Insights into biodegradation behaviors of methanolic wastewater in up-flow anaerobic sludge bed (UASB) reactor coupled with in-situ bioelectrocatalysis

被引：15

作者：

Gao, Yijing ^{[1
]}

Cai, Teng ^{[1
]}

Yin, Jian ^{[1
]}

Li, Huan ^{[1
]}

Liu, Xinyu ^{[1
]}

Lu, Xueqin ^{[1
,2
,3
,8
]}

Tang, Hongxia ^{[4
]}

Hu, Weijie ^{[5
]}

Zhen, Guangyin ^{[1
,3
,6
,7
]}

机构：

[1] East China Normal Univ, Sch Ecol & Environm Sci, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Shanghai 200241, Peoples R China

[2] Inst Ecochongming IEC, 3663 N Zhongshan Rd, Shanghai 200062, Peoples R China

[3] Shanghai Engn Res Ctr Biotransformat Organ Solid W, Shanghai 200241, Peoples R China

[4] Shanghai Solid Waste & Chem Management Ctr, 55 Sanjiang Rd, Shanghai, Xuhui Dist, Peoples R China

[5] Shanghai Municipal Engn Design Inst Grp Co Ltd, Shanghai 200092, Peoples R China

[6] Shanghai Inst Pollut Control & Ecol Secur, 1515 North Zhongshan Rd 2, Shanghai 200092, Peoples R China

[7] Minist Nat Resources, Technol Innovat Ctr Land Spatial Ecorestorat Metro, 3663 N Zhongshan Rd, Shanghai 200062, Peoples R China

[8] East China Univ, Sch Ecol & Environm Sci, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Dongchuan Rd 500, Shanghai 200241, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 376卷

基金：

中国国家自然科学基金;

关键词：

Anaerobic granular sludge; Bioelectrochemistry; Electron transfer; Extracellular polymeric substances; Methanol; MICROBIAL ELECTROLYSIS CELL; PERFORMANCE; DIGESTION; MEC; GRANULATION; GENERATION; AD;

D O I：

10.1016/j.biortech.2023.128835

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Granular sludge disintegration and washing out pose a challenge to up-flow anaerobic sludge bed (UASB) reactor treating methanolic wastewater. Herein, in-situ bioelectrocatalysis (BE) was integrated into UASB (BE-UASB) reactor to alter microbial metabolic behaviors and enhance the re-granulation process. BE-UASB reactor exhibited the highest methane (CH4) production rate of 388.0 mL/Lreactor/d and chemical oxygen demand (COD) removal of 89.6 % at 0.8 V. Sludge re-granulation was strengthened with particle size over 300 mu m of up to 22.4%. Bioelectrocatalysis stimulated extracellular polymeric substances (EPS) secretion and formation of granules with rigid [-EPS-cell-EPS-] matrix by enhancing the proliferation of key functional microorganisms

引用

页数：10

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