Electricity generation from cattle dung using microbial fuel cell in acidification process of two-phase anaerobic digestion system
The microbial fuel cell (MFC) constructed by a modified Continuous Stirred Tank Reactor (CSTR) which was used as acidification-phase of two-phase anaerobic digestion system.The experiment was operated as batch mode at mesophilic condition (35 ℃) to evaluate continue voltage output using cattle dung as substrate in hydrolysis-acidification process.The results illustrated that electricity generation increased noticeably to 300mV after 3 days operation,reached 430mV after 20 days and stabilized electricity generation from 420mV to 470mV in the following 70 days.The pH decreased from 7.15 to 6.65 after 15 days operation and maintained stability from 6.4 to 6.8.The main components of VFA in anode chamber were acetic,propionic and butiric acids.The dominating VFA was acetic acid that predominated untile day 50 and the maximum propionic acid concentration was 15％ of total VFA.
Anaerobic digestion MFC acidogenic stage cattle dung
Zhao Guang Wei Li Ma Fang CHUA Hong Wang Zhe
State Key Lab of Urban Water Resource and Environment,School of Municipal and Environmental Engineer Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hong Kong,China
国际会议
哈尔滨
英文
286-290
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）