Waste water purification processes

Details Waste water purification processes Waste water purification processes

1978-03-23

1979-07-10

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

210 61, 568760, 423356, B01D 1104, C01C 102

Patent

active

041607252

ABSTRACT:
Waste water from coke ovens is purified by passing the waste water and a stripping fluid through a stripping column in counterflow. Non-volatile ammonium compounds are removed in one region of the column, phenolic compounds are removed in another region, and volatile ammonium compounds are removed in yet another region. The region in which phenolic compounds are removed is disposed at such a location that no ammoniacal vapor can traverse it. An acid and a strong base are fed laterally into the column at two different levels.

REFERENCES:
patent: 1378593 (1921-05-01), MacMahon
patent: 1838587 (1931-12-01), Sperr, Jr.
patent: 1873900 (1932-08-01), Miller
patent: 2781244 (1957-02-01), Hecklinger
patent: 3855076 (1974-12-01), Marecaux
patent: 4061718 (1977-12-01), Verlaften et al.

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