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《Chinese Journal of Environmental Engineering》 2018-09
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Effect of limonite and solid content on dry anaerobic co-fermentation of rice straw and manure

WANG Chen;XU Lifeng;DONG Dingshuo;CAO Yong;FAN Wenrui;ZHANG Linyi;YUE Zhengbo;PENG Shuchuan;WANG Jin;School of Resources and Environmental Engineering,Hefei University of Technology;  
Dry anaerobic fermentation was one of the effective ways to deal with agricultural waste. The total solid(TS) content and exogenous additives were the important factors affecting the process of methane production.Therefore, in the process of mixed anaerobic dry fermentation of cow manure and straw, the influences of different limonite addition and TS content on the methane-production process were investigated, and the characteristics of biogas residue were characterized as well. The results showed that when the content of TS was 25%, the addition of 1% limonite(based on the content of substrate TS) significantly promoted the methane-producing process, the gas production volume increased by 21 m L·g~(-1)(based on VS) compared with the control group. Furthermore, in the control group(no limonite) and the group with 1% limonite addition, cellulose degradation was decreased with the increase of TS content. When TS content was 40%, the addition of 1% limonite had inhibitory effect on methane-producing process, and the yield of methane was 71% lower than that of the control group(25% TS content).
【Fund】: 中央高校基本科研项目(JZ2016YYPY0043);; 国家级大学生创新创业训练计划项目(201610359057)
【CateGory Index】: X71
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