena iz enega ali več rezervoarjev, ki so izdelani iz betona, jekla, neplastificiranega polivinil klorida (PVC-U), polietilena (PE), s steklom ojačanega poliestra (GRP-UP), polipropilena (PP), polidiciklopentadiena (PDCPD), ali iz posode, ki je izdelana iz elastičnih trakov (PEHD, PP, PVC, EPDM). Drugi deli, ki jih navede proizvajalec (npr. cevi, črpalke in material filtra), so obravnavani kot del enote. Ta standard določa zmogljivost predizdelanih sekundarnih enot za obdelavo, ki je potrebna za dokazovanje njihove primernosti za končno uporabo v pogojih, za katere so določene preskusne metode. Ta standard se uporablja za sekundarne enote za uporabo, ki so pakirane in/ali izdelane za sestavljanje na mestu ter se uporabljajo nad zemljo (pred stavbo) ali so zakopane pod zemljo, kjer ni vozil, ki obremenjujejo enoto.

General Information

Status
Withdrawn
Publication Date
17-Apr-2013
Withdrawal Date
27-Feb-2017
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
10-Jan-2017
Due Date
02-Feb-2017
Completion Date
28-Feb-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RGSODNKleinkläranlagen für bis zu 50 EW - Teil 6: Vorgefertigte Anlagen für die weitergehende Behandlung des aus Faulgruben ablaufenden AbwassersPetites installations de traitement des eaux usées jusqu'à 50 PTE - Partie 6: Unités préfabriquées de traitement des effluents de fosses septiquesSmall wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent13.060.30Odpadna vodaSewage waterICS:Ta slovenski standard je istoveten z:EN 12566-6:2013SIST EN 12566-6:2013en,fr,de01-junij-2013SIST EN 12566-6:2013SLOVENSKI

STANDARD
SIST EN 12566-6:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12566-6
February 2013 ICS 13.060.30 English Version

Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent

Petites installations de traitement des eaux usées jusqu'à 50 PTE - Partie 6: Unités préfabriquées de traitement des effluents de fosses septiques

Kleinkläranlagen für bis zu 50 EW - Teil 6: Vorgefertigte Anlagen für die weitergehende Behandlung des aus Faulgruben ablaufenden Abwassers This European Standard was approved by CEN on 7 December 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12566-6:2013: ESIST EN 12566-6:2013

EN 12566-6:2013 (E) 2 Contents Page Foreword ....................................................................................................................................................... 4 1 Scope ................................................................................................................................................ 6 2 Normative references ....................................................................................................................... 6 3 Terms and definitions ...................................................................................................................... 7 4 Symbols and abbreviations ............................................................................................................. 8 5 Nominal designation ........................................................................................................................ 8 6 Requirements ................................................................................................................................... 8 6.1 Design ............................................................................................................................................... 8 6.1.1 General ............................................................................................................................................. 8 6.1.2 Overall dimensions .......................................................................................................................... 8 6.1.3 Inlets, outlets, internal pipework and connections ......................................................................... 9 6.1.4 Access .............................................................................................................................................. 9 6.2 Load bearing capacity ...................................................................................................................... 9 6.2.1 General ............................................................................................................................................. 9 6.2.2 Load bearing capacity determined by calculation ........................................................................ 10 6.2.3 Load bearing capacity determined by testing .............................................................................. 10 6.3 Secondary treatment efficiency ..................................................................................................... 11 6.3.1 General ........................................................................................................................................... 11 6.3.2 Secondary treatment efficiency ratio ............................................................................................ 11 6.3.3 Micro-organism reduction ............................................................................................................. 12 6.4 Watertightness ............................................................................................................................... 12 6.5 Power consumption ....................................................................................................................... 12 6.6 Durability ........................................................................................................................................ 13 6.6.1 General ........................................................................................................................................... 13 6.6.2 Concrete, steel, PVC-U, PE, GRP ................................................................................................... 13 6.6.3 PDCPD ............................................................................................................................................ 13 6.6.4 Flexible sheets ............................................................................................................................... 13 6.7 Reaction to fire ............................................................................................................................... 14 6.7.1 General ........................................................................................................................................... 14 6.7.2 Units classified as Class A1 without the need for testing ............................................................ 14 6.7.3 Units classified according to the test results ............................................................................... 14 6.8 Dangerous substances .................................................................................................................. 15 7 Evaluation of conformity................................................................................................................ 15 7.1 General ........................................................................................................................................... 15 7.2 Initial type testing – Type testing .................................................................................................. 15 7.2.1 General ........................................................................................................................................... 15 7.2.2 Sampling, testing and compliance criteria.................................................................................... 17 7.2.3 Test reports .................................................................................................................................... 17 7.3 Factory production control (FPC) .................................................................................................. 17 7.3.1 General ........................................................................................................................................... 17 7.3.2 Requirements ................................................................................................................................. 17 7.3.3 Procedure for modifications .......................................................................................................... 19 7.3.4 Initial inspection of factory and of FPC ......................................................................................... 20 7.3.5 Continuous surveillance of FPC .................................................................................................... 20 8 Marking ........................................................................................................................................... 20 8.1 Marking of the unit ......................................................................................................................... 20 8.2 Technical information accompanying the unit ............................................................................. 20 9 Installation instructions ................................................................................................................. 21 SIST EN 12566-6:2013

EN 12566-6:2013 (E) 3 10 Operation and maintenance instructions ...................................................................................... 21 Annex A (normative)

Secondary treatment efficiency test procedure ...................................................... 23 A.1 Selection of the unit and its preliminary evaluation ..................................................................... 23 A.1.1 General ........................................................................................................................................... 23 A.1.2 Installation and commissioning..................................................................................................... 23 A.1.3 Operation and maintenance procedures during testing ............................................................... 23 A.1.4 Data to be monitored ...................................................................................................................... 23 A.2 Test procedure ............................................................................................................................... 24 A.2.1 Time for establishment .................................................................................................................. 24 A.2.2 Influent characteristics .................................................................................................................. 24 A.2.3 Daily flow pattern for testing.......................................................................................................... 24 A.2.4 Test method .................................................................................................................................... 24 A.2.5 Influent and effluent sampling ....................................................................................................... 26 A.3 Sample analysis ............................................................................................................................. 26 A.4 Test report ...................................................................................................................................... 26 Annex B (normative)

