Page 11: Canadian Guidelines for Domestic Reclaimed Water for Use in Toilet and Urinal Flushing
Technology verification and certification are used to help verify reclaimed water effluent quality and equipment reliability. Verification and certification processes may include the following:
- general design and construction requirements and testing procedures to confirm system integrity and robustness;
- efficacy of treatment (based on applicable effluent water quality guidelines/standards);
- evaluation methodology to verify treatment system compliance;
- plumbing requirements to meet applicable codes/standards;
- additional considerations for specific treatment processes;
- installation requirements as per design specifications and regulatory authority approval conditions;
- documentation requirements; and
- monitoring requirements.
To date, there are very few technology performance certification standards specific to reclaimed water systems. Some work has recently been published on greywater treatment systems (NSW, 2005; Diaper et al., 2008). In the absence of evaluation protocols for reclaimed wastewater systems, on-site wastewater treatment performance protocols offer a rigorous methodology that can be applied to reclaimed wastewater technology. These protocols include the Canadian BNQ 3680-600-8 (Onsite Residential Wastewater Treatment Technologies) and the NSF/ANSI Standard 40 (Residential Wastewater Treatment Systems). In addition to the technology evaluation standards that have been developed, complementary documents, such as the Interim NSW Guidelines for the Management of Private Recycled Water Schemes (NSW, 2008), can provide useful information.
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