Abstract
In order to find high quality and low price hydrogen catalyst, a scrap metal net was used as single-chamber microbial electrolytic cell (MEC) cathode, and its hydrogen production performance was investigated at different applied voltages. Meanwhile, the microbial community structures of original aerobic activated sludge, MFC and MEC anode microbes were analyzed by 16S rDNA amplicon sequencing technology. As the applied voltage increased, the maximum current density was increased and the running time was shortened. At an applied voltage of 0.7 V, the hydrogen production and electrical energy efficiency obtained with scrap metal mesh cathode MEC were, respectively, 0.330±0.012 m3H2·m-3·d-1 and 177.0±5.6%, which were much higher than those at 0.5 V, but similar to those at 0.9V. The performance of waste metal mesh cathode MEC was comparable to that of Pt/C cathode MEC, and had good durability. The results of 16S rDNA amplicon sequencing showed that the culture environment had a great influence on the enrichment and elimination of microorganisms. Geobacter, the dominant bacterium of MEC anode, was extremely enriched in the applied electric field environment with a relative abundance of more than 79.4%.
Graphical Abstract
Keywords
scrap metal net, microbial electrolytic cell, hydrogen-producing performance, 16S rDNA amplicon sequencing
Publication Date
2019-12-28
Online Available Date
2019-01-28
Revised Date
2018-11-19
Received Date
2018-10-10
Recommended Citation
Hong-yan DAI, Hui-min YANG, Xian LIU, Xiu-li SONG, Zhen-hai LIANG.
Hydrogen Production of Microbial Electrolysis Cell Using Scrap Metal Net as Cathode and the Analysis of Microbial Community Structure in Anode[J]. Journal of Electrochemistry,
2019
,
25(6): 773-780.
DOI: 10.13208/j.electrochem.181010
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol25/iss6/15
References
[1] Logan B E, Call D, Cheng S, et al. Microbial electrolysis cells for high yield hydrogen gas production from organic matter[J]. Environmental Science and Technology, 2008, 42
(23): 8630-8640.
[2] Kundu A, Sahu J N, Redzwan G, et al. An overview of cathode material and catalysts suitable for generating hydrogen in microbial electrolysis cell[J]. International Journal of Hydrogen Energy, 2013, 38(4): 1745-1757.
[3] Wang A J, Liu W Z, Ren N Q, et al. Key factors affecting microbial anode potential in a microbial electrolysis cell for H2 production[J]. International Journal of Hydrogen Energy, 2010, 35(24): 13481-13487.
[4] Freguia S, Rabaey K, Yuan Z, et al. Non-catalyzed cathodic oxygen reduction at graphite granules in microbial fuel cells[J]. Electrochimica Acta, 2007, 53: 598 -603.
[5] Selembo P A, Merrill M D, Logan B E. The use of stainless steel and nickel alloys as low-cost cathodes in microbial electrolysis cells[J]. Journal of Power Sources, 2009, 190(2): 271-278.
[6] Su M, Wei L L, Qiu Z Z, et al. Hydrogen production in single chamber microbial electrolysis cells with stainless steel fiber felt cathodes[J]. Journal of Power Sources, 2016, 301: 29-34.
[7] Lu L, Hou D X, Fang Y F, et al. Nickel based catalysts for highly efficient H2 evolution from wastewater in microbial electrolysis cells[J]. Electrochimica Acta, 2016, 206: 381-387.
[8] Cai W W, Liu W Z, Han J L, et al. Enhanced hydrogen production in microbial electrolysis cell with 3D self-assembly nickel foam-graphene cathode[J]. Biosensors and Bioelectronics, 2016, 80: 118-122.
[9] Tokash J C, Logan B E. Electrochemical evaluation of molybdenum disulfide as a catalyst for hydrogen evolution in microbial electrolysis cells[J]. Internationnal Journal of Hydrogen Energy, 2011, 36(16): 9439-9445.