Presentation of the micro-organisms test results .................................................. 28 Annex C (informative)

Analysis method ..................................................................................................... 29 Annex ZA (informative)

Clauses of this European Standard addressing the provisions of the EU Construction Products Directive ................................................................................................... 30 ZA.1 Scope and relevant characteristics ............................................................................................... 30 ZA.2 Procedure of attestation of conformity of prefabricated secondary treatment units..................... 32 ZA.2.1 Systems of attestation of conformity ............................................................................................ 32 ZA.2.2 EC certificate of conformity and EC declaration of conformity.................................................... 34 ZA.3 CE marking and labelling ............................................................................................................... 35 Bibliography ................................................................................................................................................ 38

SIST EN 12566-6:2013

EN 12566-6:2013 (E) 4 Foreword This document (EN 12566-6:2013) has been prepared by Technical Committee CEN/TC 165 “Wastewater engineering”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2013, and conflicting national standards shall be withdrawn at the latest by August 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The standard series EN 12566 "Small wastewater treatment systems for up to 50 PT" contains the following parts (see Figure 1):  Part 1: Prefabricated septic tanks  Part 3: Packaged and/or site assembled domestic wastewater treatment plants  Part 4: Septic tanks assembled in situ from prefabricated kits  Part 6: Prefabricated treatment units for septic tank effluent (the present document)  Part 7: Prefabricated tertiary treatment units (in preparation) For filtration and infiltration systems, CEN/TC 165 decided to publish the following CEN Technical Reports, which are considered as Code of Practices and do not specify treatment requirements:  CEN/TR 12566-2, Small wastewater treatment systems for up to 50 PT — Part 2: Soil infiltration systems  CEN/TR 12566-5, Small wastewater treatment systems for up to 50 PT — Part 5: Pre-treated effluent filtration systems According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12566-6:2013

EN 12566-6:2013 (E) 5

Key A raw domestic wastewater 1 prefabricated septic tank B septic tank effluent 2 soil infiltration system C treated infiltrated effluent 3 packaged and/or site assembled domestic wastewater treatment plant D treated wastewater 4 septic tank assembled in situ from prefabricated kit E tertiary treated wastewater 5 pre-treated effluent filtration system

6 prefabricated treatment unit used for septic tank effluent
7 prefabricated tertiary treatment unit

Figure 1 — Scheme related to the arrangement of the parts of EN 12566 or CEN/TR 12566 NOTE National regulations may specify different arrangements between the products described in the series of EN 12566 and CEN/TR 12566. SIST EN 12566-6:2013

EN 12566-6:2013 (E) 6 1 Scope This European Standard specifies requirements, test methods, evaluation of conformity and marking for prefabricated secondary treatment units used for the treatment of effluent from septic tanks according to EN 12566-1 or EN 12566-4 in small wastewater treatment systems for up to 50 PT. NOTE Equivalent septic effluent may come from existing septic tanks. It applies to the prefabricated secondary treatment unit, where all its components are packaged or site-assembled and placed on the market as a kit by one manufacturer. The prefabricated secondary treatment unit consists of one or more tanks made of concrete, steel, unplasticised polyvinylchloride (PVC-U), polyethylene (PE), glass reinforced polyester (GRP-UP), polypropylene (PP), polydicyclopentadiene (PDCPD) or container made of flexible sheets (PEHD, PP, PVC, EPDM). Other components specified by the manufacturer, such as pipes, pumps and filter material will be considered as part of the unit. This standard establishes the performance of the prefabricated secondary treatment units needed to verify their suitability for the end use conditions for which the test methods are specified. This standard applies for the packaged and/or site assembled secondary treatment units for use on the top of the ground (outside the building) or buried in the ground where no vehicle loads are applied to the unit. This standard does not cover:  non watertight secondary treatment units with direct infiltration into the ground;  retrofit kits (see definition in 3.7). 2 Normative references The following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1085:2007, Wastewater treatment — Vocabulary EN 12566-1, Small wastewater treatment systems for up to 50 PT — Part 1: Prefabricated septic tanks EN 12566-3:2005+A1:2009, Small wastewater treatment systems for up to 50 PT — Part 3: Packaged and/or site assembled domestic wastewater treatment plants EN 12566-4, Small wastewater treatment systems for up to 50 PT — Part 4: Septic tanks assembled in situ from prefabricated kits EN 12311-2, Flexible sheets for waterproofing — Determination of tensile properties — Part 2: Plastic and rubber sheets for roof waterproofing EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 14150, Geosynthetic barriers — Determination of permeability to liquids EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles (ISO 527-1) EN ISO 2555, Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity by the Brookfield Test method (ISO 2555) SIST EN 12566-6:2013

EN 12566-6:2013 (E) 7 EN ISO 7899-1, Water quality — Detection and enumeration of intestinal enterococci in surface and wastewater — Part 1: Miniaturized method (Most Probable Number) by inoculation in liquid medium (ISO 7899-1) EN ISO 7899-2, Water quality — Detection and enumeration of intestinal enterococci — Part 2: Membrane filtration method (ISO 7899-2) EN ISO 9308-1, Water quality — Detection and enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method (ISO 9308-1) EN ISO 9308-3, Water quality — Detection and enumeration of Escherichia coli and coliform bacteria in surface and wastewater — Part 3: Miniaturized method (Most Probable Number) by inoculation in liquid medium (ISO 9308-3) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12566-3:2005+A1:2009 and EN 1085:2007 and the following apply. 3.1 packaged secondary treatment unit prefabricated factory-built unit which treats septic tank effluent to a declared quality 3.2 site assembled secondary treatment unit unit supplied by one manufacturer composed of prefabricated components, assembled on site, which treats septic tank effluent to a declared quality 3.3 open unit prefabricated unit where there is no cover 3.4 nominal designation appropriate values for declared organic daily load expressed in kilogram of BOD5 (or BOD7) per day and for declared hydraulic daily flow expressed in cubic metres of septic tank effluent per day (QN) 3.5 unit family group of units produced by one manufacturer for which the test results for one or more characteristics from any one unit within the family are valid for all other units within this family 3.6 waste water treatment system combination of units (e.g. septic tank) and/or products (e.g. pipes, pumps) required for the construction of waste water treatment plant according to Figure 1 3.7 retrofit kit set of components that are provided by a single manufacturer for installation within an existing septic tank 3.8 flexible sheet flexible impermeable liner SIST EN 12566-6:2013

