Effect of Iron Modified Biochar on Anaerobic Digestion Enhancement of Brewery Wastewater
YE Junpei1,2, ZHANG Panyue2, XIAN Guang3, ZHANG Guangming3
1 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining & Technology, Beijing 100083 ; 2 College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083; 3 School of Environment and Resource, Renmin University of China, Beijing 100872;
Abstract: A large amount of high COD wastewater produced with the beer production process must be effectively treated to meet standard requirements before discharge or recycle. The wastewater treatment is of great concern before discharge into the nature environment. In this study, the iron-modified biochar (Fe/C) and unmodified biochar (BC) was prepared with poplar wood chips under pyrolysis temperature of 550 ℃. The Fe/C and BC were applied to investigate the improvement of anaerobic digestion of brewery wastewater. The results showed that BC and Fe/C could shorten the methanogenic hysteresis period by 33%. The methanogenic logarithmic periods of BC and Fe/C were 40 h and 14 h respectively. Although the logarithmic phase of biogas production for BC was longer than Fe/C, the methanogenic rate of Fe/C in logarithmic phase was higher than BC, thus the final gas production of Fe/C was higher than that of BC. Compared with the control group, the cumulative biogas production of Fe/C and BC was increased by 81.36% and 70.28%, respectively. Fourier transform infrared spectroscopy (FT-IR) spectra showed that the obviously shift of aliphatic hydrocarbon functional groups in BC and Fe/C during anaerobic digestion, and the microorganisms was adsorbed on the biochar. The dissolution of ash in BC during the anaerobic digestion might be the reason for the improvement of gas production. Moreover, the iron oxides existed in the Fe/C also promoted the anaerobic digestion.
1 Liu Jianwen, Liu Wenhua, Liu Fen, et al. Treatment of brewage wastewater with anaerobic-semi-anaerobic-aerobic technique[J]. Journal of Xiangtan Mining Institute,2004,19(1):92(in Chinese). 刘建文,刘文华,刘芬,等.厌氧-缺氧-好氧工艺处理高浓度啤酒废水[J].湘潭矿业学院学报,2004,19(1):92. 2 Luo C, Lu F, Shao L, et al. Application of eco-compatible biochar in anaerobic digestion to relieve acid stress and promote the selective colonization of functional microbes [J]. Water Research,2015,68:710. 3 Feng Y, Zhang Y, Quan X, et al. Enhanced anaerobic digestion of waste activated sludge digestion by the addition of zero valent iron [J]. Water Research,2014,52:242. 4 Jia Tongtong, Wang Zaizhao, Geng Fenghua, et al. Effect of Fe3O4 nanoparticles on anaerobic biogas production [J]. Journal of Environmental Engineering Technology,2017,7(2):201(in Chinese). 贾通通,王在钊,耿凤华,等.纳米Fe3O4对污泥厌氧产沼气性能的影响[J].环境工程技术学报,2017,7(2):201. 5 Shi Changbo, Wang Jin, Peng Shuchuan, et al. Fe3+ enhanced anaerobic digestion process of corn straw [J]. Transactions of the Chinese Society of Agricultural Engineering,2012,29(13):218(in Chinese). 时昌波,王进,彭书传,等.三价铁离子促进玉米秸秆厌氧发酵[J].农业工程学报,2013,29(13):218. 6 Pan Junting, Qiu Ling, Hassanein A A M, et al. Orthogonal experiment on biogas production characteristics of chicken manure with biochar [J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(12):229(in Chinese). 潘君廷,邱凌,Hassanein A A M,等.生物炭添加对鸡粪厌氧消化产气特性的影响[J].农业机械学报,2014,45(12):229. 7 Zhao Z, Zhang Y, Holmes D E, et al. Potential enhancement of direct interspecies electron transfer for syntrophic metabolism of pro-pionate and butyrate with biochar in up-flow anaerobic sludge blanket reactors [J]. Bioresource Technology,2016,209:148. 8 Yu D, Liu J, Sui Q, et al. Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater [J]. Bioresource Technology,2015,203:62. 9 Tang G L, Huang J, Sun Z J, et al. Biohydrogen production from cattle wastewater by enriched anaerobic mixed consortia: Influence of fermentation temperature and pH [J]. Journal of Bioscience & Bioengineering,2008,106(1):80.10 Ho L, Ho G. Mitigating ammonia inhibition of thermophilic anaerobic treatment of digested piggery wastewater: Use of pH reduction, zeolite, biomass and humic acid [J]. Water Research,2012,46(14):4339. 11 Qin Zhiyong,Ma Ding, Yue Zhengbo. Effects of carbonate-sulfate calcium minerals on the anaerobic methanogenic process of brewery wastewater [J]. Journal of Anhui Agricultural University,2017,44(5):829(in Chinese). 秦志勇,马丁,岳正波.碳酸盐-硫酸盐含钙矿物对啤酒废水厌氧产甲烷过程的影响[J].安徽农业大学学报,2017,44(5):829. 12 Demirel B, Scherer P. Trace element requirements of agricultural biogas digesters during biological conversion of renewable biomass to methane [J]. Biomass & Bioenergy,2011,35(3):992. 13 Ma Jinlian. Magnetite promote anaerobic degradation of organic matters [D]. Guangzhou: Graduate University of Chinese Academy of Sciences (Guangzhou Institute of Geochemistry),2016(in Chinese). 马金莲.磁铁矿促进有机质厌氧降解过程及微生物机制初探[D].广州:中国科学院研究生院(广州地球化学研究所),2016. 14 Bao Y, Ziyang L, Dongling Z, et al. Variations of organic matters and microbial community in thermophilic anaerobic digestion of waste activated sludge with the addition of ferric salts [J]. Bioresource Technology,2015,179:291. 15 Zhang Xiangming. Effect of sulfuide concentration on biochemical efficiency and biodesulfurization by oxidization [D]. Guangzhou: South China University of Technology,2014(in Chinese). 张祥明.S2-浓度对生化效率的影响及生物氧化除硫的研究[D].广州:华南理工大学,2014. 16 Zhang Jia, Sun Yongming, Lin Jinping, et al. Effect of Fe2+ on Anaerobic digestion of molasses alcohol wastewater [J]. Advances in New & Renewable Energy,2016,4(6):431(in Chinese). 张佳,孙永明,李金平,等.二价铁离子对糖蜜酒精废水厌氧发酵的影响[J].新能源进展,2016,4(6):431. 17 Andrew, Odeh O. Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks [J]. Journal of Fuel Chemistry and Technology,2015,43(2):129. 18 Russo C, Stanzione F, Tregrossi A, et al. Infrared spectroscopy of some carbon-based materials relevant in combustion: Qualitative and quantitative analysis of hydrogen [J]. Carbon,2014,74(8):127.
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2018, Vol. 32 
