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Microaeration for hydrogen sulfide removal in UASB reactor
L. Krayzelova, J. Bartacek, N. Kolesarova, P. Jenicek,
Language English Country England, Great Britain
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Bacteria, Anaerobic physiology MeSH
- Equipment Failure Analysis MeSH
- Bioreactors microbiology MeSH
- Water Pollutants, Chemical isolation & purification metabolism MeSH
- Water Purification instrumentation MeSH
- Equipment Design MeSH
- Methane metabolism MeSH
- Wastewater microbiology MeSH
- Sewage microbiology MeSH
- Hydrogen Sulfide isolation & purification metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
The removal of hydrogen sulfide from biogas by microaeration was studied in Up-flow Anaerobic Sludge Blanket (UASB) reactors treating synthetic brewery wastewater. A fully anaerobic UASB reactor served as a control while air was dosed into a microaerobic UASB reactor (UMSB). After a year of operation, sulfur balance was described in both reactors. In UASB, sulfur was mainly presented in the effluent as sulfide (49%) and in biogas as hydrogen sulfide (34%). In UMSB, 74% of sulfur was detected in the effluent (41% being sulfide and 33% being elemental sulfur), 10% accumulated in headspace as elemental sulfur and 9% escaped in biogas as hydrogen sulfide. The efficiency of hydrogen sulfide removal in UMSB was on average 73%. Microaeration did not cause any decrease in COD removal or methanogenic activity in UMSB and the elemental sulfur produced by microaeration did not accumulate in granular sludge.
References provided by Crossref.org
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