BS EN 12566-3-2005 Small wastewater treatment systems for up to 50 PT — Part 3 Packaged andor site assembled domestic wastewater treatment plants.pdf

BRITISH STANDARD BS EN 12566-3:2005 Incorporating amendment no. 1 Small wastewater treatment systems for up to 50 PT Part 3: Packaged and/or site assembled domestic wastewater treatment plants The European Standard EN 12566-3:2005 has the status of a British Standard ICS 13.060.30 ? Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI BS EN 12566-3:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 15 February 2006 © BSI 2007 ISBN 0 580 47444 5 National foreword This British Standard was published by BSI. It is the UK implementation of EN 12566-3:2005. It supersedes BS 7781:1994 which is withdrawn. EN 12566-3 is a candidate harmonized European Standard and fully takes into account the requirements of the European Commission mandate M/118 Wastewater engineering products as amended by M/139, given under the EU Construction Products Directive (89/106/EEC) and is intended to lead to CE marking. The date of applicability of EN 12566-3 as a harmonized European Standard, i.e. the date after which this standard may be used for CE marking purposes, is subject to an announcement in the Official Journal of the European Communities. The Commission in consultation with Member States have agreed a transition period for the coexistence of harmonized European Standards and their corresponding national standard(s). It is intended that this period will comprise a period, usually nine months after the date of availability of the European Standard, during which any required changes to national regulations are to be made, followed by a further twelve-month period for the implementation of CE marking. At the end of this coexistence period, the national standard(s) will be withdrawn. EN 12566-3 is the subject of transitional arrangements agreed under the Commission mandate. In the UK the corresponding national standard is BS 7781:1994 which is withdrawn on publication of amendment no. 1:2007 (which revises the content of this national foreword). Regulatory authorities for the control of pollution in the United Kingdom normally require treatment plants conforming to BS EN 12566-3:2005 to be demonstrated as capable of producing a minimum effluent discharge quality of 20/30/20 (Biochemical Oxygen Demand/Suspended Solids/Ammoniacal Nitrogen in mg/l). A regulatory authority may deem a place of installation to require a higher performance and so prescribe a more stringent site-specific effluent discharge quality. Prior consultation is advisable. The three regulatory authorities were represented during the drafting of the above statement and are the Environment Agency of England and Wales, the Environment and Heritage Service of the Department of the Environment Northern Ireland, and the Scottish Environment Protection Agency. The UK participation in its preparation was entrusted to Technical Committee B/505, Wastewater engineering. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 1715931 May 2007Revision of national foreword and addition of supersession details Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 12566-3 July 2005 ICS 13.060.30 English version Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants Petites installations de traitement des eaux usées jusqu'à 50 PTE - Partie 3: Stations d'épuration des eaux usées domestiques prêtes à l'emploi et/ou assemblées sur site Kleinkläranlagen für bis zu 50 EW - Teil 3: Vorgefertigte und/oder vor Ort montierte Anlagen zur Behandlung von häuslichem Schmutzwasser This European Standard was approved by CEN on 20 June 2005. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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 © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12566-3:2005: E Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI EN 12566-3:2005 (E) 2 ContentsPage Foreword 4 1Scope.6 2Normative references .6 3Terms and definitions.8 4Symbols and abbreviations9 5Nominal designation.9 6Requirements9 6.1Design9 6.1.1General 9 6.1.2Inlets, outlets, internal pipework and connections 9 6.1.3Access .9 6.1.4Sizing basis.10 6.2Load bearing capacity10 6.2.1Data for calculation.10 6.2.2Testing of crushing resistance/maximum load deformation.12 6.3Treatment efficiency declaration .12 6.4Watertightness12 6.4.1General 12 6.4.2Water test.13 6.4.3Vacuum test.13 6.4.4Pneumatic pressure test 13 6.5Durability .13 6.5.1General 13 6.5.2Concrete 13 6.5.3Steel .13 6.5.4Unplasticized polyvinyl chloride (PVC-U) .13 6.5.5Polyethylene (PE)14 6.5.6Glass reinforced plastic (GRP) 15 6.5.7Polypropylene (PP).15 7Calculation and test methods16 7.1Watertightness16 7.2Treatment efficiency testing procedure 16 7.3Calculation and test methods for structural behaviour .16 8Technical information.17 9Evaluation of conformity17 9.1General 17 9.2Initial type tests.17 9.3Factory production control 18 9.3.1General 18 9.3.2Raw materials and components 18 9.3.3Production process 18 9.3.4Finished product testing 18 9.3.5Stock control.18 10Installation instructions19 11Operation and maintenance instructions19 Annex A (normative) Watertightness test.20 A.1Selection of test 20 Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI EN 12566-3:2005 (E) 3 A.2Water test 20 A.2.1Sample.20 A.2.2Procedure20 A.2.3Expression of results21 A.3Air permeability vacuum test.21 A.3.1Sample.21 A.3.2Procedure21 A.3.3Expression of results22 A.4Pneumatic pressure test 22 A.4.1Sample.22 A.4.2Procedure22 A.4.3Expression of results22 Annex B (normative) Treatment efficiency test procedure23 B.1Responsibility and testing location.23 B.2Plant selection and preliminary evaluation.23 B.2.1General 23 B.2.2Installation and commissioning.23 B.2.3Operation and maintenance procedures during testing23 