Enhancement of acidogenic fermentation for volatile fatty acid production from food waste: Effect of redox potential and inoculum

被引：111

作者：

Yin, Jun ^{[1
,2
]}

Yu, Xiaoqin ^{[1
,2
]}

Zhang, Yeer ^{[1
]}

Shen, Dongsheng ^{[1
,2
]}

Wang, Meizhen ^{[1
,2
]}

Long, Yuyang ^{[1
,2
]}

Chen, Ting ^{[1
,2
]}

机构：

[1] Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou 310012, Zhejiang, Peoples R China

[2] Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou 310012, Zhejiang, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 216卷

关键词：

Redox potential; 2-Bromoethanosulfophate; Volatile fatty acids; Microbial community; Firmicutes; ANAEROBIC CO-DIGESTION; MICROBIAL COMMUNITY; BROWN WATER; REACTOR; PH; 2-BROMOETHANESULFONATE; DECHLORINATION; PRETREATMENT; TEMPERATURE; BIOREACTORS;

D O I：

10.1016/j.biortech.2016.06.053

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study was to explore the effects of redox potential (ORP) and inoculum on volatile fatty acids (VFAs) production from food waste by acidogenic fermentation. Four experimental conditions with two ORP levels were tested: limited aeration conditions with ORP level of -100 to -200 mV inoculating anaerobic sludge (LA + AnS) or aerobic sludge (LA + AeS), and anaerobic conditions with ORP level of -200 to -300 mV inoculating anaerobic sludge with 2-bromoethanosulfophate (AN + BES) and without BES (AN). The maximal VFA yield (0.79 g COD/g VS) was attained in LA + AnS reactor due to enhanced hydrolysis of substrates, especially proteins (degradation efficiency 78.3%). A higher frequency of phylum Firmicutes under limited aeration conditions (42.2-48.2%) was observed than that under anaerobic conditions (21.1%). The microbial community was more diverse in LA + AnS reactors than LA + AeS. We conclude that appropriate ORP level (from -100 to -200 mV) and inoculum play essential roles in VFA production. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：996 / 1003

页数：8

共 33 条

[1]

[Anonymous], 2006, STANDARD METHODS EXA, DOI DOI 10.5860/CHOICE.37-2792

[2]

Botheju D., 2011, The Open Waste Management Journal, V4, P1, DOI 10.2174/1876400201104010001

[3] Polyhydroxyalkanoate production from fermented volatile fatty acids: Effect of pH and feeding regimes [J].

Chen, Hong ;

Meng, Huijuan ;

Nie, Zuchao ;

Zhang, Mingmei .

BIORESOURCE TECHNOLOGY, 2013, 128 :533-538

[4] 2-bromoethanesulfonate affects bacteria in a trichloroethene-dechlorinating culture [J].

Chiu, PC ;

Lee, M .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2001, 67 (05) :2371-2374

[5] Enhanced solubilisation of the residual fraction of municipal solid waste [J].

Cirne, D. G. ;

Agbor, V. B. ;

Bjoernsson, L. .

WATER SCIENCE AND TECHNOLOGY, 2008, 57 (07) :995-1000

[6] A review of dark fermentative hydrogen production from biodegradable municipal waste fractions [J].

De Gioannis, G. ;

Muntoni, A. ;

Polettini, A. ;

Pomi, R. .

WASTE MANAGEMENT, 2013, 33 (06) :1345-1361

[7] Effect of microaerobic conditions on the degradation kinetics of cellulose [J].

Diaz, I. ;

Donoso-Bravo, A. ;

Fdz-Polanco, M. .

BIORESOURCE TECHNOLOGY, 2011, 102 (21) :10139-10142

[8]

Duangmanee T., 2009, Micro -Aeration for Hydrogen Sulfide Removal from Biogas

[9] Enzyme activities under anaerobic and aerobic conditions inactivated sludge sequencing batch reactor [J].

Goel, R ;

Mino, T ;

Satoh, H ;

Matsuo, T .

WATER RESEARCH, 1998, 32 (07) :2081-2088

[10] Chain elongation of acetate and ethanol in an upflow anaerobic filter for high rate MCFA production [J].

Grootscholten, T. I. M. ;

Steinbusch, K. J. J. ;

Hamelers, H. V. M. ;

Buisman, C. J. N. .

BIORESOURCE TECHNOLOGY, 2013, 135 :440-445

← 1 2 3 4 →