EN 12566-6:2013 (E) 8 4 Symbols and abbreviations The following symbols and abbreviations are used in this standard: BOD5 (or BOD7) Biochemical oxygen demand at 5 d or 7 d COD Chemical oxygen demand KN Kjeldahl nitrogen NH4-N Ammonium nitrogen SS Suspended solids TOC Total organic carbon 5 Nominal designation Each prefabricated secondary treatment unit shall be designated according to  the nominal organic daily load of septic tank effluent, expressed in kg of BOD5 (or BOD7) per day, and  the nominal hydraulic daily flow QN, expressed in cubic metres of septic tank effluent per day, and declared with appropriate values. NOTE Selection of nominal designated product. Depending on the type of end use condition of the prefabricated secondary treatment unit (i.e. domestic installations, guest houses, businesses, etc.) and the regulations in the place of intended use, one or more of the following design criteria may need to be taken into consideration to select the nominal designation of the unit into the product family:  sizing of the septic tank (according to EN 12566-1 or EN 12566-4) in relation with the total population loading;  declared value of SS settlement (grams of beads). 6 Requirements 6.1 Design 6.1.1 General Prefabricated secondary treatment units for septic tank effluent shall be designed to be structurally stable with the expected loads for the intended use. In addition, the units shall be durable, watertight and corrosion resistant. Scaling rules, which ensure that the test results for one or more characteristics from any one unit within the family are valid for all other units within this family, shall be defined. Where applicable, units shall be provided with an alarm to indicate operational failure (e.g. electrical, mechanical or hydraulic failure). The type of failure detected by the alarm shall be indicated. Design of the unit should take into consideration appropriate safety requirements for construction, installation, operation and maintenance. 6.1.2 Overall dimensions The overall dimensions of the prefabricated secondary treatment unit (i.e. height, width, length, diameters, etc.) shall be measured and declared together with a tolerance. Assessment of overall dimensions shall be done by measurement with accuracy of ± 0,5 % of the dimension. SIST EN 12566-6:2013

EN 12566-6:2013 (E) 9 6.1.3 Inlets, outlets, internal pipework and connections The nominal diameters for inlet and outlet pipework of the prefabricated secondary treatment unit shall be declared. The hydraulic design of the unit, the internal pipework and the connections shall ensure that no back-flows, blockage or surcharging occur during normal operation of the unit. Inlet and outlet pipes shall be compatible with standardized pipe systems. Assessment of inlets, outlets, internal pipework and connections shall be done by measurement with accuracy of ± 0,5 % of the dimension. 6.1.4 Access The prefabricated secondary treatment unit shall be designed to restrict unauthorised access (e.g. locking mechanism). The design of the unit shall provide access to allow routine maintenance sampling, removal of sludge (where applicable), cleaning and maintenance. An opening with a dimension (i.e. width for rectangular section or diameter for circular section) of a minimum 400 mm shall be required. For an open unit, access is not required. NOTE 1 For installation purposes of open units, there may be local regulations for maintenance access.

NOTE 2 The requirements to provide facility for the access of a person into the prefabricated secondary treatment unit may depend on applicable regulations, valid in the member state for the intended end use conditions. For example, the minimum dimension of the opening for the access of a person in EN 476 is 600 mm. Extension shafts, where applicable, and access covers of the prefabricated secondary treatment unit shall be designed to be fit for purpose. The access dimensions shall be declared. Assessment of access dimension shall be carried out by a measurement with accuracy of 0,5 % of the dimension. 6.2 Load bearing capacity 6.2.1 General For units not including a tank, load bearing capacity assessment is not required. Test methods and values for mechanical characteristics of the materials of the tank, used for calculation of the load bearing capacity of the tank, shall be in accordance with EN 12566-3:2005+A1:2009, Annex C. The prefabricated secondary treatment units shall be able to withstand the loads resulting from handling, installation and use including desludging and maintenance, for its design life. For buried installation, the load bearing capacity of the prefabricated secondary treatment unit (i.e. of the tank of this unit) shall be established:  either by calculation with the knowledge of basic data for material and loads (see 6.2.2);

or  by test directly on the tank component of the unit (see 6.2.3). Where the prefabricated secondary treatment unit includes a watertight extension shaft, and/or the unit is installed in a water table, the relevant loads at the maximum installed depth of the unit shall be taken into account and appropriate tests or calculations made to prove the load bearing capacity of the unit. SIST EN 12566-6:2013

EN 12566-6:2013 (E) 10 The load bearing capacity is declared as:  maximum allowed height of backfill (m);  possibility to install the unit in water table or not, expressed as WET or DRY, respectively. The load bearing capacity of prefabricated secondary treatment units that are intended to be used only in non- buried conditions shall be assessed only by calculation. For a unit with the container made of flexible sheets, the pit test only shall be used. 6.2.2 Load bearing capacity determined by calculation 6.2.2.1 General One of the following two methods may apply: a) Method 1: Indirect method usable for all materials by declaring the following parameters: 1) Geometrical data of the unit: e.g. wall thickness, distance of ribs, shape,

2) Properties of the materials and components: All parameters given in chapter durability (6.6). The manufacturer shall provide in the installation instructions the height of backfill and the possibility to install the unit in a water table or not (WET or DRY), respectively. NOTE If required, the manufacturer may provide the calculation results according to the calculation method valid in the place of use. b) Method 2: Directly declaring the performance using the applicable Eurocode: 1) Eurocode 2 for concrete (where applicable), 2) Eurocode 3 for steel (where applicable). The manufacturer shall provide the calculation results according to the relevant Eurocode in terms of height of backfill and possibility to install the unit in a water table or not (WET or DRY), respectively. 6.2.2.2 Backfill loads Calculation of backfill loads shall be carried out according to EN 12566-3:2005+A1:2009, 6.2.1.2. 6.2.2.3 Hydrostatic loads A vertical and a horizontal component of the hydrostatic loads shall be calculated according to EN 12566-3:2005+A1:2009, 6.2.1.3. 6.2.2.4 Pedestrian loads For pedestrian loads, a value of 2,5 kN/m2 shall be considered in calculation only when the height of the backfill (h) is less than or equal to 1 m. Over 1 m, the pedestrian loads do not need to be taken into account for calculation, as it is assumed to be negligible against other loads. 6.2.3 Load bearing capacity determined by testing The load bearing capacity of the prefabricated secondary treatment unit shall be established by the crushing resistance or maximum load deformation according to EN 12566-3:2005+A1:2009, Annex C. SIST EN 12566-6:2013

