CSA B128 3-2012 Performance of non-potable water reuse systems (First Edition).pdf

1、B128.3-12Performance of non-potable water reuse systemsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers represe

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18、onale for the change. 2012 CSA Group Performance of non-potable water reuse systemsSeptember 2012 1B128.3-12Performance of non-potable water reuse systems1Scope1.1This Standard covers packaged non-potable water reuse systems for wastewater or greywater that are intended for treatment applications an

19、d have a capacity of 10 000 L/d (2650 gal/d) or less.This Standard also covers site-assembled components included in package non-potable water reuse systems.Notes: (1) In this Standard, package non-potable water reuse systems for wastewater or greywater are referred to as package plants.(2) This Sta

20、ndard is not intended to limit the use of package reuse systems in combination for applications that require a treatment capacity greater than 10 000 L/d (2650 gal/d).(3) This Standard does not cover custom-engineered systems. For such systems, the authority having jurisdiction should be consulted.(

21、4) Greywater diverters are covered in ASME A112.18.2/CSA B125.2.(5) See AnnexE for information on design, warranty, and service policy.1.2This Standard specifies test methods for evaluating the performance of the package plants and minimum requirements with regard to(a) materials;(b) design and cons

22、truction;(c) treatment performance;(d) markings; and(e) instructions and other documentation.1.3This Standard specifies two different levels (Class A and Class B) of treated reclaimed water quality. The requirements of Class A are more stringent than those of Class B (see Clause 5.9.1). The authorit

23、ies having jurisdiction are responsible for determining the appropriate class of reclaimed water for each non-potable purpose.1.4In CSA standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to

24、 express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause i

25、s to separate from the text explanatory or informative material.Notes to tables and figures are considered part of the table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.B128.3-12 2012 CSA Group2 S

26、eptember 20121.5The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. All references to gallons are to US gallons.2 Reference publicationsThis Standard refers to the following publications, and

27、 where such reference is made, it shall be to the edition listed below, including all amendments published thereto.CSA GroupB66-10Design, material, and manufacturing requirements for prefabricated septic tanks and sewage holding tanksC22.1-12Canadian Electrical Code, Part IC22.2Canadian Electrical C

28、ode, Part IICAN/CSA-Z107.56-06 (R2011)Procedures for the measurement of occupational noise exposureAPHA/AWWA/WEF (American Public Health Association/American Water Works Association/Water Environment Federation)Standard Methods for the Examination of Water and Wastewater, 22nd ed. (2012)ASME/CSA (Am

29、erican Society of Mechanical Engineers/Canadian Standards Association)ASME A112.18.2-2011/CSA B125.2-11Plumbing waste fittingsBritish Columbia Ministry of EnvironmentMunicipal Sewage Regulation Policy Intentions Paper for Consultation (2009)Health CanadaCanadian Guidelines for Domestic Reclaimed Wat

30、er for Use in Toilet and Urinal Flushing (2010)ISO (International Organization for Standardization)12103-1:1997Road vehicles Test dust for filter evaluation Part 1: Arizona test dustNSF InternationalNSF/ANSI 350-2011On-site residential and commercial water reuse treatment systemsOther publicationDia

31、per, C., Toifl, M., and Storey, M. 2008. Greywater Technology Testing Protocol. Commonwealth Scientific and Industrial Research Organisation (CSIRO). 2012 CSA Group Performance of non-potable water reuse systemsSeptember 2012 33 Definitions and abbreviations3.1 DefinitionsThe following definitions s

32、hall apply in this Standard:Bathroom greywater untreated wastewater from baths, showers, and lavatories.Biochemical oxygen demand (BOD) the amount of oxygen used by micro-organisms in the oxidation of organic matter.Note: BOD is typically expressed in mg/L.Blackwater untreated wastewater from water

33、closets, bidets, kitchen sinks, or dishwashers.BOD5 the BOD during a 5 d period at a temperature of 20 C (68F).Carbonaceous biochemical oxygen demand (cBOD) the BOD in the non-nitrogenous oxidation of organic matter.cBOD5 the cBOD during a 5 d period at a temperature of 20 C (68F).Challenge period a

