Waste water treatment apparatus

Details Waste water treatment apparatus Waste water treatment apparatus

1991-06-14

1994-09-20

Wyse, Thomas

Liquid purification or separation

With means to add treating material

Spaced along flow path

210220, 134170, C02F 320

Patent

active

053486501

ABSTRACT:
A treating apparatus is shown for removing cloggants from the pores and surfaces of aeration diffuser elements used in an activated sludge treatment process or the like. The apparatus pumps a liquid acid solution through the aeration piping network of the system and out through the diffusers for reacting the acid with the cloggants in the pores of the diffusers. After the cleaning action has been completed, the apparatus produces an agitation throughout the diffuser system being cleansed as the liquid acid is being pumped out of the system and the air flow is being reestablished.

REFERENCES:
patent: Re33177 (1990-03-01), Schmit et al.
patent: 2684330 (1954-07-01), French
patent: 2686138 (1954-08-01), Klein
patent: 2826209 (1958-03-01), Klein
patent: 3150007 (1964-09-01), Kovachy
patent: 4238244 (1980-12-01), Banks
patent: 4382867 (1983-05-01), Schmit et al.
patent: 4402758 (1983-09-01), Hobbs
patent: 4419141 (1983-12-01), Kunkel
Manual of Practice No. 5, "Air Diffusion in Sewage Works", Federation of Sewage & Industrial Wastes Assn.; pp. 48-62 (1952).

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