EN 12566-6:2013 (E) 11 The test results shall ensure that the load bearing capacity under the declared load is ensured.  Crushing resistance test (EN 12566-3:2005+A1:2009, C.2 and C.3): the declared load shall be lower or equal to the failure load divided by a factor of minimum 1,6.  Vacuum test for GPR unit (EN 12566-3:2005+A1:2009, C.5): the unit shall withstand the external pressure for the declared load multiplied by a factor of minimum 1,5. NOTE In the Formula (C.2) of EN 12566-3:2005+A1:2009, L is the load in kPa (the greater of the vertical or horizontal load due to backfill and hydrostatic load).  Pit test (EN 12566-3:2005+A1:2009, C.6): the unit shall be installed according to the manufacturer indication for the maximum declared load. For open prefabricated secondary treatment unit, only the pit test shall be used (see example in Figure 2). For the load bearing capacity of a unit made of PDCPD, the

...

SLOVENSKI SIST EN 12566-6
STANDARD
junij 2013
Male čistilne naprave do 50 PE – 6. del: Predizdelane enote za obdelavo
grezničnih odplak
Small wastewater treatment systems for up to 50 PT – Part 6: Prefabricated
treatment units for septic tank effluent
Petites installations de traitement des eaux usées jusqu'à 50 PTE –
Partie 6: Unités préfabriquées de traitement des effluents de fosses septiques
Kleinkläranlagen für bis zu 50 EW – Teil 6: Vorgefertigte Anlagen für die
weitergehende Behandlung des aus Faulgruben ablaufenden Abwassers
Referenčna oznaka
ICS 13.060.30 SIST EN 12566-6:2013 (sl)
Nadaljevanje na straneh II in III ter od 1 do 37

© 2016-05. Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12566-6 : 2013
NACIONALNI UVOD

Standard SIST EN 12566-6 (sl), Male čistilne naprave do 50 PE – 6. del: Predizdelane enote za

obdelavo grezničnih odplak, 2013, ima status slovenskega standarda in je istoveten evropskemu

standardu EN 12566-6 (en, de, fr), Small wastewater treatment systems for up to 50 PT – Part 6:

Prefabricated treatment units for septic tank effluent, 2013.
NACIONALNI PREDGOVOR

Evropski standard EN 12566-6:2013 je pripravil tehnični odbor Evropskega komiteja za standardizacijo

CEN/TC 165 Odvajanje in čiščenje odpadne vode. Slovenski standard SIST EN 12566-6:2013 je prevod

evropskega standarda EN 12566-6:2013. V primeru spora glede besedila slovenskega prevoda v tem

standardu je odločilen izvirni evropski standard v enem izmed treh uradnih jezikov CEN. Slovensko

izdajo standarda je potrdil Strokovni svet SIST za splošno področje.

Odločitev za izdajo tega standarda je oktobra 2012 sprejel Strokovni svet SIST za splošno področje.

ZVEZA S STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi

standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:

SIST EN 1085:2007 Čiščenje odpadne vode – Slovar
SIST EN 12566-1 Male čistilne naprave do 50 PE – 1. del: Predizdelane greznice

SIST EN 12566-3:2005+A1:2013 Male čistilne naprave do 50 PE – 3. del: Predizdelane in/ali na mestu

postavitve sestavljene čistilne naprave za gospodinjske odplake

SIST EN 12566-4 Male čistilne naprave do 50 PE – 4. del: Montažne greznice, sestavljene na

mestu vgradnje

SIST EN 12311-2 Hidroizolacijski trakovi – Ugotavljanje nateznih lastnosti – 2. del: Polimerni in

elastomerni trakovi za tesnjenje streh

SIST EN 13501-1 Požarna klasifikacija gradbenih proizvodov in elementov stavb – 1. del:

Klasifikacija po podatkih iz preskusov odziva na ogenj
SIST EN 14150 Geosintetične ovire – Ugotavljanje prepustnosti za tekočine

SIST EN ISO 527-1 Polimerni materiali – Ugotavljanje nateznih lastnosti – 1. del: Splošna načela

(ISO 527-1)

SIST EN ISO 2555 Polimerni materiali – Tekoče smole, emulzije ali disperzije – Preskusna

metoda za določanje navidezne viskoznosti po Brookfieldu (ISO 2555)

SIST EN ISO 7899-1 Kakovost vode – Ugotavljanje prisotnosti in števila intestinalnih enterokokov v

površinskih in odpadnih vodah – 1. del: Metoda z miniaturizacijo (najbolj
verjetno število) z nasajanjem v tekočem gojišču (ISO 7899-1)

SIST EN ISO 7899-2 Kakovost vode – Ugotavljanje prisotnosti in števila intestinalnih enterokokov –

2. del: Metoda membranske filtracije (ISO 7899-2)

SIST EN ISO 9308-1 Kakovost vode – Ugotavljanje števila Escherichia coli in koliformnih bakterij –

1. del: Metoda membranske filtracije za vode z majhnim številom
spremljajočih bakterij (ISO 9308-1)

SIST EN ISO 9308-3 Kakovost vode – Ugotavljanje prisotnosti in števila Escherichia coli in

koliformnih bakterij v površinski in odpadnih vodah – 3. del: Metoda z
miniaturizacijo (najbolj verjetno število) z nasajanjem v tekočem gojišču (ISO
9308-3)
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SIST EN 12566-6 : 2013
OSNOVA ZA IZDAJO STANDARDA
– privzem standarda EN 12566-6:2013
OPOMBE

– Povsod, kjer se v besedilu standarda uporablja izraz “evropski standard”, v SIST EN 12566-6:2013

to pomeni “slovenski standard”.
– Uvod in nacionalni predgovor nista sestavni del standarda.

