Waste water purification

Details Waste water purification Waste water purification

1981-11-03

1983-05-24

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210605, 210610, 210631, 210903, C02F 328, C02F 330

Patent

active

043849563

ABSTRACT:
A novel process for the purification of waste water and/or waste water sludge comprising subjecting the waste water and/or waste water sludge to first a methane fermentation step, then a denitrification step and finally an oxidation step by aeration, the electron donor in the denitrification step being mainly the sulfide from the methane fermentation step and the remaining reduced compounds in the liquid effluent from the methane fermentation step being oxidized in the aeration step.

REFERENCES:
patent: 3829377 (1974-08-01), Hashimoato
patent: 4134830 (1979-01-01), Skogman et al.
patent: 4183809 (1980-01-01), Klapwijk et al.

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