Use of specially prepared iron floc to oxidize and remove iron i

Details Use of specially prepared iron floc to oxidize and remove iron i Use of specially prepared iron floc to oxidize and remove iron i

1980-11-28

1981-09-08

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210714, 210718, 210722, 210724, 210754, C02F 152, C02F 176

Patent

active

042883288

ABSTRACT:
Ground water containing ferrous compounds is first treated with aluminum sulfate before aeration followed by lime addition after aeration to produce an iron-aluminum sludge possessing an oxidative capacity. Portions of the sludge are recycled back to utilize the oxidative capacity of the sludge. Chlorine is added after the oxidative capacity of the sludge has been utilized. An improved oxidation and removal of iron is obtained, yielding a treated water low in iron content with decreased requirements for chlorine.

REFERENCES:
patent: 3097163 (1963-07-01), Riddick
patent: 3377272 (1968-04-01), Cann
patent: 3617559 (1971-11-01), Cywin
patent: 3681238 (1972-08-01), Emmett
patent: 3738932 (1973-06-01), Kostenbader
patent: 4049545 (1977-09-01), Horvath

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