Waste water treatment apparatus
AssigneeAeration Engineering Resources Corporation
InventorPaul W. Cummings, Jr.
Life of this patent
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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.
Claims7
An apparatus for cleaning accumulated deposits from the pores in the domes mounted in an activated sludge aeration sewage treatment pond in a system that includes in combination a concentrated liquid acid supply;
- and air pump;
- a drop leg;
- a main header;
- branch headers;
- plenum chambers and a plurality of diffuser domes each mounted on its respective plenum chamber wherein a dilute liquid acid is filled into and pumped through at least certain of said branch headers, said plenum chambers and the pores of their respective diffuser domes;
- said apparatus comprising a mixing means;
- means for feeding said concentrated liquid acid supply to said mixing means to produce said dilute liquid acid solution which is operative to react with the deposits in the pores of said domes;
- means to supply water under pressure to said mixing means for dissolving the concentrated liquid acid in the water to form said dilute acid;
- means to feed said dilute acid cleaning solution into said drop leg, said branch header, said plenum chambers and the pores of their respective domes;
- and means to force said dilute acid through said system whereby to react said dilute acid with said deposits and force the reaction products from the pores of said domes.
Dependencies are inferred from the claim text.