Bioelectrochemical enhancement of hydrogen and methane production from the anaerobic digestion of sewage sludge in single-chamber membrane-free microbial electrolysis cells
Bioelectrochemical enhancement of hydrogen and methane production from the anaerobic digestion of sewage sludge in single-chamber membrane-free microbial electrolysis cells
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单室无膜微生物电解池中污水污泥厌氧消化生物电化学增强氢气和甲烷产量
DOI：
10.1016/j.ijhydene.2012.11.087
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发表时间：
2013-02-06
影响因子：
7.2
通讯作者：
Xiao, Benyi
中科院分区：
文献类型：
--
作者：
Guo, Xuesong;Liu, Junxin;Xiao, Benyi
通过批量试验研究了在单室无膜微生物电解池（MEC）和非MEC中厌氧消化污泥产生氢气和甲烷的生物电化学增强效果。所有反应器均由污泥厌氧消化产生氢气和甲烷。与对照组相比，在施加电压为1.4 V和1.8 V时，Ti/Ru电极的氢气产量分别提高了1.7-5.2倍，甲烷产量提高了11.4-13.6倍。大部分氢气在消化的前5天产生，大部分甲烷在消化后5天产生。在有水的对照试验中，沼气中没有检测到氧气，也没有检测到产氢。施加电压可以增强悬浮物和挥发性悬浮物的去除，增加可溶性化学需氧量的转化，加速挥发性脂肪酸的转化，并保持甲烷菌生长的最佳pH范围。版权所有(C) 2012，氢能源出版有限责任公司由爱思唯尔有限公司出版版权所有。
Batch tests were carried out to investigate the bioelectrochemical enhancement of hydrogen and methane production from the anaerobic digestion of sewage sludge in single-chamber membrane-free microbial electrolysis cells (MEC) and non-MECs. Hydrogen and methane were produced from the anaerobic digestion of sewage sludge in all reactors. Compared with controls, hydrogen production was enhanced 1.7-5.2-fold, and methane production 11.4-13.6-fold with Ti/Ru electrodes at applied voltages of 1.4 and 1.8 V, respectively. Most of hydrogen was produced in the first 5 days of digestion and most of methane was generated after 5 days. No oxygen was detected in the biogas and no hydrogen production was detected in the control test with water. The applied voltages can enhance the removal of suspended and volatile suspended solids, increase the transformation of soluble chemical oxygen demand, accelerate the conversion of volatile fatty acids and maintain an optimal pH range for methanogen growth. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.