Electrical stimulation enhanced denitrification of nitrite-dependent anaerobic methane-oxidizing bacteria
1.Introduction Nitrite-dependent anaerobic methane oxidation (n-damo) is a novel denitrification process,with methane as the electron donor and nitrite as the electron acceptor under anaerobic condition.It could use methane produced by anaerobic wastewater treatment process in situ,which is potentially energy-efficient.However,n-damo process suffers from low activity and growth rate of n-damo bacteria.To date,many efforts have been made to improve n-damo process,but electrical stimulation method was neglected.Bioelectrical reactor (BER) is an effective method to stimulate microbial metabolism by electric field.In this study,n-damo culture was cultivated in a BER to identify the effect of electrical stimulation on n-damo process.Voltages were adjusted to investigate its effect on microbial activity.On this basis,continuous and intermittent exposure modes were studied to determine an optimum operation condition.
nitrite-dependent anaerobic methane-oxidizing (n-damo) bacteria electrical stimulation bioelectrical reactor (BER)
Qing Wu Jiali Chang Xiaoxu Yan Nuerla Ailijiang Qiuxiang Fan Shenghui Wang Peng Liang Xiaoyuan Zhang Xia Huang
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment,Tsinghua University, Beijing 100084, China
国际会议
北京
英文
183-184
2015-11-02（万方平台首次上网日期，不代表论文的发表时间）