Study on Ethanol Production from Kitchen Garbage by Acid-tolerant bacteria under Non-sterilized Fermentation

摘要：

A strain of acid-tolerant bacterium was utilized to determine the feasibility of ethanol production from kitchen garbage through non-sterilized fermentation. Ethanol production from Kitchen garbage under pH of 4 in both sterilized and non-sterilized fermentation was compared in this study. Orthogonal experimental design was adopted to determine the optimum conditions. The result demonstrated that the isolated Zymomonas mobilis named GZNS1 could produce ethanol efficiently under pH of 4 without sterilization. The maximum ethanol concentration of 53 g/L could be obtained under the condition of fermentation time of 40h, pH of 4, temperature of 29℃, inoculum size of 9%. The process enjoyed the low cost and simple technology, which should be further studied to make it industrial applicable.

关键词： kitchen garbage ethanol fermentation non-sterilized fermentation orthogonal experimental design

作者: Zhang Wenyu Ma Hongzhi Wang Qunhui

作者单位: Department of Environmental Engineering, University of Science and Technology BeijingBeijing, 100083, China

会议类型: 国际会议

会议名称: The 3rd International Conference on Waste Management and Technology(第三届固体废物管理与技术国际研讨会)

会议地点: 北京

会议语种:英文

页码: 249-254

在线出版日期: 2008-11-05（万方平台首次上网日期，不代表论文的发表时间）