– Ta nacionalni dokument je istoveten EN 12566-6:2013 in je objavljen z dovoljenjem

CEN
Upravni center
Avenue Marnix 17
B-1000 Bruselj

This national document is identical with EN 12566-6:2013 and is published with the permission of

CEN
Management Centre
Avenue Marnix 17
B-1000 Brussels
III
---------------------- Page: 3 ----------------------
EVROPSKI STANDARD EN ISO 12566-6
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM februar 2013
ICS 13.060.30
Slovenska izdaja
Male čistilne naprave do 50 PE –
6. del: Predizdelane enote za obdelavo grezničnih odplak

Small wastewater treatment Petites installations de traitement Kleinkläranlagen für bis zu 50

systems for up to 50 PT – des eaux usées jusqu'à 50 PTE – EW – Teil 6: Vorgefertigte

Part 6: Prefabricated treatment Partie 6: Unités préfabriquées de Anlagen für die weitergehende

units for septic tank effluent traitement des effluents de fosses Behandlung des aus Faulgruben

septiques ablaufenden Abwassers
Ta evropski standard je CEN sprejel dne 7. decembra 2012.

Člani CEN morajo izpolnjevati določila notranjih predpisov CEN/CENELEC, s katerimi je predpisano,

da mora biti ta evropski standard brez kakršnihkoli sprememb sprejet kot nacionalni standard. Seznami

najnovejših izdaj teh nacionalnih standardov in njihovi bibliografski podatki so na voljo pri Upravnem

centru ali članih CEN.

Ta evropski standard obstaja v treh uradnih izdajah (angleški, francoski in nemški). Izdaje v drugih

jezikih, ki jih člani CEN na lastno odgovornost prevedejo in izdajo ter prijavijo pri upravnem centru CEN,

veljajo kot uradne izdaje.

Člani CEN so nacionalni organi za standarde Avstrije, Belgije, Bolgarije, Cipra, Češke republike, Danske,

Estonije, Finske, Francije, Grčije, Hrvaške, Irske, Islandije, Italije, Latvije, Litve, Luksemburga,

Madžarske, Malte, Nekdanje jugoslovanske republike Makedonije, Nemčije, Nizozemske, Norveške,

Poljske, Portugalske, Romunije, Slovaške, Slovenije, Španije, Švedske, Švice, Turčije in Združenega

kraljestva.
CEN
Evropski komite za standardizacijo
European Committee for Standardization
Comité Européen de Normalisation
Europäisches Komitee für Normung
Upravni center: Avenue Marnix, 17, B-1050 Brussels

© 2013 CEN. Lastnice avtorskih pravic so vse države članice CEN Ref. oznaka: EN ISO 12566-6:2013 E

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SIST EN 12566-6 : 2013
VSEBINA Stran

Predgovor ................................................................................................................................................ 4

1 Področje uporabe ................................................................................................................................ 6

2 Zveze s standardi ................................................................................................................................ 6

3 Izrazi in definicije ................................................................................................................................. 7

4 Simboli in kratice ................................................................................................................................. 7

5 Nazivna oznaka ................................................................................................................................... 8

6 Zahteve ................................................................................................................................................ 8

6.1 Projektiranje ...................................................................................................................................... 8

6.1.1 Splošno ......................................................................................................................................... 8

6.1.2 Skupne dimenzije ......................................................................................................................... 8

6.1.3 Vtočne in iztočne odprtine, notranji cevovod ter priključki ............................................................. 8

6.1.4 Dostop ........................................................................................................................................... 9

6.2 Obremenitvena zmogljivost ............................................................................................................. 9

6.2.1 Splošno ......................................................................................................................................... 9

6.2.2 Obremenitvena zmogljivost, določena z izračunom .................................................................... 10

6.2.3 Obremenitvena zmogljivost, določena s preskušanjem .............................................................. 10

6.3 Učinkovitost sekundarnega čiščenja .............................................................................................. 11

6.3.1 Splošno ....................................................................................................................................... 11

6.3.2 Stopnja učinkovitosti sekundarnega čiščenja ............................................................................. 11

6.3.3 Zmanjšanje količine prisotnih mikroorganizmov ......................................................................... 12

6.4 Vodotesnost ................................................................................................................................... 12

6.5 Poraba energije ............................................................................................................................. 12

6.6 Trajnost .......................................................................................................................................... 12

6.6.1 Splošno ....................................................................................................................................... 12

6.6.2 Beton, jeklo, PVC-U, PE, GRP .................................................................................................... 13

6.6.3 PDCPD ....................................................................................................................................... 13

6.6.4 Hidroizolacijski trakovi ................................................................................................................ 13

6.7 Odziv na ogenj ............................................................................................................................... 13

6.7.1 Splošno ....................................................................................................................................... 13

6.7.2 Enote, klasificirane kot razred A1, brez potrebe po preskušanju ................................................ 14

6.7.3 Enote, klasificirane v skladu z rezultati preskušanja .................................................................. 14

6.8 Nevarne snovi ................................................................................................................................ 14

7 Vrednotenje skladnosti ...................................................................................................................... 14

7.1 Splošno .......................................................................................................................................... 14

7.2 Začetno tipsko preskušanje – tipsko preskušanje .......................................................................... 15

7.2.1 Splošno ........................................................................................................................................ 15

7.2.2 Vzorčenje, preskušanje in merila skladnosti ............................................................................... 17

7.2.3 Poročila o preskusih ................................................................................................................... 17

7.3 Kontrola proizvodnje v obratu (FPC) .............................................................................................. 17

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SIST EN 12566-6 : 2013

7.3.1 Splošno ....................................................................................................................................... 17

7.3.2 Zahteve ....................................................................................................................................... 17

7.3.3 Postopek za spremembe ............................................................................................................ 19

7.3.4 Začetni pregled obrata in kontrole proizvodnje v obratu ............................................................. 20

7.3.5 Stalni nadzor nad kontrolo proizvodnje v obratu ......................................................................... 20

8 Označevanje ...................................................................................................................................... 20

8.1 Označevanje enote ......................................................................................................................... 20

