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.
- MeSH
- anaerobní bakterie fyziologie MeSH
- analýza selhání vybavení MeSH
- bioreaktory mikrobiologie MeSH
- chemické látky znečišťující vodu izolace a purifikace metabolismus MeSH
- čištění vody přístrojové vybavení MeSH
- design vybavení MeSH
- methan metabolismus MeSH
- odpadní voda mikrobiologie MeSH
- odpadní vody mikrobiologie MeSH
- sulfan izolace a purifikace metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
