Polymer carrier masses as carriers in biochemical conversion pro

Details Polymer carrier masses as carriers in biochemical conversion pro Polymer carrier masses as carriers in biochemical conversion pro

1987-04-21

1989-04-11

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210603, C02F 308

Patent

active

048204153

ABSTRACT:
The present invention is directed to an improved process for the biological treatment of an aqueous, waste-containing liquid by the removal of organic matter by microorganisms wherein a carrier material for said microorganisms is added to said liquid and wherein said carrier material comprises a filler-containing, hydrophilic, open-celled polymer in the form of separate individual particles, the improvement wherein said polymer particles, when saturated with water and charged with at least 70 volume-% of biomass formed in the course of the process, have an average density of slightly below the density of said liquid and thereby are suspended in the upper two-thirds of said liquid.

REFERENCES:
patent: 4256573 (1981-03-01), Shimodaira et al.
patent: 4415454 (1983-11-01), Fuchs
patent: 4419243 (1983-12-01), Atkinson et al.
patent: 4521311 (1985-06-01), Fuchs et al.
patent: 4576718 (1986-03-01), Reischl et al.
patent: 4608397 (1986-08-01), Reischl

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