Treatment of water, sewage and like waste liquids

Details Treatment of water, sewage and like waste liquids Treatment of water, sewage and like waste liquids

1994-01-14

1996-02-27

Wyse, Thomas

Liquid purification or separation

Processes

Treatment by living organism

210150, C02F 302

Patent

active

054945810

ABSTRACT:
A process for the treatment of water or other liquid has a plurality of stationary surfaces on which microorganisms or like biologically active materials are fixed or grown which are contacted alternately with air and the liquid undergoing treatment by raising and lowering the liquid. This leads to purification by biological oxidation and other processes. Apparatus for performing the process comprises a tank containing arrays of plates and a wave generator for generating a wave action of liquid in the tank by means of which the alternate raising and lowering of the liquid is achieved. Beneficially the wavelength of the wave motion is arranged such that the tank length is 1/2, 1 or n times the wavelength where 2.times.n is an integer.

REFERENCES:
patent: 4100063 (1978-07-01), Hartmann
patent: 4966096 (1990-10-01), Adey
patent: 5262051 (1993-11-01), Iwatsuka
European Patent Office Standard Search Report (File: RS 92341).

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