Process for treating waste water and an apparatus therefor

Details Process for treating waste water and an apparatus therefor Process for treating waste water and an apparatus therefor

1974-05-03

1979-01-30

Wyse, Thomas G.

Liquid purification or separation

With gas-liquid surface contact means

C02C 104

Patent

active

041371712

ABSTRACT:
A process for treating waste water such as sewage wherein waste water to be purified is brought successively into contact with a number of net units which are arranged in a treating tank with certain intervals therebetween. Organic substances in the waste water are removed due to decomposition caused by microorganisms which adhere to the net units. In the net units, water being in contact with the individual net units is always replaced, a disturbance is given to the water resulting in easy approach of the organic substances to the microorganisms, contact area between the organic substances and the microorganisms is large, and various kinds of microorganisms propagate. Thus, removal of the organic substances proceeds effectively and promptly. An apparatus which is suitable for carrying out the process is also proposed.

REFERENCES:
patent: 3112261 (1963-11-01), Porter et al.
patent: 3335081 (1967-08-01), El Naggar
patent: 3402125 (1968-09-01), Tanaka
patent: 3466241 (1969-09-01), Simpson
patent: 3485372 (1969-12-01), Nordgard
patent: 3617541 (1971-11-01), Pan
patent: 3715304 (1973-02-01), Hefermehl
patent: 3730883 (1973-05-01), Lefrancois
patent: 3745113 (1973-07-01), Fuchs
patent: 3837492 (1974-09-01), Di Bello
patent: 3847811 (1974-11-01), Stengelin
patent: 3878097 (1975-04-01), Mochizuki et al.

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