CEN/TR 12566-5:2008

Small wastewater treatment systems up to 50 PT - Part 5: Pre-treated Effluent Filtration systems

This Technical Report provides details of filtration systems used for applications ranging from a single house up to and included 50 PT. The filtration systems receive domestic wastewater from septic tanks manufactured according to the requirements given in EN 12566-1 and EN 12566-4.
This document is a code of practice and gives design parameters, construction details, installation and component requirements for constructed sand filters and subsurface flow sand or gravel reed beds.

Kleinkläranlagen für bis zu 50 EW - Teil 5: Filtrationsanlagen für vorbehandeltes häusliches Schmutzwasser

Dieser Fachbericht beschreibt Filtrationsanlagen, die für den Einsatz von solchen für ein einzelnes Haus bis zu solchen für bis zu 50 EW reichen. Die Filtrationsanlagen nehmen häusliches Schmutzwasser aus Faulgruben auf, die entsprechend den Anforderungen der EN 12566 1 und EN 12566 4 hergestellt wurden.
Dieses Dokument ist ein Leitfaden und enthält Ausführungsparameter, Einzelheiten zur Konstruktion sowie Anforderungen an den Einbau und die Bauteile von Sandfiltern und unterirdisch durchströmten Schilfbeeten mit Sand oder Kies.

Petites installations de traitement des eaux usées jusqu'à 50 EH - Partie 5 : Systèmes de filtration d'effluent prétraité

Le présent Rapport technique fournit des informations détaillées sur les systèmes de filtration utilisés pour des installations dont la taille varie depuis celle d’une seule habitation jusqu’à celle d’installations jusqu’à 50 EH inclus. Les systèmes de filtration reçoivent des eaux usées domestiques de fosses septiques fabriquées selon les exigences indiquées dans l’EN 12566-1 et l’EN 12566-4.
Le présent document est un code de bonne pratique et fournit les paramètres de conception, les détails de construction, les exigences concernant l’installation et les différents composants des filtres à sable et des lits de roseaux à écoulement souterrain à sable ou à gravier.

Male čistilne naprave do 50 PE - 5. del: Filtrirne naprave za predčiščene hišne odpadne vode

To tehnično poročilo navaja podrobnosti filtrirnih sistemov, ki se uporabljajo za vse enote od posameznih hiš do 50 PE. Filtrirni sistemi sprejemajo gospodinjsko odpadno vodo iz greznic, izdelanih v skladu z zahtevami EN 12566-1 in EN 12566-4.
Ta dokument je kodeks ravnanja ter podaja parametre zasnove, podrobnosti konstrukcije ter zahteve za vgradnjo in sestavne dele za izdelane peščene filtre in trstične grede s peskom ali gramozom za filtriranje podpovršinskega pretoka.

General Information

• Status: Published
• Publication Date: 04-Nov-2008
• ICS: 13.060.30 - Sewage water
• Technical Committee: CEN/TC 165 - Waste water engineering
• Drafting Committee: CEN/TC 165/WG 41 - Small type sewage treatment plants (< 50 inhabitants)
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 05-Nov-2008
• Completion Date: 05-Nov-2008
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Ref Project: SIST-TP CEN/TR 12566-5:2009 - Small wastewater treatment systems up to 50 PT - Part 5: Pre-treated effluent filtration systems

