SIST EN 12920:2006+A1:2009
(Main)Characterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions
Characterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions
This European Standard specifies a methodology for the determination of the leaching behaviour of a waste or a waste from the extractive industry under specified conditions (i.e. for a specified scenario including a specified time frame) in order to provide a solution to a defined problem. This applies to disposal and recovery scenarios.
NOTE 1 Recovery is the term defined in the European Waste Acts [1,3]. It includes re-use and recycling.
The external conditions which have a direct influence on the release of constituents from waste are considered. Migration of constituents leached from the disposal or the recovery site into the surrounding environment is not considered. Also the assessment of toxicity to humans or ecological impacts on flora and fauna as a secondary effect after release of constituents from the waste is not considered.
NOTE 2 Present knowledge of highly complex scenarios and wastes may limit the ability to provide a clear solution to a defined problem. An example may be the land filling of complex mixtures of wastes or the prediction of the acid generation behaviour waste from the extractive industry.
Charakterisierung von Abfall - Vorgehensweise zur Bestimmung des Auslaugungsverhaltens von Abfall unter festgelegten Bedingungen
Diese Europäische Norm legt eine Vorgehensweise zur Bestimmung des Auslaugungsverhaltens von Abfall unter festgelegten Bedingungen (d. h. für ein festgelegtes Szenarium einschließlich eines festgelegten Zeitrahmens) fest, um eine Lösung für ein genau beschriebenes Problem zu geben. Dies gilt für Beseitigungs- und Verwertungsszenarien."
ANMERKUNG 1 Verwertung ist als Begriff in den Europäischen Abfallrichtlinien [1, 3] definiert. Verwertung beinhaltet Wiederverwendung und Recycling. !Der Begriff Abfall umfasst alle Arten von Abfall, z. B. kommunalen Abfall, Abfall der mineralgewinnenden Industrie."
Es werden die äußeren Bedingungen betrachtet, die die Freisetzung von Bestandteilen aus Abfall direkt beeinflussen. Die Migration von ausgelaugten Bestandteilen des Beseitigungs- oder Verwertungsstandortes in die Umgebung findet keine Berücksichtigung. Die Beurteilung der Toxizität für den Menschen oder die ökologischen Einflüsse auf Flora und Fauna als einem Nebeneffekt nach Freisetzung der Bestandteile aus dem Abfall werden ebenfalls nicht berücksichtigt.
ANMERKUNG 2 Das derzeitige Wissen von sehr komplexen Szenarien und Abfällen kann die Möglichkeit für eine eindeutige Lösung eines bestimmten Problems einschränken. Ein Beispiel kann die Deponierung eines komplexen Abfallgemisches sein !, oder die Prognose des Säurebildungsverhaltens von Abfall der mineralgewinnenden Industrie.
Caractérisation des déchets - Méthodologie pour la détermination du comportement à la lixiviation d'un déchet dans des conditions spécifiées
La présente norme spécifie une méthodologie permettant de déterminer le comportement à la lixiviation d'un déchet
dans des conditions spécifiées (c'est-à-dire pour un scénario spécifié sur une période donnée), afin de fournir une
solution à un problème déterminé. Elle s'applique aux scénarios d'élimination et de valorisation.
NOTE 1 Le terme valorisation est un terme défini dans les décrets européens sur les déchets [1, 3]. Il comprend le ré-emploi
et le recyclage. !Le terme «déchets» comprend toutes les catégories de déchets, tels que les déchets municipaux, les
déchets issus de l’industrie extractive, etc."
Les conditions externes qui ont une influence directe sur le relargage des constituants d'un déchet sont prises en
considération. La migration dans l'environnement immédiat des constituants lixiviés à partir du site d'élimination ou
de valorisation n'est pas prise en compte. N'est pas non plus prise en considération l'évaluation de la toxicité pour les
humains ou les impacts écologiques sur la flore et la faune en tant qu'effet secondaire du relargage des constituants
du déchet.
