Effect of influent COD/SO42− ratios on biodegradation behaviors of starch wastewater in an upflow anaerobic sludge blanket (UASB) reactor

Effect of influent COD/SO42− ratios on biodegradation behaviors of starch wastewater in an... Bioresource Technology 214 (2016) 175–183 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Effect of influent COD/SO ratios on biodegradation behaviors of starch wastewater in an upflow anaerobic sludge blanket (UASB) reactor a b a a a a,c,⇑ Xueqin Lu , Guangyin Zhen , Jialing Ni , Toshimasa Hojo , Kengo Kubota , Yu-You Li Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-0053, Japan Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi 980-8579, Japan highl i ghts graphical a bstrac t Sulfidogenesis was essential to the UASB operation and process stability. Reactor showed the high stability at COD/SO ratios P2 with efficient removal of COD and sulfate. Sulfidogenesis promoted propionate degradation and acetoclastic methanogenesis. Excessive sulfidogenesis suppressed methanogenesis, deteriorating bioenergy conversion. article i nfo abstract Article history: A lab-scale upflow anaerobic sludge blanket (UASB) has been run for 250 days to investigate the influence Received 9 March 2016 of influent COD/SO ratios on the biodegradation behavior of starch wastewater and process perfor- Received in revised form 10 April 2016 2 mance. Stepwise decreasing COD/SO ratio enhanced sulfidogenesis, complicating http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bioresource Technology Elsevier

Effect of influent COD/SO42− ratios on biodegradation behaviors of starch wastewater in an upflow anaerobic sludge blanket (UASB) reactor

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0960-8524
D.O.I.
10.1016/j.biortech.2016.04.100
Publisher site
See Article on Publisher Site

Abstract

Bioresource Technology 214 (2016) 175–183 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Effect of influent COD/SO ratios on biodegradation behaviors of starch wastewater in an upflow anaerobic sludge blanket (UASB) reactor a b a a a a,c,⇑ Xueqin Lu , Guangyin Zhen , Jialing Ni , Toshimasa Hojo , Kengo Kubota , Yu-You Li Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-0053, Japan Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi 980-8579, Japan highl i ghts graphical a bstrac t Sulfidogenesis was essential to the UASB operation and process stability. Reactor showed the high stability at COD/SO ratios P2 with efficient removal of COD and sulfate. Sulfidogenesis promoted propionate degradation and acetoclastic methanogenesis. Excessive sulfidogenesis suppressed methanogenesis, deteriorating bioenergy conversion. article i nfo abstract Article history: A lab-scale upflow anaerobic sludge blanket (UASB) has been run for 250 days to investigate the influence Received 9 March 2016 of influent COD/SO ratios on the biodegradation behavior of starch wastewater and process perfor- Received in revised form 10 April 2016 2 mance. Stepwise decreasing COD/SO ratio enhanced sulfidogenesis, complicating

Journal

Bioresource TechnologyElsevier

Published: Aug 1, 2016

References

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