RBC with solids contact zone

Details RBC with solids contact zone RBC with solids contact zone

1987-05-04

1988-01-26

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210151, 2101953, 210197, C02F 318

Patent

active

047215704

ABSTRACT:
A method and apparatus for enhancing the settleability of suspended wastewater solids is provided for a wastewater treatment system comprising a primary clarifier apparatus, a compartmentalized, sequential secondary biological treatment apparatus such as a rotating biological contactor tank, and a secondary clarifier, wherein a portion of waste sludge from the clarifier is diverted to compartments of the rotating biological contactor tank to enhance the flocculation of the suspended waste solids. The diverted sludge particles serve as flocculation nuclei which promote settleability and lower turbidity once the effluent reaches the secondary clarifier.

REFERENCES:
patent: 3704783 (1972-12-01), Antonie
patent: 4035920 (1977-07-01), Torpey
patent: 4289626 (1981-09-01), Knopp et al.

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