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MUNICIPAL WASTE WATER TREATMENT PLANT/PROCESS WITH BY PRODUCT AND DRINKING WATER RECYCLE
MUNICIPAL WASTE WATER TREATMENT PLANT/PROCESS WITH BY PRODUCT AND DRINKING WATER RECYCLE
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机译：带有副产品和饮用水循环的城市废水处理厂/工艺
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摘要
A domestic waste water plant/process design to replace the century old Activated Sludge process that uses modern biochemical engineering equipment allowing removal of bactria of influent waste water by serial separation of solids in stages of clarification at one, higher G's in a continuous splitting bowl centrifuge feeding solids to an anaerobic digester and centrate to a final micro-filtration through an absolute one micron pore size ceramic membrane to a aerobic continuous bioreactor with high energy input/oxygen transfer rates and selected microbes suitable for animal/fish high protein feed of far smaller volume than AS bioreactors having a sidearm loop for microbe retention/liquid purge for short retention times necessary in the bioreactor.;The first bioreactor is an anaerobic digestion of cellulosic solids from the primary clarifier by methane producing anaerobes gives fuel and organic fertilizer. The second bioreactor produces algae or yeast for animal/fish feed by metabolizing organics, nitrogen and phosphorous in the centrifuged, filtered overflow of the clarifier by aerobic fermentation of pure selected cultures in a side arm fermenter where filtrate is purged through a retaining micro-filter and cells are concentrated. The bacteria free filtrate of the purge is further purified in a UF/RO unit of hollow fiber or spiral wound design with molecular weight cutoff similar to desalination units to produce microbe and virus free drinking water to be recycled to the municipal water supply conserving water in areas of limited supply or dense population.
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