Biogas production from microbial-alkali pretreated corn stover by solid-state anaerobic digestion

查看全文 作　　者：Zhao [1,3]Pengxiang;Cui [2]Fengjie;Bu [3]Lingxi;Jiang [1]Jianxin

机构地区：[1]Department of Chemistry and Chemical Engineering,Beijing Forestry University,Beijing 100083,China;[2]School of Food and Biological Engineering,Jiangsu University,Zhenjiang 212013,China;[3]Beijing Biomass Energy Technology Center,State Grid Energy Conservation Service Ltd.,Beijing 100053,China

出　　处：《International Journal of Agricultural and Biological Engineering》索引2015年第8卷第5期,共9页

基　　金：This work was financially supported by State Grid Science and Technology Program(No.SGECS 56-2014);China Ministry of Science and Technology(No.2014DFG32550);International Foundation for Science Grant Program(No.F 4930-1;F/4930-2F). 摘　　要：Corn stover pretreated by Ceriporiopsis subvermispora was used as substrate to enhance biogas production via solid state anaerobic digestion(SS-AD).Effects of temperature,inoculum volume and alkaline concentration on the biogas production profermance were investigated.The results showed that pretreatment of corn stover by C.subvermispora benefited the biogas production.The optimal conditions were temperature 35°C,inoculum 10:1(w/w)and adding 5.0%of alkali,under which the maximum productions were obtained for daily and cumulative biogas of 14.07 L/kg VS and 211.09 L/kg VS.During the SS-AD process,the total solids(TS)and volatile solid(VS)were significantly degraded.The volatile fatty acids(VFA)concentration increased to 106 mmol/L and alkalinity decreased by about 23%.The results collectively suggested that microbial-alkali pretreatment of corn stove combining mesophilic condition could be a promising way to produce biogas in SS-AD. 关键词：solid-state anaerobic digestion corn stover Ceriporiopsis subvermispora microbial-alkali pretreatment biogas production

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Biogas production from microbial-alkali pretreated corn stover by solid-state anaerobic digestion

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