https://scholars.lib.ntu.edu.tw/handle/123456789/408376
Title: | Enhancing denitrifying sulfide removal with functional strains under micro-aerobic condition | Authors: | Chen C. Wang A. Ren N. Zhao Q. Liu L. Adav S.S. Lee D.-J. Chang J.-S. |
Keywords: | Denitrifying sulfide removal;Inhibition;Micro-aerobic;Sulfide oxidase | Issue Date: | 2010 | Journal Volume: | 45 | Journal Issue: | 6 | Start page/Pages: | 1007-1010 | Source: | Process Biochemistry | Abstract: | The biological denitrifying sulfide reaction (DSR) frequently proceeds in anaerobic environments since excess oxygen inhibits the activity of the denitrifiers. This study isolated a consortium H7, comprising two strains, Penibacillus sp. and Aneurinibacillus aneurinilyticus. It indicated that the DSR performance with the H7 in a mixotrophic medium is significantly enhanced at high sulfide concentrations. The H7 was inhibited by adding >200 mg l-1 of S2- under anaerobic conditions. However, when 280 mg-1 of S2- was added, H7 could still degrade some of the sulfide, nitrate and acetate under micro-aerobic conditions. Micro-aerobic conditions stimulated the activity of sulfide oxidase and increased the removal rate of highly concentrated sulfide, reducing the inhibition of sulfide on denitrifiers and improving DSR performance. ? 2010 Elsevier Ltd. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408376 | ISSN: | 13595113 | DOI: | 10.1016/j.procbio.2010.02.013 |
Appears in Collections: | 化學工程學系 |
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