Process for cleaning a waste water stream or the like

Details Process for cleaning a waste water stream or the like Process for cleaning a waste water stream or the like

1996-10-15

1998-11-03

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210612, 210631, 210903, C02F 334, C02F 158

Patent

active

058303570

ABSTRACT:
The invention relates to a process for cleaning a waste water stream or the like, comprising:
a desulphurization step, in the form of addition of a desulphurizing agent, and addition of a buffer; followed by
a biodenitrification step carried out by micro-organisms which feed on the buffer remaining in the waste-water stream of the desulphurization step;
wherein sulphur contamination and the like is removed in the desulphurization step and wherein nitrate contamination and the like as well an the buffer, are removed in the bio-denitrification step.

REFERENCES:
patent: 3617539 (1971-11-01), Grutsch et al.
patent: 4076515 (1978-02-01), Richard
patent: 4537682 (1985-08-01), Wong-Chong
patent: 4839052 (1989-06-01), Maree
patent: 5240600 (1993-08-01), Wang et al.
Patents Abstracts of Japan, Publication No. JP55064899, Publication Date: May 15, 1980, 3 pages.
Patent Abstracts of Japan, Publication No. JP59076597, Publication Date: May 1, 1984, 3 pages.
Patents Abstracts of Japan, Publication No. JP59173199, Publication Date: Oct. 1, 1984, 3 pages.

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