Degradation of dark fermentation effluents for biogas production using bioelectrochemical systems
LU Jian-hong1,2, LI Zhuo1,2, SUN Chi-He1,2, FU Qian1,2, LI Jun1,2, ZHANG Liang1,2, LIAO Qiang1,2, ZHU Xun1,2
1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China;
2. Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, China
Dark fermentation for H2 production was a promising bioenergy, as it could use straw and/or wastewater containing high organics as raw materials. The accumulated volatile fatty acids (VFAs), which were produced during the process of hydrogen fermentation, significantly inhibit the process of hydrogen production in the dark fermentation. Herein, bioelectrochemical system (BES) was used to treat the effluent of dark fermentation. A microbial electrolysis cell (MEC) was firstly used to treat the effluents of dark fermentation. Accompanied with hydrogen production in MEC, the pH value of the effluents increased from 4.5 to 8.7. Then the near-neutral effluents were used for methane production using a single-chamber microbial electrosynthesis system (MES), in which methanogens acted as biocatalysts to reduce CO2 to CH4. The results showed that the chemical oxygen demand (COD) removal efficiency and CH4 production rate of single-chamber MES were 89% and 4.5mmol/(L×d), respectively, significantly higher than that without any treatment.
卢建宏, 李卓, 孙驰贺, 付乾, 李俊, 张亮, 廖强, 朱恂. 耦合发酵产氢尾液处理的微生物电化学系统研究[J]. 中国环境科学, 2019, 39(10): 4157-4163.
LU Jian-hong, LI Zhuo, SUN Chi-He, FU Qian, LI Jun, ZHANG Liang, LIAO Qiang, ZHU Xun. Degradation of dark fermentation effluents for biogas production using bioelectrochemical systems. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(10): 4157-4163.
Zhang D, Wang J, Lin Y, et al., Present situation and future prospect of renewable energy in China[J]. Renewable and Sustainable Energy Reviews, 2017,76:865-871.
[2]
Chu S, Majumdar A, Opportunities and challenges for a sustainable energy future[J]. Nature, 2012,488(7411):294-303.
[3]
刘晶晶,孙永明,孔晓英,等.不同接种条件下微生物燃料电池产电特性分析[J]. 中国环境科学, 2011,31(10):1651-1656. Liu J J, Sun Y M, Kong X Y, et al. Power-generation performance of microbial fuel cells with different inoculations[J]. China Environmental Science, 2011,31(10):1651-1656.
[4]
冯雅丽,于莲,李浩然,等.微生物燃料电池降解焦化废水过程研究[J]. 中国环境科学, 2018,38(11):4099-4105. Feng Y L, Yu L, Li H R, et al. The degradation process of coking wastewater by microbial fuel cells[J]. China Environmental Science, 2018,38(11):4099-4105.
[5]
Kumar G, Shobana S, Nagarajan D, et al., Biomass based hydrogen production by dark fermentation-recent trends and opportunities for greener processes[J]. Current Opinion in Biotechnology, 2018,50:136-145.
[6]
Seifert K, Zagrodnik R, Stodolny M, et al., Biohydrogen production from chewing gum manufacturing residue in a two-step process of dark fermentation and photofermentation[J]. Renewable Energy, 2018,122:526-532.
[7]
Himmel M E, Ding S-Y, Johnson D K, et al., Biomass recalcitrance:engineering plants and enzymes for biofuels production[J]. Science, 2007,315(5813):804-807.
[8]
Hwang M H, Jang N J, Hyun S H, et al., Anaerobic bio-hydrogen production from ethanol fermentation:the role of pH[J]. Journal of Biotechnology, 2004,111(3):297-309.
[9]
Chen Y, Cheng J J, Creamer K S. Inhibition of anaerobic digestion process:a review[J]. Bioresource Technology, 2008,99(10):4044-4064.
[10]
Hanaki K, Hirunmasuwan S, Matsuo T, Protection of methanogenic bacteria from low pH and toxic materials by immobilization using polyvinyl alcohol[J]. Water Research, 1994,28(4):877-885.
[11]
Cai W, Han T, Guo Z, et al. Methane production enhancement by an independent cathode in integrated anaerobic reactor with microbial electrolysis[J]. Bioresource Technology, 2016,208:13-18.
[12]
Ghimire A, Valentino S, Frunzo L, et al. Biohydrogen production from food waste by coupling semi-continuous dark-photofermentation and residue post-treatment to anaerobic digestion:A synergy for energy recovery[J]. International Journal of Hydrogen Energy, 2015,40(46):16045-16055.
[13]
Tao B, Passanha P, Kumi P, et al. Recovery and concentration of thermally hydrolysed waste activated sludge derived volatile fatty acids and nutrients by microfiltration, electrodialysis and struvite precipitation for polyhydroxyalkanoates production[J]. Chemical Engineering Journal, 2016,295:11-19.
[14]
Dou Z, Dykstra C M, Pavlostathis S G. Bioelectrochemically assisted anaerobic digestion system for biogas upgrading and enhanced methane production[J]. Science of the Total Environment, 2018,633:1012-1021.
[15]
Park J, Lee B, Tian D, et al. Bioelectrochemical enhancement of methane production from highly concentrated food waste in a combined anaerobic digester and microbial electrolysis cell[J]. Bioresource Technology, 2018,247:226-233.
[16]
Rabaey K, Rozendal R A. Microbial electrosynthesis-revisiting the electrical route for microbial production[J]. Nature Reviews Microbiology, 2010,8(10):706-716.
[17]
Balch W, Fox G, Magrum L, et al. Methanogens:reevaluation of a unique biological group[J]. Microbiological reviews, 1979,43(2):260.
[18]
Nichols E M, Gallagher J J, Liu C, et al. Hybrid bioinorganic approach to solar-to-chemical conversion[J]. Proceedings of the National Academy of Sciences of the United States of America, 2015,112(37):11461-11466.
[19]
Findlay R H, King G M, Watling L. Efficacy of phospholipid analysis in determining microbial biomass in sediments[J]. Applied and Environmental Microbiology, 1989,55(11):2888-2893.
[20]
Lee Y J, Miyahara T, Noike T. Effect of pH on microbial hydrogen fermentation[J]. Journal of Chemical Technology & Biotechnology, 2002,77(6):694-698.
[21]
Jourdin L, Freguia S, Donose B C, et al. Autotrophic hydrogen-producing biofilm growth sustained by a cathode as the sole electron and energy source[J]. Bioelectrochemistry, 2015,102:56-63.
[22]
Katuri K, Ferrer M L, Gutiérrez M C, et al. Three-dimensional microchanelled electrodes in flow-through configuration for bioanode formation and current generation[J]. Energy & Environmental Science, 2011,4(10):4201.