NOTE 2 Il se peut que l'état actuel des connaissances en matière de scénarios et de déchets particulièrement complexes
limite la possibilité de fournir une solution claire au problème posé. Un exemple peut être la mise en décharge de mélanges
complexes de déchets !ou les prévisions du comportement de production acide des déchets issus de l’industrie
extractive".
Karakterizacija odpadkov - Metodologija za določanje izlužljivosti odpadkov pri določenih pogojih (vključno z dopolnilom A1)
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Charakterisierung von Abfall - Vorgehensweise zur Bestimmung des Auslaugungsverhaltens von Abfall unter festgelegten BedingungenCaractérisation des déchets - Méthodologie pour la détermination du comportement à la lixiviation d'un déchet dans des conditions spécifiéesCharacterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions13.030.01Odpadki na splošnoWastes in generalICS:Ta slovenski standard je istoveten z:EN 12920:2006+A1:2008SIST EN 12920:2006+A1:2009en,fr,de01-marec-2009SIST EN 12920:2006+A1:2009SLOVENSKI
STANDARD
SIST EN 12920:2006+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12920:2006+A1
September 2008 ICS 13.030.01 Supersedes EN 12920:2006English Version
Characterization of waste -Methodology for the determination of the leaching behaviour of waste under specified conditions
Caractérisation des déchets - Méthodologie pour la détermination du comportement à la lixiviation d'un déchet dans des conditions spécifiées
Charakterisierung von Abfall - Vorgehensweise zur Bestimmung des Auslaugungsverhaltens von Abfall unter festgelegten Bedingungen This European Standard was approved by CEN on 6 February 2006 and includes Amendment 1 approved by CEN on 30 July 2008.
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 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 Management Centre has the same status as the official versions.
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 worldwide for CEN national Members. Ref. No. EN 12920:2006+A1:2008: ESIST EN 12920:2006+A1:2009
EN 12920:2006+A1:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Terms and definitions.5 3 Description of the steps in the methodology.6 3.1 Outline.6 3.2 Step 1: Definition of the problem and the solution sought.7 3.3 Step 2: Description of the scenario.7 3.4 Step 3: Description of the waste.8 3.5 Step 4: Determination of the influence of parameters on leaching behaviour within the specified time frame.8 3.6 Step 5: Modelling of leaching behaviour within the specified time frame.9 3.7 Step 6: Behavioural Model Validation.9 3.7.1 General.9 3.7.2 Verification of the consistency between parameter specific tests and simulation tests.9 3.7.3 Verification of predicted behaviour in the field.9 3.7.4 Identification of analogy with geological natural and/or ancient materials.10 3.8 Step 7: Conclusion.10 4 Study report.10 Annex A (informative)
Principle of the methodology.11 Bibliography.12
SIST EN 12920:2006+A1:2009
EN 12920:2006+A1:2008 (E) 3 Foreword This document (EN 12920:2006+A1:2008) has been prepared by Technical Committee CEN/TC 292 “Characterization of Waste”, the secretariat of which is held by NEN. 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 March 2009, and conflicting national standards shall be withdrawn at the latest by March 2009. This document includes Amendment 1, approved by CEN on 2007-07-30. This document supersedes !EN 12920:1997". The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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.
SIST EN 12920:2006+A1:2009
EN 12920:2006+A1:2008 (E) 4 Introduction The purpose of this standard is to provide a methodology for the determination of the leaching behaviour of a waste under specified conditions i.e. in a disposal or recovery scenario within a specified time frame. The methodology is designed to ensure that waste specific properties and scenario conditions are taken into account. The methodology contains several steps, some of which make use of chemical, biological, physical and leaching tests. A selection of tests is made depending on the objective, that is the definition of the problem and the solution sought, the waste under consideration and the scenario to be evaluated. It is recognised that based on the present state of knowledge it is not always possible to provide a clear solution. Determination of leaching behaviour in the context of this methodology may provide information with relatively large uncertainties. To avoid unnecessary duplication of work, reference can be made to existing documented information on specific waste characteristics and on previous evaluations of existing documented scenarios, provided that such reference is documented and justified in the study report for each step of the methodology to which it applies.