34、 defined period in which a specimen is subjected to one or more stress events.Combined greywater system a package plant that produces reclaimed water from more than one source of greywater (bathing and laundry) as opposed to a single source of greywater.Composite sample a sample consisting of 100 di

35、screte samples, with each sample collection coinciding with a dosing event to the specimen (e.g., the sample is collected when the test specimen is dosed with wastewater).Consumable a resource that is intended to be replaced prior to depletion.Design review an examination of the manufacturers design

36、 specifications for a specimen to ensure that the specimen meets the specifications.Dosing delivery of discrete volumes of wastewater or greywater at prescribed time intervals.Effluent treated liquid discharged from a package plant.Grab sample a sample consisting of a single sample whose collection

37、coincides with a single dosing event to the sample (e.g., the sample is collected when the test specimen is dosed with wastewater) (compare Composite sample).Greywater untreated wastewater from bathtubs, showers, lavatories, clothes washers, and laundry tubs that has not come into contact with kitch

38、en waste or waste from a water closet, urinal, bidet, or bedpan washer.Note: Greywater does not include wastewater from water closets, bidets, kitchen sinks, or dishwashers.Greywater diverter a waste fitting that incorporates a mechanism that can be operated by a user to direct greywater for reuse o

39、r disposal.Note: Greywater diverters covered by ASME A112.18.2/CSA B125.2 are intended for redirecting screened untreated greywater to subsurface irrigation systems.Influent untreated liquid flowing into a package plant.Laundry greywater untreated wastewater from clothes washers and laundry tubs.Non

40、-potable water water not intended for human consumption.B128.3-12 2012 CSA Group4 September 2012Non-potable water system an assembly of pipes, fittings, valves, and appurtenances that collects and distributes non-potable water. Non-potable water systems can also treat non-potable water.Note: A non-p

41、otable water system can include storage tanks, pressurization equipment, and treatment systems (e.g., a package plant).Operating capacity the average daily volume of reclaimed water a package plant can produce on a sustained basis.Package plant a fully assembled or readily assembled non-potable wate

42、r reuse system that(a)can be readily transported to the installation site;(b) allows for easy installation and immediate operation; and(c) is capable of supplying reclaimed water over a 24 h period.Package plant diverter a device used to divert(a) wastewater or greywater to a sanitary drainage syste

43、m in the event of a power or system failure; or(b) excess wastewater or reclaimed water to a sanitary drainage system if the storage system has reached design capacity.Note: A sanitary drainage system conducts wastewater to tanks, ground disposal systems, sanitary sewers, or other means of disposing

44、 of wastewater that are acceptable to the authority having jurisdiction.Reclaimed water wastewater or greywater collected and treated for a direct beneficial use.Recovery period a period of time after the final stress event of a stress test when the specimen is dosed at steady state.Seven-day (7 d)

45、average an average of measurements over a calendar week, calculated as the sum of all measurements taken during the calendar week divided by the number of measurements taken during that week.Single-source greywater system a package plant that produces reclaimed water from one source of greywater onl

46、y (bathing or laundry) as opposed to a combination of greywater sources.Specimen a package plant provided by a manufacturer for testing.Steady state the normal hydraulic and water quality operating conditions that a specimen is subjected to during a testing period.Stress event a period in which a sp

47、ecimen is stressed through water quantity, water quality, or mechanical deviations from steady state.Stress test a period that includes a challenge period followed by a recovery period.Thirty-day (30 d) average an average of measurements over a 30 d period, calculated as the sum of all measurements

48、taken during the 30 d period divided by the number of measurements taken during that period.Total suspended solids (TSS) the mass of dried solids retained on a standard glass-fibre filter, divided by the volume of the sample of water from which the solids were collected and expressed in mg/L.Note: S

49、ee the APHA/AWWA/WEFs Standard Methods for the Examination of Water and Wastewater for a definition of standard glass-fibre filter.Wash load the discharge from a residential clothes washing machine for the purpose of testing a package plant. A wash load(a)includes laundry detergent and non-chlorine bleach dosed at the rates specifie