Heavy metal removal from wastewater sludge

Details Heavy metal removal from wastewater sludge Heavy metal removal from wastewater sludge

1978-11-21

1980-03-18

Prescott, Arthur C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204152, C02C 512

Patent

active

041938542

ABSTRACT:
Insoluble heavy metal sulfides in activated sludge are converted by biochemical oxidation to soluble sulfates, followed by deposition of metals on cathode from sludge as electrolytic bath.

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patent: 3642435 (1972-02-01), Allen et al.
patent: 3806435 (1974-04-01), Ohta et al.
patent: 3869360 (1975-03-01), Kane et al.
patent: 3899405 (1975-08-01), Iverson et al.
patent: 3926754 (1975-12-01), Lee
patent: 3970531 (1976-07-01), Recht

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