Relations

• Parent: CEN/TR 12566-2:2005 - Small wastewater treatment systems for up to 50 PT - Part 2: Soil infiltration systems
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2009
0DOHþLVWLOQHQDSUDYHGR3(GHO)LOWULUQHQDSUDYH]DSUHGþLãþHQHKLãQH
RGSDGQHYRGH
Small wastewater treatment systems up to 50 PT - Part 5: Pre-treated effluent filtration
systems
Kleinkläranlagen für bis zu 50 EW - Teil 5: Filtrationsanlagen für vorbehandeltes
häusliches Schmutzwasser
Petites installations de traitement des eaux usées jusqu'a 50 EH - Partie 5 : Systemes de
filtration d'effluent prétraité
Ta slovenski standard je istoveten z: CEN/TR 12566-5:2008
ICS:
13.060.30 Odpadna voda Sewage water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 12566-5
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
November 2008
ICS 13.060.30
English Version
Small wastewater treatment systems up to 50 PT - Part 5: Pre-
treated Effluent Filtration systems
Petites installations de traitement des eaux usées jusqu'à Kleinkläranlagen für bis zu 50 EW - Teil 5:
50 EH - Partie 5 : Systèmes de filtration d'effluent prétraité Filtrationsanlagen für vorbehandeltes häusliches
Schmutzwasser
This Technical Report was approved by CEN on 7 April 2008. It has been drawn up by the Technical Committee CEN/TC 165.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 12566-5:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
4 Description of filters.9
5 Design Parameters .9
6 Components.12
7 General requirements for the installation of septic tanks.15
8 Construction.15
9 Filter systems.17
10 Operation and Maintenance.27
Annex A (informative) Preliminary site consideration.29
Annex B (informative) Reeds bed filters comparison.31
Annex C (informative) Selection of suitable sands.33
Annex D (informative) Phosphorus removal .36
Bibliography .37

Foreword
This document (CEN/TR 12566-5:2008) has been prepared by Technical Committee CEN/TC 165
“Wastewater engineering”, the secretariat of which is held by DIN.
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.
The standard series EN 12566 "Small wastewater treatment systems for up to 50 PT" contains the following
parts:
 Part 1: Prefabricated septic tanks;
NOTE 1 This part specifies the requirements and test methods for prefabricated septic tank units.
 Part 2: Soil infiltration systems;
NOTE 2 Code of Practice for in-situ constructed soil infiltration systems. No treatment requirements are specified.
 Part 3: Packaged and/or site assembled domestic wastewater treatment plants;
NOTE 3 This part specifies the requirements and test methods used to evaluate packaged wastewater treatment plants
which are required to treat wastewater to a declared quality.
 Part 4: Septic tanks assembled in situ from prefabricated kits;
 Part 5: Pre-treated effluent filtration systems (this Technical Report);
 Part 6: Prefabricated treatment units for septic tank effluent (in preparation);
 Part 7: Prefabricated tertiary treatment units (in preparation).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Report: Austria, Belgium, Bulgaria, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland and the United Kingdom.

