The impact of anode acclimation method on microbial electrolysis cell treating anaerobic fermentation effluent
The impact of different anode acclimation methods for enhancing hydrogen production in microbial electrolysis cell (MEC) was investigated in this study.The anodes were first acclimated in microbial fuel cells using acetate,butyrate and corn stalk fermentation effluent (CSFE) as substrate before moving into MECs,respectively.Subsequently,CSFE was used as feedstock in all the three kind of MECs.The maximum hydrogen yield with the anode pre-acclimated with butyrate (5.21 ± 0.24 L H2/L CSFE) was higher than that pre-acclimated with acetate (4.22 ± 0.19 L H2/L CSFE) and corn stalk fermentation effluent (4.55-0.14 L H2/L CSFE).The current density (480 ± 11 A/m3) and hydrogen production rate (4.52 ± 0.13 m3/m3/d) with the anode pre-acclimated with butyrate were also higher that another two reactors.These results demonstrated that the anode biofilm pre-acclimated with butyrate has significant advantages in CSFE treatment and could improve the performance of hydrogen production in MEC.
Microbial electrolysis cell (MEC) Corn stalk fermentation effluent Pre-acclimation Hydrogen Butyrate Acetate
Xiaohu Li Irini Angelidaki Yifeng Zhang
Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
224-227
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）