Phosphate removal from wastewater

Details Phosphate removal from wastewater Phosphate removal from wastewater

1977-11-23

1980-01-15

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 6, 210 16, 210DIG29, C02C 106

Patent

active

041838084

ABSTRACT:
In activated sludge-type wastewater treatment in which phosphate is taken up in the aeration zone, solids are concentrated in a separate zone to form phosphate-enriched sludge and phosphate is resolubilized in an anoxic zone, a major part of the latter is returned to aeration without intervening phosphate removal and phosphate wasting is solely from sludge.

REFERENCES:
patent: 3236766 (1966-02-01), Levin
patent: 3385785 (1968-05-01), Forrest et al.
patent: 3390077 (1968-06-01), Forrest et al.
patent: 3522171 (1970-07-01), Spiegel et al.
patent: 3681235 (1972-08-01), Topol
patent: 3730882 (1973-05-01), Levin et al.
patent: 3756946 (1973-09-01), Levin et al.
patent: 3964998 (1976-06-01), Barnard
patent: 4042493 (1977-08-01), Matsch et al.
Vacker et al., "Phosphate Removal Through Municipal Wastewater Treatment at San Antonio, Texas", Wastewater Pollution Control Federation Journal, vol. 39, No. 5, 5/1967, pp. 750-771.

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