8.2 Enoti priložene tehnične informacije, .............................................................................................. 20

9 Navodila za vgradnjo ......................................................................................................................... 21

10 Navodila za obratovanje in vzdrževanje .......................................................................................... 21

Dodatek A (normativni): Postopek za preskušanje učinkovitosti sekundarnega čiščenja .................... 22

Dodatek B (normativni): Predstavitev rezultatov preskusa prisotnosti mikroorganizmov ..................... 27

Dodatek C (informativni): Analizna metoda ........................................................................................... 28

Dodatek ZA (informativni): Točke tega evropskega standarda, v katerih so obravnavane

določbe Direktive EU o gradbenih proizvodih .................................................................................... 29

Literatura................................................................................................................................................ 37

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SIST EN 12566-6 : 2013
Predgovor

Ta dokument (EN 12566-6:2013) je pripravil tehnični odbor CEN/TC 165 Odvajanje in čiščenje odpadne

vode, katerega sekretariat vodi DIN.

Ta evropski standard mora dobiti status nacionalnega standarda bodisi z objavo istovetnega besedila

ali z razglasitvijo najpozneje do avgusta 2013, nasprotujoče nacionalne standarde pa je treba

umakniti najpozneje avgusta 2013.

Opozoriti je treba na možnost, da so lahko nekateri elementi tega dokumenta predmet patentnih pravic.

CEN [in/ali CENELEC] ne prevzemata odgovornosti za identifikacijo nekaterih ali vseh takih patentnih

pravic.

Ta dokument je bil pripravljen na podlagi mandata, ki sta ga Evropska komisija in Evropsko

združenje za prosto trgovino podelila CEN, in podpira bistvene zahteve direktive (direktiv) EU.

Za povezavo z direktivo(-ami) Evropske unije glej dodatek ZA, ki je sestavni del tega dokumenta.

Skupina standardov EN 12566 "Male čistilne naprave do 50 PE" vključuje naslednje dele:

– 1. del: Predizdelane greznice

– 3. del: Predizdelane in/ali na mestu postavitve sestavljene čistilne naprave za gospodinjske odplake

– 4. del: Montažne greznice, sestavljene na mestu vgradnje
– 6. del: Predizdelane enote za obdelavo grezničnih odplak (ta standard)
– 7. del: Predizdelane terciarne čistilne enote (v pripravi)

Za sisteme za filtriranje in infiltracijo je CEN/TC 165 objavil naslednji tehnični poročili CEN, ki se

upoštevata kot pravila ravnanja in ne določata zahtev za čiščenje:

– CEN/TR 12566-2, Male čistilne naprave do 50 PE – 2. del: Sistemi za infiltracijo v zemljo

– CEN/TR 12566-5, Male čistilne naprave do 50 PE – 5. del: Filtrirne naprave za predčiščene hišne

odpadne vode

Skladno z notranjimi predpisi CEN/CENELEC morajo ta evropski standard prevzeti nacionalne

organizacije za standarde naslednjih držav: Avstrije, Belgije, Bolgarije, Cipra, Češke republike, Danske,

Estonije, Finske, Francije, Grčije, Hrvaške, Irske, Islandije, Italije, Latvije, Litve, Luksemburga,

Madžarske, Malte, Nekdanje jugoslovanske republike Makedonije, Nemčije, Nizozemske, Norveške,

Poljske, Portugalske, Romunije, Slovaške, Slovenije, Španije, Švedske, Švice, Turčije in Združenega

kraljestva.
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SIST EN 12566-6 : 2013
Legenda:
A surova gospodinjska odpadna voda 1 predizdelana greznica
B odpadna voda iz greznice 2 sistem za infiltracijo v tla
C očiščena infiltrirana odpadna voda 3 predizdelana in/ali na mestu vgradnje
sestavljena čistilna naprava za
D očiščena odpadna voda
gospodinjsko odpadno vodo
E terciarno očiščena odpadna voda
4 montažna greznica, sestavljena na mestu
vgradnje
5 filtrirni sistem za predčiščeno odpadno vodo
6 predizdelana čistilna enota za odpadno vodo iz
greznice
7 predizdelana terciarna čistilna enota
Slika 1: Shema ureditve delov standarda EN 12566

OPOMBA: Nacionalni predpisi lahko določajo drugačne razporeditve med proizvodi, opisanimi v standardih skupine EN

12566.
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SIST EN 12566-6 : 2013
1 Področje uporabe

Ta evropski standard določa zahteve, preskusne metode, vrednotenje skladnosti in označevanje

predizdelanih sekundarnih čistilnih enot, ki se uporabljajo pri čiščenju odpadne vode iz greznice v skladu

z EN 12566-1 ali EN 12566-4 v malih čistilnih napravah do 50 PE.
OPOMBA: Iz obstoječih greznic lahko izhaja enakovredna odpadna voda.

Uporablja se za predizdelane sekundarne čistilne enote, ki imajo vse dele predizdelane ali izdelane za

vgradnjo na mestu in so na trgu na voljo kot kompleti enega proizvajalca.

Predizdelana sekundarna čistilna enota je sestavljena iz enega ali več rezervoarjev, izdelanih iz betona,

jekla, neplastificiranega polivinilklorida (PVC-U), polietilena (PE), s steklom ojačenega poliestra (GRP-

UP), polipropilena (PP), polidiciklopentadiena (PDCPD), ali iz posode, izdelane iz hidroizolacijskih

trakov (PEHD, PP, PVC, EPDM). Drugi deli, ki jih navede proizvajalec (npr. cevi, črpalke in material

filtra), so obravnavani kot del enote.

Ta standard določa delovanje predizdelanih sekundarnih čistilnih enot, ki je potrebno za preverjanje

njihove primernosti za končno uporabo v pogojih, za katere so določene preskusne metode.