B.2.4Data to be monitored24 B.3Test procedure24 B.3.1Time for establishment.24 B.3.2Influent characteristics.24 B.3.3Daily flow pattern for testing25 B.3.4Test procedure25 B.3.5Influent and effluent samplings.27 B.4Sample analysis28 B.5Test report.28 Annex C (normative) Calculation and test methods for structural behaviour .30 C.1General 30 C.2Concrete plant.30 C.2.1Crushing test methods.30 C.2.2Test procedures31 C.3Polyethylene and polypropylene plant34 C.3.1Vertical load test .34 C.4Determination of mechanical characteristics of test samples used for calculation35 C.4.1Concrete 35 C.4.2Glass reinforced plastic (GRP) 35 C.4.3PVC-U.35 C.4.4PE, PP36 C.4.5Steel.36 C.5Vacuum test for Glass Reinforced Plastic 36 C.6Pit test37 C.6.1Sample.37 C.6.2Procedure37 C.6.3Expression of results38 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive .39 ZA.1Scope and relevant characteristics.39 ZA.2Procedure of attestation of conformity of plants .40 ZA.2.1 System of attestation of conformity40 ZA.2.2 Declaration of conformity.41 ZA.3CE Marking42 Bibliography.45 Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI ? . . nd polypropylene nd polypropyle d test .est . ? mination of mechannation of me oncrete crete . Glass reinforcedGlass reinforc PVC-UPVC-U. ? PE, PPE, PP t ? . . . thods for structs for struct . EN 12566-3:2005 (E) 4 Foreword This European Standard (EN 12566-3:2005) 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 January 2006, and conflicting national standards shall be withdrawn at the latest by July 2008. This European Standard 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 European Standard. This European Standard provides the general requirements for packaged and/or site assembled treatment plants used for domestic wastewater treatment up to 50 PT (see Clause 1 “Scope“). The standard EN 12566 “Small wastewater treatment systems 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 This CEN/TS is a 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 sewage to a predetermined standard. The following Parts are in preparation: Part 4: Septic tanks built in situ from prefabricated kits Execution standard; Part 5: Pre-treated Effluent Filtration systems. Figure 1 shows the relationship between the parts of EN 12566. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI ? e of Practice of Practice d and/or site assemd and/or site asse This part specifiesThis part specifi ment plants which aent plants which rts arerts ? mbled trd tr ains the followinthe followi ethods for prefabriprefabri i EN 12566-3:2005 (E) 5 Key A Domestic waste water (influent) B Pre-treated waste water C Infiltration into the ground D Outlet of treated waste water (effluent) 1 Prefabricated septic tank (see Part 1) 2 Infiltration system (into the ground) (see Part 2;) 3 Waste water treatment plant (see Part 3) 4 Septic tank built in situ (see Part 4; in preparation) 5 Filtration systems (see Part 5; in preparation) National regulations may specify different arrangements between the products described in the standards series EN 12566. Figure 1 Scheme related to the arrangement of the parts of EN 12566 Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, © BSI EN 12566-3:2005 (E) 6 1 Scope This European Standard specifies requirements, test methods, the marking and evaluation of conformity for packaged and/or site assembled domestic wastewater treatment plants (including guest houses and businesses) used for populations up to 50 inhabitants. Small wastewater treatment plants according to this European Standard are used for the treatment of raw domestic wastewater. It covers plants with tanks made of concrete, steel, PVC-U, Polyethylene (PE), Polypropylene (PP) and Glass Reinforced Polyester (GRP-UP). The test methods specified in this European Standard establish the performance of the plant, needed to verify its suitability for the end use (see 3.1). This European Standard applies for small wastewater treatment plants for use buried in the ground where no vehicle loads are applied to the product. This European Standard applies to plants where all prefabricated components are factory or site-assembled by one manufacturer and which are tested as a whole. NOTE In some countries, domestic wastewater treatment plants are followed by other systems to conform to national regulations. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 206-1, Concrete Part 1: Specification, performance, production and conformity EN 580, Plastics piping systems Unplasticized poly(vinyl chloride) (PVC-U) pipes Test method for the resistance to dichloromethane at a specified temperature (DCMT) EN 727, Plastics piping and ducting systems Thermoplastics pipes and fittings Determination of the Vicat softening temperature (VST) EN 743:1994, Plastics piping and ducting systems Thermoplastics pipes Determination of the longitudinal reversion EN 858-1, Separator systems for light liquids (e.g. oil and petrol) Part 1: Principles of product design, performance and testing, marking and quality control EN 872, Water quality Determination of suspended solids Method by filtration through glass fibre filters EN 922, Plastics piping and ducting systems Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U) Specimen preparation for determination of the viscosity number and calculation of the Kvalue EN 976-1:1997, Underground tanks of glassreinforced plastics (GRP) Horizontal tanks for the non- pressure storage of liquid petroleum based fuels Part 1: Requirements and test methods for single wall tanks EN 978:1997, Underground tanks of glass-reinforced plastics (GRP) Determination of factor ? and factor ? EN 1085:1997, Wastewater treatment Vocabulary EN 1905, Plastics piping systems Unplasticized poly(vinyl chloride) (PVC-U) pipes fittings and material Method for assess