外加电压改善微生物电解池内稻秸同步酶解发酵产氢性能

该文以稻草秸秆等为原料研究了微生物电解池（microbial electrolysis cell,MEC）内外加电压（0、0.4、0.6、0.8、1.0 V）对木质纤维素同步酶解发酵产氢特性的影响,得到MEC利用木质纤维素产氢的最优电压,实现可再生资源综合利用与清洁能源开发的双重目的。试验结果表明,MEC的产氢速率、产氢得率、基质消减量及总能量得率皆呈逐渐增加的趋势,但相对电能消耗的能量得率则呈逐渐下降的趋势。当外加电压为0.4 V时,得到试验条件下最大的相对电能消耗的能量得率（377.59%）,当外加电压为1 V时获得最大的氢气产量为44.8 m L和总能量得率2.84%;在发酵产氢过程中,...

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Published in农业工程学报 Vol. 32; no. 24; pp. 234 - 239
Main Author 王永忠 董亮 左勇 胥腾飞 茹志鹏
Format Journal Article
LanguageChinese
Published 重庆大学生物工程学院,重庆,400030%四川理工学院生物工程学院,自贡,643000%重庆美的通用制冷设备有限公司,重庆,401336 2016
Subjects
发酵
同步酶解发酵
微生物电解池
生物制氢
电压
秸秆
秸秆
microbial electrolysis cell
生物制氢
微生物电解池
电压
fermentation
同步酶解发酵
simultaneous saccharification fermentation
straw
发酵
voltage
biohydrogen production
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Summary:该文以稻草秸秆等为原料研究了微生物电解池（microbial electrolysis cell,MEC）内外加电压（0、0.4、0.6、0.8、1.0 V）对木质纤维素同步酶解发酵产氢特性的影响,得到MEC利用木质纤维素产氢的最优电压,实现可再生资源综合利用与清洁能源开发的双重目的。试验结果表明,MEC的产氢速率、产氢得率、基质消减量及总能量得率皆呈逐渐增加的趋势,但相对电能消耗的能量得率则呈逐渐下降的趋势。当外加电压为0.4 V时,得到试验条件下最大的相对电能消耗的能量得率（377.59%）,当外加电压为1 V时获得最大的氢气产量为44.8 m L和总能量得率2.84%;在发酵产氢过程中,阳极室p H值呈先逐渐下降后略上升的趋势,有机酸分析测试表明,在MEC内的发酵产氢为丁酸发酵型。本研究对探索MEC内木质纤维素原料的同步酶解发酵产氢,提高纤维素基质酶解糖化和发酵产氢效率具有一定的指导意义。
Bibliography:11-2047/S
Wang Yongzhong1, Dong Liang2, Zuo Yong2, Xu Tengfei3, Ru Zhipeng3 （1. School of Bioengineering, Chongqing University, Chongqing 400030, China; 2. School of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, China; 3. Chongqing Midea General Refrigeration Equipment Co. Ltd., Chongqing 401336, China）
In this work,the effects of applied voltages on the characteristics of hydrogen production were investigated by the simultaneous saccharification and fermentation of rice straw in a fabricated microbial electrical cell（MEC） with 2 chambers,and the hydrogen production performance and conversion efficiency of cellulosic material were analyzed.The chambers of anode and cathode in this MEC were 2 concentric cylinders,and the inner one was anode chamber and the external one was cathode chamber.The gross volume of this reactor was 460 mL with 98 mL working volume in anode chamber and 260 mL working volume in cathode chamber.The carbon cloth fixed around the external wall of anode chambe
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2016.24.031