AS 1546.3:2017 pdf free
AS 1546.3:2017 pdf free.On-site domestic wastewater treatment units
An STS may not significantly reduce nutrients such as nitrogen and phosphorus unless specifically designed for that purpose. An STS that is specifically designed to reduce the concentration of nitrogen and/or phosphorus in the final effluent, shall comply with Tables 2.2 and 2.6 in Section 2 and Appendix A.
This Standard is to be read in conjunction with the legislative instruments, by-laws,regulations, and policies of the regulatory authorities in the jurisdictions of Australia. The approval of a secondary treatment plant type and model, and approval for the installation of an individual secondary treatment system, including the method of treated effluent end use,is the responsibility of the relevant regulatory authorities.
Wastewater originating from household fixtures such as toilets, urinals, kitchens, bathrooms (including shower, washbasins, baths, spa baths, but excluding spa pools) and laundries;and wastewater flows from facilities serving staff, employees and residents in institutional,commercial, and industrial establishments， but excluding commercial and industrial wastewaters, large-scale laundry activities, and stormwater flows.
The separation of suspended material from wastewater by settlement and/or flotation in septic tanks， primary settling chambers， or other structures. In addition to physical separation of solids from liquid, the solids may be decomposed by aerobic or anaerobic microbiological processes and digestion (e.g. anaerobic sludge digestion).
A sub-surface flow, trickling-filter secondary wastewater treatment system consisting of horizontal layers of particulate material, such as sand and gravel, with macrophytes (generally reeds) planted in the surface layer, following a primary treatment system.Primary treated wastewater is intermittently dosed into pipes in the reedbed which distribute the flows through the media layers before the wastewater is disinfected and flows into the effluent storage chamber.
A sub-surface flow, trickling- filter secondary wastewater treatment system consisting of horizontal layers sand, gravel and/or other particulate media, following a primary treatment system. After primary treatment, wastewater is intermittently disbursed through pipes and flows through the filter layers once (i.e. a’single pass’) or is recirculated, before being disinfected and flowing into an effluent storage chamber.AS 1546.3 pdf free download.
