Process for the purification of industrial waste-waters

Details Process for the purification of industrial waste-waters Process for the purification of industrial waste-waters

1994-04-29

1995-04-11

Wyse, Thomas

Liquid purification or separation

Processes

Treatment by living organism

210759, 210763, 210908, C02F 300

Patent

active

054055326

ABSTRACT:
The invention relates to a process for treating industrial waste water which comprises either: (a) pre-treating the waste water with at least two different pre-treatments selected from adsorption, membrane filtration and oxidation and then, biologically purifying the waste water or, (b) neutralizing and biologically purifying the waste water and then after-treating the waste water either by membrane filtration in combination with adsorption or oxidation or, by oxidation optionally in combination with adsorption or filtration on a nanofiltration membrane or, by filtration on a nanofiltration membrane.

REFERENCES:
patent: 3472765 (1969-10-01), Budd et al.
patent: 4005011 (1977-01-01), Sweeney
patent: 4066538 (1978-01-01), Cines et al.
patent: 4073722 (1978-02-01), Grutsch et al.
patent: 4178239 (1979-12-01), Lowther
patent: 4294703 (1981-10-01), Wilms et al.
patent: 4765900 (1988-08-01), Schwoyer et al.
patent: 4806244 (1989-02-01), Guilhem
patent: 4812237 (1989-03-01), Cawley et al.
patent: 4872991 (1989-10-01), Bartels et al.
patent: 4956093 (1990-09-01), Pirbazari et al.
patent: 5028336 (1991-07-01), Bartels et al.
JP 62-244494 (1987) (Abstract).
JP 87-289299 (1987) (Abstract).

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