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
Introduction
Filtration systems have effluent collection systems and the effluent quality can be measured. The systems
described are intended to illustrate the main principles of construction and are subject to variation. The
regulatory authorities shall be consulted for suitability. All filtration systems shall be designed to accept the
total daily flow from at least one house.
No treatment efficiencies are indicated in this document for any particular system.
The dimensional values and ranges given in the document were agreed as sufficient to provide acceptable
treatment for basic parameters in the majority of simple situations.
Some specific dimensional values and ranges can be found in country’s codes of practice and regulations
given in the bibliography.
1 Scope
This Technical Report provides details of filtration systems used for applications ranging from a single house
up to and included 50 PT. The filtration systems receive domestic wastewater from septic tanks manufactured
according to the requirements given in EN 12566-1 and EN 12566-4.
This document is a code of practice and gives design parameters, construction details, installation and
component requirements for constructed sand filters and subsurface flow sand or gravel reed beds.
2 Normative references
The following referenced documents are indispensable for the 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 12050-2, Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2:
Lifting plants for faecal-free wastewater
EN 13252, Geotextiles and geotextile-related products — Required characteristics for use in drainage
systems
3 Terms and definitions
For the purposes of this Technical Report, the terms and definitions given in EN 1085:2007 and the following
apply.
3.1
biological layer
biological film which grows on the top of the filter material when pre-treated effluent from the septic tank
infiltrates the filter material
3.2
buried filter
filter covered with a layer of soil
3.3
collection layer
layer in which collection pipes collect treated waste water that has passed through the filter
3.4
collection pipe
perforated pipe placed at the bottom within the collection layer connected to the collection chamber
3.5
collection chamber
chamber receiving treated waste water from the collection layer and discharging through the pipe to the outfall
NOTE It is designed to enable effluent sampling.
3.6
collection trench
mound of granular fill material on the base of the excavation at the outlet side, in which a collection pipe
collects water which has passed through the filter
3.7
covered filter
filter usually covered with pebbles or gravel
3.8
connection pipe
non-perforated pipe used to connect the septic tank to the distribution chamber or the collection pipe(s) to an
external collection chamber
3.9
distribution chamber
chamber allowing even gravity distribution of septic tank effluent via the distribution pipes
3.10
distribution layer
layer of the system composed of granular fill material in which pre-treated effluent from the septic tank is
discharged through infiltration pipes
3.11
distribution pipe
non-perforated pipe used to connect the distribution chamber to a single infiltration pipe
3.12
dosing chamber
small tank receiving pre-treated effluent from the septic tank and containing a dosing device (e.g. a pump, a
hydraulic siphon or a tipping trough) which automatically discharges the desired volume
3.13
end connections
perforated and non-perforated pipes and fittings that connect the lower ends of infiltration pipes, and can
enable airflow between infiltration pipes
NOTE The connecting fittings may incorporate ventilation and access provision.
3.14
filter area
surface area of the filter material
3.15
filter material
inert material with various particle or pore sizes used for filtration
NOTE This material, often sand, placed beneath the distribution layer provides both an area for biological growth and
a degree of filtration for the pre-treated effluent from the septic tank.
3.16
filtration system
construction of infiltration pipes, filter material and a collection system used for treating pre-treated effluent
NOTE The infiltration pipes may be located either in trenches or beds which can be singular or multiple.
3.17
granular fill material
inert material in which the infiltration pipes are placed in the distribution or collection layers
Note It may also be used to replace native soil when used as backfill.
3.18
gravel filter
constructed filter using gravel as the filter material
3.19
horizontal reed bed
open gravel filter planted with macrophytes where the effluent is treated by flowing horizontally from the
distribution to the collection point
NOTE Local practice may dictate the use of specific macrophytes, reeds or plants.
3.20
horizontal filter
filter where the effluent is treated by flowing horizontally from the distribution to the collection point
3.21
impermeable film
inert membrane, which is impermeable to liquid
3.22
infiltration pipe
perforated pipe through which the pre-treated effluent from the septic tank is discharged into the treatment
installation
3.23
installation area
area of septic tank and filtration system excluding the outfall
3.24
land drain
surface or subsurface channel for the transportation of rainwater
NOTE They are used to dewater ground and divert the natural flow of surface and subsurface water away from the
filtration system.
3.25
lining
material used to form a container within an excavation
3.26
mesh
fabric, resistant to decomposition with hole diameters approximately 1 mm, which is permeable to liquid and
air but prevents solid particles from passing through it
3.27
open filter
uncovered filter
3.28
prefilter
device used to protect the treatment system (to prevent clogging of the filtration system, particularly the
infiltration pipes)
3.29
reed bed
open filter planted with macrophytes
NOTE Local practice may dictate the use of specific macrophytes, reeds or plants.
3.30
sand filter
constructed filter using sand as the filter material
3.31
vertical reed bed
open sand or gravel filter planted with macrophytes where the effluent is treated by flowing vertically
NOTE Local practice may dictate the use of specific macrophytes, reeds or plants.
3.32
vertical filter
filter where the effluent is treated by flowing vertically between the distribution and collection layer
3.33
water table
level below which the ground is saturated with water
4 Description of filters
The systems described in this document are:
 Buried vertical sand filter;
 Covered vertical sand filter;
 Open vertical sand filter with reeds;
NOTE 1 This system
...

