Study on the enhancement of methane performance by the acetate stress

摘要：

　　In this study,sodium acetate was used to stress the methane generation microorganism,in order to enhance the acid tolerance of sludge and improve the methane generation.The methanogenic sludge was domesticated by gradual increasing the concentration of sodium acetate.The concentration of sodium acetate was 0,2,3,4,5 and 6 g/L,respectively.The results showed that the methane production and dehydrogenase activity were increased by the stressed sludge,5 g/L was the optimum concentration for the stress.The concentration of organic acids (except acetic acid) in each group showed a decreasing trend.The methane yield from the effluent of hydrogen was 173.4 mL/gCOD,the COD and carbohydrate degradation rate was 40.5%,53.6%,respectively,and the dehydrogenase activity reached 183.0 μg/(mL·h).

关键词： Food waste anaerobic digestion methane stress

作者: Mingxing Zhao Changhui Gao Hao Wang Wenquan Ruan

作者单位: School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122,China;Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122,China

会议类型: 国际会议

会议名称: The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)

会议地点: 北京

会议语种:英文

页码: 317-320

在线出版日期: 2017-10-17（万方平台首次上网日期，不代表论文的发表时间）