Waste water treatment with oxygen

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow

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210 14, 210 15, C02C 102

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active

040691470

ABSTRACT:
The organic pollutants in a waste water stream can be reduced 90-95% by providing oxygen to sludge organisms for biological oxygenation of the pollutants. The raw waste water and activated organisms (sludge containing little or no pollutants) are mixed in a vessel for less than 30 minutes. In this vessel, the organisms absorb and adsorb 90-95% of the organic pollutants present in the influent raw waste water. Any means for gentle agitation can be used in this vessel. The waste-enriched organisms are separated from the supernatant liquid in a clarifier and sent to an oxygenation vessel where the organisms metabolize the waste by treatment with an oxygen-containing gas having at least 30% by volume oxygen. The thus-activated organisms are returned to the mixed liquor vessel to complete the cycle.

REFERENCES:
patent: 3235487 (1966-02-01), Westgarth
patent: 3557954 (1971-01-01), Welch
patent: 3725258 (1973-04-01), Spector et al.
patent: 3763039 (1973-10-01), Wilson
patent: 3803029 (1974-04-01), Blecharczyk
patent: 3872003 (1975-03-01), Walker
Ullrich et al., "The Bio-sorption Process of Sewage and Waste Treatment," Sewage & Ind. Wastes 23, 1248, 1951.
Ullrich et al., "Biosorption at Austin Texas," Sewage & Ind. Wastes, 29, 400, 1957.

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