Wastewater treatment process

Details Wastewater treatment process Wastewater treatment process

1988-04-06

1990-09-11

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210631, 210650, C02F 308

Patent

active

049560930

ABSTRACT:
A wastewater treatment system in which biologically active particulate material mixed with wastewater is recirculated under turbulent conditions. The biomass is maintained at high concentration, and recirculation of the particles maintains the biological layer on the particles at a more active and efficient state would be the case without such recirculation. The system is particularly efficient, especially when the organic waste materials are slowly or relatively non-biodegradable, when the particulate material is adsorbtive (as, for example are particles of activated carbon) and the recirculation system includes an ultrafilter. When combined with a pretreatment of either alum or ferric chloride with lime, the system is particularly suited for efficient and effective treatment of dairy wastes.

REFERENCES:
patent: 3490590 (1970-01-01), Davies
patent: 3904518 (1975-09-01), Hutton et al.
patent: 4173532 (1979-11-01), Keoteklian
patent: 4200524 (1980-04-01), Levin
patent: 4566971 (1986-01-01), Reimann et al.
patent: 4582607 (1986-04-01), Kiese et al.

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