Liquid purification or separation – Processes – Treatment by living organism
Patent
1992-11-10
1993-12-14
Wyse, Thomas
Liquid purification or separation
Processes
Treatment by living organism
4232422, 435266, C02F 334
Patent
active
052699293
ABSTRACT:
A biological process is described involving the conversion of SO.sub.2 to H.sub.2 S using sulfate reducing bacteria in co-culture with facultatively anaerobic heterotrophs under anaerobic conditions in a maintenance medium which includes a substrate fermentable by the facultatively anaerobic heterotrophs to produce an end product which acts as the carbon and energy source for the sulfate reducing bacteria. Glucose and sewage sludge are the two fermentable substrates described. The process is described as being used in conjunction with a process for removing SO.sub.2 from a flue gas and then converting the SO.sub.2 to H.sub.2 S. The H.sub.2 S may be reacted with some remaining SO.sub.2 in a Claus reactor to produce elemental sulfur or the H.sub.2 S may be used as a reducing gas to regenerate the sorbent being used to remove the SO.sub.2 from the flue gas.
REFERENCES:
patent: 4242448 (1980-12-01), Brown, III
patent: 4519912 (1985-05-01), Kauffman et al.
patent: 4584271 (1986-04-01), Stern et al.
patent: 4614588 (1986-09-01), Li
patent: 4620928 (1986-11-01), Gott
patent: 4735723 (1988-04-01), Mulder
patent: 4789478 (1988-12-01), Revis et al.
Dasu Badri N.
Sublette Kerry L.
ABB Environmental Services Inc.
Wyse Thomas
LandOfFree
Microbial process for the reduction of sulfur dioxide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microbial process for the reduction of sulfur dioxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microbial process for the reduction of sulfur dioxide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1702405