Ta standard se uporablja za sekundarne čistilne enote, ki so predizdelane in/ali izdelane za sestavljanje

na mestu vgradnje ter se uporabljajo nad površino (zunaj stavbe) ali so zakopane pod površino, kjer ni

vozil, ki obremenjujejo enoto.
Ta standard ne zajema:
– nevodotesnih sekundarnih čistilnih enot z neposredno infiltracijo v tla,
– kompletov za rekonstrukcijo (glej definicijo v 3.7).
2 Zveze s standardi

Za uporabo tega dokumenta so, delno ali v celoti, nujni naslednji referenčni dokumenti. Pri datiranih

sklicevanjih se uporablja samo navedena izdaja. Pri nedatiranih sklicevanjih se uporablja zadnja izdaja

referenčnega dokumenta (vključno z morebitnimi dopolnili).
EN 1085:2007 Čiščenje odpadne vode – Slovar
EN 12566-1 Male čistilne naprave do 50 PE – 1. del: Predizdelane greznice

EN 12566-3:2005+A1:2009 Male čistilne naprave do 50 PE – 3. del: Predizdelane in/ali na mestu

postavitve sestavljene čistilne naprave za gospodinjske odplake

EN 12566-4 Male čistilne naprave do 50 PE – 4. del: Montažne greznice, sestavljene na

mestu vgradnje

EN 12311-2 Hidroizolacijski trakovi – Ugotavljanje nateznih lastnosti – 2. del: Polimerni

in elastomerni trakovi za tesnjenje streh

EN 13501-1 Požarna klasifikacija gradbenih proizvodov in elementov stavb – 1. del:

Klasifikacija po podatkih iz preskusov odziva na ogenj
EN 14150 Geosintetične ovire – Ugotavljanje prepustnosti za tekočine

EN ISO 527-1 Polimerni materiali – Ugotavljanje nateznih lastnosti – 1. del: Splošna načela

(ISO 527-1)

EN ISO 2555 Polimerni materiali – Tekoče smole, emulzije ali disperzije – Preskusna

metoda za določanje navidezne viskoznosti po Brookfieldu (ISO 2555)
EN ISO 7899-1 Kakovost vode – Ugotavljanje prisotnosti in števila intestinalnih
enterokokov v površinskih in odpadnih vodah – 1. del: Metoda z
miniaturizacijo (najbolj verjetno število) z nasajanjem v tekočem gojišču
(ISO 7899-1)
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SIST EN 12566-6 : 2013
EN ISO 7899-2 Kakovost vode – Ugotavljanje prisotnosti in števila intestinalnih
enterokokov – 2. del: Metoda membranske filtracije (ISO 7899-2)

EN ISO 9308-1 Kakovost vode – Ugotavljanje prisotnosti in števila Escherichia coli in

koliformnih bakterij – 1. del: Metoda membranske filtracije (ISO 9308-1)

EN ISO 9308-3 Kakovost vode – Ugotavljanje prisotnosti in števila Escherichia coli in

koliformnih bakterij v površinski in odpadnih vodah – 3. del: Metoda z
miniaturizacijo (najbolj verjetno število) z nasajanjem v tekočem gojišču
(ISO 9308-3)
3 Izrazi in definicije

V tem dokumentu se uporabljajo izrazi in definicije, navedeni v EN 12566-3:2005+A1:2009 in EN

1085:2007, ter naslednji izrazi in definicije:
3.1
predizdelana sekundarna čistilna enota

tovarniško predizdelana enota, ki prečisti odpadno vodo iz greznice do navedene kakovosti

3.2
na mestu vgradnje sestavljena sekundarna čistilna enota

enota za čiščenje odpadne vode iz greznice do navedene kakovosti, ki jo zagotovi en proizvajalec in je

sestavljena na mestu vgradnje iz predizdelanih sestavnih delov
3.3
odprta enota
predizdelana enota brez pokrova
3.4
nazivna oznaka

ustrezne vrednosti za navedeno dnevno organsko obremenitev, izraženo v kilogramih BPK (ali BPK ) na

5 7

dan, in za navedeni dnevni hidravlični pretok, izražen v kubičnih metrih odpadne vode iz greznice na dan

(Q )
3.5
skupina enot

skupina enot, ki jih je izdelal en proizvajalec in za katere rezultati preskusa za vsaj eno lastnost

katerekoli enote iz skupine veljajo za vse ostale enote v skupini
3.6
čistilna naprava za odpadno vodo

kombinacija enot (npr. greznica) in/ali proizvodov (npr. cevi, črpalke), potrebna za izgradnjo naprave za

čiščenje odpadne vode v skladu s sliko 1
3.7
komplet za rekonstrukcijo

niz sestavnih delov, ki jih en proizvajalec zagotovi za vgradnjo v obstoječo greznico

3.8
hidroizolacijski trak
prilagodljiva neprepustna obloga
4 Simboli in kratice
V tem standardu se uporabljajo naslednji simboli in kratice:
BPK (ali BPK ) biokemijska potreba po kisiku po 5 ali 7 dneh
5 7
KPK kemijska potreba po kisiku
KN dušik po Kjeldahlu
---------------------- Page: 10 ----------------------
SIST EN 12566-6 : 2013
NH4-N amonijev dušik
NS neraztopljene snovi
TOC celotni organski ogljik
5 Nazivna oznaka
Vsaka predizdelana sekundarna čistilna enota mora biti označena glede na:

– nazivno dnevno organsko obremenitev z odpadno vodo iz greznice, izraženo v kg BPK (ali BPK )

5 7
na dan, in

– nazivni dnevni hidravlični pretok Q , izražen v kubičnih metrih odpadne vode iz greznice na dan,

ter navedbo ustreznih vrednosti.

OPOMBA: Izbira proizvoda z nazivno oznako. Odvisno od vrste pogojev končne uporabe predizdelane sekundarne čistilne

enote (tj. vgradnje v gospodinjstvih, gostiščih, podjetjih itd.) in predpisov v kraju predvidene uporabe, je morda

treba pri izbiri nazivne oznake enote za skupino proizvodov upoštevati vsaj eno od naslednjih meril projektiranja:

– velikost greznice (v skladu z EN 12566-1 ali EN 12566-4) v povezavi s celotno obremenitvijo prebivalstva;

– navedeno vrednost usedanja neraztopljenih snovi (v gramih kroglic).
6 Zahteve
6.1 Projektiranje
6.1.1 Splošno

Predizdelane sekundarne čistilne enote za odpadno vodo iz greznice morajo imeti stabilno konstrukcijo

in prenesti pričakovane obremenitve v okviru predvidene uporabe. Poleg tega morajo biti enote trajne,

vodotesne in odporne proti koroziji. Določiti je treba pravila, ki zagotavljajo, da rezultati preskusa za eno

ali več lastnosti katerekoli enote iz skupine veljajo za vse ostale enote v tej skupini.

