α-淀粉酶预处理对城市生活垃圾厌氧消化的影响研究  

Effect of Alpha-Amylase Pretreatment on Anaerobic Digestion of Municipal Solid Waste

作　　者：何娟[1] 孙可伟[1] 邹成鸿[1] 李建昌[1] 申屠良义[2] 张剑波[1] 

机构地区：[1]昆明理工大学废弃物资源化国家工程研究中心,云南昆明650093 [2]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《安徽农业科学》2010年第27期15166-15168,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究α-淀粉酶预处理城市生活垃圾后对厌氧消化产气和产甲烷的影响。[方法]采用单因素试验方法,用不同α-淀粉酶添加量、水解温度、水解时间和底物浓度预处理城市生活垃圾,考察经过预处理后的生活垃圾再进行中温厌氧消化对产气和产甲烷情况的影响。[结果]通过α-淀粉酶预处理后比不经过任何处理的效果更显著,且得到利用α-淀粉酶预处理城市生活垃圾来强化厌氧消化的适宜条件为:酶用量100U/gVS、水解温度50℃、水解时间1h、底物浓度为8%。[结论]试验为进一步优化厌氧消化工艺提供了基础数据。[Objective] To observe aerogenesis and methanogenesis of municipal solid waste during anaerobic digestion after alpha-amylase pretreatment.[Method] Single-factor test was used.Municipal solid waste（MSW）was pretreated with alpha-amylase.The addition of alpha-amylase,hydrolysis temperature,hydrolysis time and substrate concentration were chosen as factors.Then aerogenesis and methanogenesis of municipal solid waste were observed.[Result] MSW was digested better after alpha-amylase pretreatment than no pretreatment.The optimum conditions of alpha-amylase pretreatment are as follows：addition of alpha-amylase,100 U/gVS;hydrolysis temperature,50 ℃;hydrolysis time,1 h;and substrate concentration,8%.[Conclusion] The study provides basic data for further optimizing anaerobic digestion process.

关 键 词：Α-淀粉酶 生活垃圾 厌氧消化 

分 类 号：X705[环境科学与工程—环境工程]