SLOVENSKO SIST-TP CEN/TR 12566-5

TEHNIČNO
januar 2009
POROČILO
Male čistilne naprave do 50 PE – 5. del: Filtrirne naprave za predčiščene

hišne odpadne vode
Small wastewater treatment systems up to 50 PT – Part 5: Pre-treated effluent

filtration systems
Petites installations de traitement des eaux usées jusqu'a 50 EH –

Partie 5: Systemes de filtration d'effluent prétraité

Kleinkläranlagen für bis zu 50 EW – Teil 5: Filtrationsanlagen für vorbehandeltes

häusliches Schmutzwasser
Referenčna oznaka
ICS 13.060.30 SIST-TP CEN/TR 12566-5:2009 (sl)

Nadaljevanje na straneh II in od 1 do 39

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

SIST-TP CEN/TR 12566-5 : 2009
NACIONALNI UVOD
Slovensko tehnično poročilo SIST-TP CEN/TR 12566-5 (sl), Male čistilne naprave do 50 PE – 5. del:
Filtrirne naprave za predčiščene hišne odpadne vode, 2009, ima status slovenskega tehničnega
poročila in je istoveten evropskemu tehničnemu poročilu CEN/TR 12566-5 (en, de, fr), Small wastewater
treatment systems up to 50 PT – Part 5: Pre-treated effluent filtration systems, 2008.

NACIONALNI PREDGOVOR
Evropsko tehnično poročilo CEN/TR 12566-5:2008 je pripravil tehnični odbor Evropskega komiteja za
standardizacijo CEN/TC 165 Odvajanje in čiščenje odpadne vode. Slovensko tehnično poročilo SIST-
TP CEN/TR 12566-5:2009 je prevod evropskega tehničnega poročila CEN/TR 12566-5:2008. V primeru
spora glede besedila slovenskega prevoda v tem tehničnem poročilu je odločilno izvirno tehnično
poročilo v enem od treh uradnih jezikov CEN. Slovensko izdajo tehničnega poročila je potrdil Strokovni
svet SIST za splošno področje.

Odločitev za izdajo tega standarda je decembra 2008 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 12050-2 Črpališča odpadne vode za stavbe in zemljišča – Osnove gradnje in
preskušanja – 2. del: Črpališča odpadne vode brez fekalij
SIST EN 13252 Geotekstilije in geotekstilijam sorodni izdelki – Značilnosti, ki se zahtevajo pri
drenažnih sistemih
OSNOVA ZA IZDAJO STANDARDA
– privzem tehničnega poročila CEN/TR 12566-5:2008

OPOMBE
– Povsod, kjer se v besedilu dopolnila uporablja izraz "evropsko tehnično poročilo", v SIST-TP
CEN/TR 12566-5:2009 to pomeni "slovensko tehnično poročilo".

– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.

– Ta nacionalni dokument je istoveten CEN/TR 12566-5:2008 in je objavljen z dovoljenjem

CEN/CENELEC
Upravni center
Avenue Marnix 17
B-1000 Bruselj
This national document is identical with CEN/TR 12566-5:2008 and is published with the
permission of
CEN/CENELEC
Management Centre
Avenue Marnix 17
B -1000 Brussels
II
TEHNIČNO POROČILO CEN/TR 12566-5
TECHNICAL REPORT
RAPPORT TECHNIQUE
TECHNISCHER BERICHT november 2008

ICS 13.060.30
Slovenska izdaja
Male čistilne naprave do 50 PE – 5. del: Filtrirne naprave za predčiščene hišne
odpadne vode
Small wastewater treatment Petites installations de traitement des Kleinkläranlagen für bis zu 50 EW
systems up to 50 PT – eaux usées jusqu'a 50 EH – – Teil 5: Filtrationsanlagen für
Part 5: Pre-treated effluent Partie 5: Systemes de filtration vorbehandeltes häusliches
filtration systems d'effluent prétraité Schmutzwasser

To tehnično poročilo je CEN sprejel 7. aprila 2008. Pripravil ga je tehnični odbor CEN/TC 165.

