Process for removing monohydric and polyhydric phenols from wast

Details Process for removing monohydric and polyhydric phenols from wast Process for removing monohydric and polyhydric phenols from wast

1976-01-09

1977-05-24

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 73R, 260627H, B01D 1104

Patent

active

040254232

ABSTRACT:
Monohydric and polyhydric phenols are removed from waste water together with hydrogen sulfide, free and combined ammonia, by extraction and distillation. The waste water is formed during the degasification or gasification of coal and is subsequently subjected to biological purification.
The steps of the process are as follows:

REFERENCES:
patent: 1832140 (1931-11-01), Shaw
patent: 2445825 (1948-07-01), Gollmar
patent: 2675412 (1954-04-01), Herbert et al.
patent: 2807654 (1957-09-01), Grimmett et al.
patent: 3036882 (1962-05-01), Bemmann et al.
patent: 3277185 (1966-10-01), Eisenlohr et al.
patent: 3963610 (1976-06-01), Hauschulz et al.

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