SIST EN 12920:2006+A1:2009
EN 12920:2006+A1:2008 (E) 5 1 Scope This standard specifies a methodology for the determination of the leaching behaviour of waste under specified conditions (i.e. for a specified scenario including a specified time frame) in order to provide a solution to a defined problem. This applies to disposal and recovery scenarios. NOTE 1 Recovery is the term defined in the European Waste Acts [1,3]. It includes re-use and recycling. !The term "waste" includes all categories of waste, such as municipal waste, waste from extractive industry etc." The external conditions which have a direct influence on the release of constituents from waste are considered. Migration of constituents leached from the disposal or the recovery site into the surrounding environment is not considered. Also the assessment of toxicity to humans or ecological impacts on flora and fauna as a secondary effect after release of constituents from the waste is not considered. NOTE 2 Present knowledge of highly complex scenarios and wastes may limit the ability to provide a clear solution to a defined problem. An example may be the land filling of complex mixtures of wastes !or the prediction of the acid generation behaviour waste from the extractive industry". 2 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 2.1 scenario description of a set of normal and exceptional conditions relevant to a particular disposal or recovery situation for wastes for the determination of the leaching behaviour within a specified time frame NOTE Disposal is defined in European Directive 91/156/EEC of 18 March 1991[1]. 2.2 release emission of constituents from waste which pass through the external surface of a waste mass as specified in the considered scenario 2.3 leaching behaviour of a waste release and change with time in release from the waste upon contact with a leachant under the conditions specified in the scenario, especially within the specified time frame NOTE Besides time, factors influencing the leaching behaviour may be liquid/solid ratio, pH, redox potential, complexation and particle size distribution. 2.4 parameter specific test test aimed at measuring an intrinsic property of waste or the (interrelated) influence of specific parameters on the release from waste in the considered scenario NOTE 1 Examples of intrinsic properties of waste are: diffusion coefficients, solubility, physical properties, etc. NOTE 2 Examples of specific parameters influencing the leaching behaviour are: temperature, pH, liquid/solid ratio, redox potential, the flow rate of leachant, chemical properties, etc. 2.5 simulation test test aimed at simulating the combined effect of various parameters on the release in the scenario under consideration SIST EN 12920:2006+A1:2009
EN 12920:2006+A1:2008 (E) 6 NOTE 1 A simulation test may be an accelerated test; care should to be taken in the use of acceleration tests for model validation purposes. NOTE 2 Examples of simulation tests are lysimeter tests and large-scale column tests. 2.6 behavioural model set of relationships between on the one hand the leaching behaviour and on the other hand the relevant conditions of the considered scenario (especially the specified time frame) as well as the relevant properties of the waste under consideration NOTE The behavioural model can vary in sophistication depending on the definition of the problem and the solution sought. !2.7 acid generation behaviour of a waste release and change with time in release of low pH drainage derived from materials with an insufficient capacity to neutralize the acidic products of sulfide and elemental sulfur oxidation and the dissolution products of acid producing minerals and amorphous materials NOTE Such behaviour occurs when the neutralisation potential is no longer capable of maintaining neutral pH conditions in a measurable volume of drainage. In the context of mining, this is referred to as acid rock drainage (ARD) or acid mine drainage (AMD)." 3 Description of the steps in the methodology 3.1 Outline The methodology consists of the following steps: a) definition of the problem and the solution sought; b) description of the scenario; c) description of the waste; d) determination of the influence of parameters on leaching behaviour; e) modelling of the leaching behaviour; f) behavioural model validation; g) conclusions; h) study report. These steps are to be carried out to determine the leaching behaviour of the waste in the considered scenario to provide the solution sought to the defined problem (see Annex A).
NOTE To avoid unnecessary duplication of work, reference can be made to existing documented information on specific waste characteristics and on previous evaluations of scenarios.
In order to comply with this standard, reference to existing information shall be docu
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