Process for the treatment of waste and contaminated waters with

Details Process for the treatment of waste and contaminated waters with Process for the treatment of waste and contaminated waters with

1983-07-26

1985-09-03

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210712, 210724, 210737, 210769, 210906, 423130, 423131, 423150, C02F 152

Patent

active

045391190

ABSTRACT:
Waste-containing (contaminated) waters are treated for reuse and disposal with acceptable environmental improvements by adding a sulfate salt of aluminum and/or iron alkalized to form a waste-cohering hydroxide floc in one or more treatment plants, recovering the flocs and wastes by contacting with sulfur oxides to redissolve the aluminum and/or iron for reuse, in which case low cost sulfur containing fuels are utilized to provide heat and sulfur for recovering over one-half of the sulfur dioxide for reuse and reducing the lime required to neutralize the acidity.

REFERENCES:
patent: 3268443 (1966-08-01), Cann
patent: 3377271 (1968-04-01), Cann
patent: 3377272 (1968-04-01), Cann
patent: 3522173 (1970-07-01), Lindman et al.
Lin, "Wastewater Treatment with an SO.sub.2 -Removal By-Product", JWPCF, Sep. 1975, pp. 2271-2280.

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