[10] Dai H Y(代红艳), Yang H M(杨慧敏), Liu X(刘宪), et al. Preparation and electrochemical evaluation of MoS2/graphene as a catalyst for hydrogen evolution in microbial electrolysis cell[J]. Chemical Journal of Chinese Universities(高等学校化学学报), 2018, 39(2): 351-358.
[11] Dai H Y, Yang H M, Liu X, et al. Electrochemical evaluation of nano-Mg(OH)2/graphene as a catalyst for hydrogen evolution in microbial electrolysis cell[J]. Fuel, 2016, 174: 251-256.
[12] Harnisch F, Sievers G, Schroder U. Tungsten carbide as electrocatalyst for the hydrogen evolution reaction in pH neutral electrolyte solutions[J]. Applied Catalysis B: Environmental, 2009, 89: 455-458.
[13] Xiao L, Wen Z H, Ci S Q, et al. Carbon/iron-based nano-rod catalysts for hydrogen production in microbial electrolysis cells[J]. Nano Energy, 2012, 1(5): 751-756.
[14] Li F J, Liu W F, Sun Y, et al. Enhancing hydrogen production with Ni-P coated nickel foam as cathode catalyst in single chamber microbial electrolysis cells[J]. Internationnal Journal of Hydrogen Energy, 2017, 42(6): 3641-3646.
[15] Wang A J, Liu W Z, Cheng S A, et al. Source of methane and methods to control its formation in single chamber microbial electrolysis cells[J]. Internationnal Journal of Hydrogen Energy, 2009, 34(9): 3653-3658.
[16] Sun R(孙睿). Hydrogen and methane production from excess sludge in MEC and the analysis of microbial structure[D]. Harbin: Harbin Institute of Technology, 2015.
[17] Wang X C(王兴春), Yang Z R(杨致荣), Wang M(王敏), et al. High throughput sequencing technology and its application[J]. Chinese Journal of Bioengineering(中国生物工程杂志), 2012, 32(1): 109-114.
[18] Lu L, Xing D F, Ren N Q. Pyrosequencing reveals highly diverse microbial communities in microbial electrolysis cells involved in enhanced H2 production from waste activated sludge[J]. Water Research, 2012, 46(7): 2425-2434.
[19] Wang K, Sheng Y X, Cao H B, et al. Impact of applied current on sulfate-rich wastewater treatment and microbial biodiversity in the cathode chamber of microbial electrolysis cell (MEC) reactor[J]. Chemical Engineering Journal, 2017, 307: 150-158.
[20] Dai H Y(代红艳). Preparation and energy generation of cathodic electron acceptors and catalysts in bio-electrochemical system[D]. Taiyuan: Taiyuan University of Technology，2017.
[21] Sun C Y(孙彩玉). The performance of BES using waste-water treatment with energy recovery and analysis of microbial stracture[D]. Harbin: Northeast Forestry University, 2016.
[22] Wrighton K C, Agbo P, Warnecke F, et al. A novel ecological role of the Firmicutes identified in thermophilic microbial fuel cell[J]. ISME Journal, 2008, 2(11): 1146-1156.
[23] Quan X C, Quan Y P, Tao K. Effect of anode aeration on the performance and microbial community of an air-cathode microbial fuel cell[J]. Chemical Engineering Journal, 2012, 210: 150-156.
[24] Logan B E. Exoelectrogenic bacteria that power microbial fuel cells[J]. Nature Reviews Microbiology, 2009, 7(5): 375-381.
[25] Laura Rago L, Yolanda Ruiz Y, Baeza J A, et al. Microbial community analysis in a long-term membrane-less microbial electrolysis cell with hydrogen and methane production[J]. Bioelectrochemistry, 2015, 106: 359-368.
[26] Wu B G(吴保国). Bioanode extracellular electron transfer and mechanism of enhanced current production from phenol[D]. Guangdong: South China University of Technology, 2015.