Člani CEN so nacionalni organi za standarde Avstrije, Belgije, Bolgarije, Cipra, Češke republike, Danske,
Estonije, Finske, Francije, Grčije, Irske, Islandije, Italije, Latvije, Litve, Luksemburga, Madžarske, Malte,
Nemčije, Nizozemske, Norveške, Poljske, Portugalske, Romunije, Slovaške, Slovenije, Španije,
Švedske, Švice in Združenega kraljestva.

CEN
Evropski komite za standardizacijo
European Committee for Standardization
Comité Européen de Normalisation
Europäisches Komitee für Normung

Upravni center: rue de Stassart, 36, B-1050 Brussels

© 2008 CEN. Lastnice avtorskih pravic so vse države članice CEN Ref. oznaka: CEN/TR 12566-5:2008 E

SIST-TP CEN/TR 12566-5 : 2009
Vsebina Stran
Predgovor . 5
Uvod . 7
1 Področje uporabe . 8
2 Zveze s standardi . 8
3 Izrazi in definicije . 8
4 Opis filtrov . 11
5 Parametri za projektiranje . 12
5.1 Splošno . 12
5.2 Pogoji mesta uporabe . 12
5.2.1 Podnebne razmere . 12
5.2.2 Vodna gladina ali trdna podlaga . 12
5.2.3 Lokacija . 13
5.3 Parametri vtoka . 13
5.4 Izbira filtrirnega sistema. 14
6 Sestavni deli . 14
6.1 Splošno . 14
6.2 Cevi . 14
6.2.1 Splošno . 14
6.2.2 Razdelilna cev . 14
6.2.3 Infiltracijske in zbiralne cevi . 14
6.3 Pesek . 15
6.4 Zrnati polnilni material . 15
6.5 Zaščitni in ločitveni sloj . 15
6.6 Neprepustna obloga . 16
6.7 Črpalni sistemi . 16
6.8 Dozirni sistem . 16
6.9 Komore . 16
7 Splošne zahteve za vgradnjo greznic . 17
7.1 Splošno . 17
7.2 Prezračevanje . 17
8 Konstrukcija . 17
8.1 Splošno . 17
8.2 Drenaže . 17
8.3 Splošni previdnostni ukrepi pri izkopavanju . 17
8.4 Vodotesne konstrukcije . 17
8.5 Namestitev komor . 17
8.5.1 Splošno . 17
8.5.2 Razdelilna komora . 18
8.5.3 Zbiralna komora . 18
SIST-TP CEN/TR 12566-5 : 2009
8.5.4 Končni priključki . 18
8.6 Pregled infiltracijskih cevi . 18
8.7 Dostop in pregled . 18
8.8 Zasipavanje . 18
8.9 Prekritje . 18
9 Filtrirni sistemi . 19
9.1 Podzemni vertikalni peščeni filter . 19
9.1.1 Splošno . 19
9.1.2 Dimenzije . 19
9.1.3 Jama . 19
9.1.4 Obloga jame . 20
9.1.5 Oblikovanje zbiralnega sloja . 20
9.1.6 Namestitev cevi za prezračevanje . 20
9.1.7 Namestitev filtrirnega materiala . 20
9.1.8 Namestitev infiltracijskih cevi . 22
9.2 Prekriti vertikalni peščeni filter . 22
9.2.1 Dimenzije . 22
9.2.2 Konstrukcija . 22
9.3 Odprti vertikalni peščeni filter s trsjem . 22
9.3.1 Splošno . 22
9.3.2 Dimenzije . 23
9.3.3 Jama . 24
9.3.4 Obloga jame . 24
9.3.5 Oblikovanje zbiralnega sloja . 24
9.3.6 Namestitev prezračevalnih cevi . 24
9.3.7 Namestitev filtrirnega materiala . 24
9.3.8 Razdelilniki (izbirno) .
...