Sewage treatment equipment with activated sludge process beds

Details Sewage treatment equipment with activated sludge process beds Sewage treatment equipment with activated sludge process beds

1986-07-18

1987-07-14

Castel, Benoit

Liquid purification or separation

With gas-liquid surface contact means

210615, 210199, 210202, C02F 306

Patent

active

046801111

ABSTRACT:
A sewage treatment equipment with activated sludge process beds comprising a plurality of treatment tanks arranged in a row, each communicating with an adjacent tank through a passage and being provided with an aeration tank connected with an air in-flow pipe and a plurality of activated sludge process beds disposed vertically above the aeration pipe and in each of which a mesh-like or grid-like outer periphery of a cylindrical core is wrapped with a porous member of a certain thickness and further tightened with tightening belts, characterized in that an outer peripheral area of the cylindrical core is increased tank by tank to give variety to kind of bacteria, bredding ratio between bacterias and distribution thereof.

REFERENCES:
patent: 3577678 (1971-05-01), Burton
patent: 4181604 (1980-01-01), Onishi et al.

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