BIOAUGMENTATION OF CORN STALKS FERMENTATION BY ANAEROBIC BENZOATE-DEGRADING BACTERIUM <i>SPOROTOMACULUM SYNTROPHICUM</i>

ZHU Xin-yu; ZHANG Jie; SUN Xiao-jiao; CHEN Guang-hui; WANG Xiao-xia; ZHANG Pei-yu; QIU Yan-ling

doi:10.13205/j.hjgc.202205011

Volume 40 Issue 5

Jul. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(5): 75-81

ZHU Xin-yu, ZHANG Jie, SUN Xiao-jiao, CHEN Guang-hui, WANG Xiao-xia, ZHANG Pei-yu, QIU Yan-ling. BIOAUGMENTATION OF CORN STALKS FERMENTATION BY ANAEROBIC BENZOATE-DEGRADING BACTERIUM SPOROTOMACULUM SYNTROPHICUM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 75-81. doi: 10.13205/j.hjgc.202205011

Citation:

ZHU Xin-yu, ZHANG Jie, SUN Xiao-jiao, CHEN Guang-hui, WANG Xiao-xia, ZHANG Pei-yu, QIU Yan-ling. BIOAUGMENTATION OF CORN STALKS FERMENTATION BY ANAEROBIC BENZOATE-DEGRADING BACTERIUM SPOROTOMACULUM SYNTROPHICUM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 75-81. doi: 10.13205/j.hjgc.202205011

Citation:

ZHU Xin-yu, ZHANG Jie, SUN Xiao-jiao, CHEN Guang-hui, WANG Xiao-xia, ZHANG Pei-yu, QIU Yan-ling. BIOAUGMENTATION OF CORN STALKS FERMENTATION BY ANAEROBIC BENZOATE-DEGRADING BACTERIUM SPOROTOMACULUM SYNTROPHICUM[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 75-81. doi: 10.13205/j.hjgc.202205011

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BIOAUGMENTATION OF CORN STALKS FERMENTATION BY ANAEROBIC BENZOATE-DEGRADING BACTERIUM SPOROTOMACULUM SYNTROPHICUM

doi: 10.13205/j.hjgc.202205011

1. School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
2. Linyi Vocational College of Science and Technology, Linyi 276000, China

Received Date: 2021-09-04
Available Online: 2022-07-02

Abstract

Abstract

The degradation of lignin is an effective way to improve the biogas fermentation efficiency of lignocellulosic materials, such as straw. For anaerobic microorganisms, lignin is difficult to use, however, recent studies indicated that lignin can be decomposed and utilized by microorganisms through aromatic compounds such as benzoate and phenol. The effect of bioaugmentation with a benzoate-degrading bacterium Sporotomaculum syntrophicum strain FB on the anaerobic corn stalk fermentation was evaluated by batch experiments. The results showed that when the inoculation ratio of S. syntrophicum was 5%, 10%, and 20%, the methane yields were 252.2, 244.9, 234.8 mL/g TS respectively, increased by 20.5%, 17.0%, 12.2% comparing with the control. TS removal rates increased by 2.9%, 3.1%, and 3.4%, respectively. The removal rates of cellulose, hemicellulose and lignin increased by 12%~13%, 3%~5% and 38%~46%, respectively, with the addition of 5%~20% S. syntrophicum. The further experiment verified that the addition of S. syntrophicum could improve the methane yields of methyl cellulose, xylan, and alkali lignin(models for cellulose, hemicelluloses, and lignin, respectively) by 15.7%, 11.4%, 7.8%.
- bioaugmentation,
- corn stalk,
- anaerobic fermentation,
- lignin,
- Sporotomaculum syntrophicum

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References(20)

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