Methane fermentation process for treating evaporator condensate

Details Methane fermentation process for treating evaporator condensate Methane fermentation process for treating evaporator condensate

1985-10-17

1987-05-19

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210617, 210928, 435167, 48197A, C02F 328, C12P 502

Patent

active

046666052

ABSTRACT:
A methane fermentation process for processing an evaporator condensate of a waste fluid from a pulp production system is disclosed. The process comprises the pre-treatment step of adding an acid into the evaporator condensate to settle and coagulate inhibitors for methane fermentation, removing the inhibitors, and thereafter neutralizing the waste fluid deprived of the inhibitors; and the fermentation step of allowing the effluent from the pre-treatment step to flow through a methane fermentation bio-reactor where the effluent undergoes fermentation to generate methane.

REFERENCES:
patent: 4213857 (1980-07-01), Ishida et al.
patent: 4297216 (1981-10-01), Ishida et al.
patent: 4514501 (1985-04-01), Kita et al.
patent: 4551250 (1985-11-01), Morper et al.
Frostell B. et al., "Full Scale Anaerobic Treatment of a Pulp and Paper Industry Wastewater"; Proc. of the 39th Ind. Waste Conf. Purdue Univ.; pp. 687-696; (1984).

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