Enote morajo biti opremljene z alarmnim sistemom, ki opozarja na odpoved delovanja (npr. električne,

mehanske ali hidravlične odpovedi), kjer je to primerno. Navesti je treba vrste odpovedi, ki jih zazna

alarm.

Pri zasnovi enote naj se upoštevajo ustrezne varnostne zahteve za gradnjo, namestitev, obratovanje in

vzdrževanje.
6.1.2 Skupne dimenzije

Skupne dimenzije predizdelane sekundarne čistilne enote (npr. višina, širina, dolžina, premeri itd.)

morajo biti izmerjene in navedene skupaj s tolerancami.

Skupne dimenzije morajo biti ocenjene z meritvami s točnostjo ±0,5 % pri posamezni dimenziji.

6.1.3 Vtočne in iztočne odprtine, notranji cevovod ter priključki

Navesti je treba nazivne premere vtočnih in iztočnih cevi predizdelane sekundarne čistilne enote.

Hidravlična zasnova enote, notranji cevovod in priključki morajo preprečevati kakršnekoli povratne

tokove, zamašitve ali preobremenitve pri običajnem obratovanju enote.

Vtočne in iztočne cevi morajo biti združljive s standardiziranimi cevnimi sistemi.

Dimenzije vtočnih in iztočnih cevi, notranjega cevovoda in priključkov morajo biti ocenjene z meritvami

s točnostjo ±0,5 % pri posamezni dimenziji.
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SIST EN 12566-6 : 2013
6.1.4 Dostop

Predizdelana sekundarna čistilna enota mora biti projektirana tako, da onemogoča nepooblaščen

dostop (npr. z zaklepnim mehanizmom).

Zasnova enote mora omogočati dostop za potrebe rednega vzdrževalnega vzorčenja, odvzemanja blata

(kjer je to primerno) ter čiščenja in vzdrževanja. Na voljo mora biti odprtina z dimenzijo (tj. širina pri

pravokotni površini ali premer pri krožni površini) vsaj 400 mm. Odprtina za dostop pri odprti enoti ni

potrebna.

OPOMBA 1: Za namestitev odprtih enot lahko veljajo lokalni predpisi za dostop za vzdrževanje.

OPOMBA 2: Zahteve za zagotavljanje dostopa osebe v predizdelano sekundarno čistilno enoto so lahko odvisne od veljavnih

predpisov, ki urejajo pogoje predvidene končne uporabe enote v posamezni državi članici, na primer najmanjša

dolžina odprtine za dostop osebe v skladu z EN 476 je 600 mm.

Jaški (kjer je to primerno) in pokrovi predizdelanih sekundarnih čistilnih enot za dostop morajo biti

zasnovani za svoj namen.

Navesti je treba dimenzije odprtin za dostop. Dimenzije odprtin za dostop je treba oceniti z meritvami s

točnostjo 0,5 % pri posamezni dimenziji.
6.2 Obremenitvena zmogljivost
6.2.1 Splošno

Za enote, ki ne vključujejo rezervoarja, ocena obremenitvene zmogljivosti ni zahtevana.

Preskusne metode in vrednosti za mehanske lastnosti materialov rezervoarja, ki se uporabljajo za izračun

obremenitvene zmogljivosti rezervoarja, morajo biti v skladu z EN 12566-3:2005+A1:2009, dodatek C.

Predizdelane sekundarne čistilne enote morajo v svoji predvideni življenjski dobi prenesti obremenitve,

ki so posledica obratovanja, vgradnje in uporabe, vključno z odvzemanjem blata in vzdrževanjem.

Za zakopane naprave je treba določiti obremenitveno zmogljivost predizdelane sekundarne čistilne

enote (tj. njenega rezervoarja):

– z izračunom ob poznavanju osnovnih podatkov za material in obremenitve (glej 6.2.2)

ali
– s preskusom neposredno na rezervoarju, ki je del enote (glej 6.2.3).

Če predizdelana sekundarna čistilna enota vključuje vodotesni jašek in/ali je vgrajena na nivoju vodne

gladine, je treba upoštevati ustrezne obremenitve pri največji vgradni globini enote in opraviti ustrezne

preskuse ali izračune za določitev obremenitvene zmogljivosti enote.
Obremenitvena zmogljivost je opredeljena kot:
– največja dovoljena višina zasipa (m),
– možnost vgradnje enote na nivoju vodne gladine, izražena kot VLAŽNO ali SUHO.

Obremenitveno zmogljivost predizdelanih sekundarnih čistilnih enot, ki so predvidene samo za uporabo

kot nezakopane, je treba oceniti izključno z izračunom.

Za enoto z vsebnikom iz hidroizolacijskih trakov je treba uporabiti izključno preskus v jami.

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SIST EN 12566-6 : 2013
6.2.2 Obremenitvena zmogljivost, določena z izračunom
6.2.2.1 Splošno
Uporabi se lahko ena od naslednjih dveh metod:

a) 1. metoda: posredna metoda, uporabna za vse materiale, z navedbo naslednjih parametrov:

1) geometrijski podatki enote: npr. debelina stene, razdalja med rebri, oblika,

2) lastnosti materialov in sestavnih delov: vsi parametri, podani v točki o trajnosti (6.6).

Proizvajalec mora v navodilih za vgradnjo navesti višino zasipa in možnost vgradnje enote na nivoju

vodne gladine (oznaka VLAŽNO ali SUHO).

OPOMBA: Proizvajalec lahko po potrebi vključi rezultate izračuna v skladu z računsko metodo, veljavno v kraju uporabe.

b) 2. metoda: neposredna navedba delovanja po ustreznem evrokodu:
1) Evrokod 2 za beton (kjer je to primerno),
2) Evrokod 3 za jeklo (kjer je to primerno).

Proizvajalec mora navesti rezultate izračuna v skladu z ustreznim evrokodom v obliki višine zasipa in

možnosti vgradnje enote na nivoju vodne gladine (oznaka VLAŽNO ali SUHO).
6.2.2.2 Obremenit
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