Methods for removing pollutants from water and waste water and f

Details Methods for removing pollutants from water and waste water and f Methods for removing pollutants from water and waste water and f

1983-08-11

1985-05-28

Wyse, Thomas

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C02F 152

Patent

active

045199213

ABSTRACT:
A method for treating water or waste water to remove pollutants therefrom includes treating fly ash comprising aluminum, iron and silica with an aqueous base, recovering a base-treated, solid fly ash, washing the base-treated solid fly ash with water, recovering a rinsed, base-treated fly ash solid, reacting the rinsed, base-treated fly ash solid with mineral acid, and recovering an aqueous, solubilized acidic fly ash leachate, then mixing the aqueous, acidic solubilized fly ash leachate with water or waste water to remove pollutants therefrom, or with sludge to reduce its resistant to dewatering.

REFERENCES:
patent: 3720609 (1973-03-01), Smith et al.
patent: 4024087 (1977-05-01), Lanier et al.
patent: 4130627 (1978-12-01), Russ et al.

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