Method for sulfide toxicity reduction

Details Method for sulfide toxicity reduction Method for sulfide toxicity reduction

1985-08-22

1986-09-30

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210611, 210614, C02F 328

Patent

active

046145885

ABSTRACT:
A method and system for reducing the sulfur concentration of wastewater which is to be disposed of through anaerobic treatment. Wastewater high in sulfur content is fed to a reactor having a pH level less than 6, such that the sulfate and/or sulfite compounds in the wastewater are converted by sulfate reducing bacteria into sulfide gas, thereafter exhausting the sulfide gas from the reactor. It is preferred that two anaerobic reactors be connected in series, such that the first reactor contains sulfate reduce bacteria and/or acid-forming bacteria, and the second reactor contains methane-forming bacteria and/or acid-forming bacteria.

REFERENCES:
patent: 3105014 (1963-09-01), Harrison
patent: 4067801 (1978-01-01), Ishida et al.
patent: 4200523 (1980-04-01), Balmat
patent: 4351729 (1982-09-01), Witt
patent: 4384956 (1983-05-01), Mulder
patent: 4396402 (1983-08-01), Ghosh

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