工业微生物2011，Vol.41Issue(5)：42-46,5.DOI:10.3969/j.issn.1001-6678.2011.05.009
提高丁醇萃取发酵耦联生产改良型生物柴油过程中萃余液回用效率的研究
Fully utilization of waste supernatant for property improved biodiesel production coupled with butanol extractive fermentation
摘要
Abstract
Using a small quantity of n-octanol (volume ratio 0.2:1) to recover the remaining butanol, more than 56 % of butanol in the waste supernatant could be recovered to extract butanol in the supernatant. As a result, the total butanol yield increased 38%. The waste supernatant could be fully utilized for medium preparation of the next run by pre-treating the supernatant with 3% (w/v) activated carbon to remove melanoidin, the fermentative inhibitor in the waste supernatant. In addition, fully recycling of the waste supernatant for butanol extractive fermentation could be consecutively and stably kept for at least 5 runs without performance deterioration. It supplied a novel, low-cost and environmental-friend production technology for the process of butanol extractive fermentation in couple with property improved biodiesel.关键词
萃取剂/丁醇/发酵/废液回用/生物柴油Key words
extractant/ butanol/ fermentation/ waste supernatant re-utilization/ biodiesel引用本文复制引用
张书敏,郑钧屏,李志刚,段作营,史仲平..提高丁醇萃取发酵耦联生产改良型生物柴油过程中萃余液回用效率的研究[J].工业微生物,2011,41(5):42-46,5.基金项目
国家自然基金(#20976072) （#20976072）
国家重点基础研究发展规划项目(973项目,#2007CB714303). （973项目,#2007CB714303）
