吴梦瑶,胡翔

• 1:北京化工大学化学工程学院

摘要(Abstract)：

利用驯化活性污泥法进行离子液体的生物降解性研究较少,而传统的OECD(Closed Bottle Test Method)法测定离子液体的生物降解性显示其很难被降解。用驯化活性污泥法考察1-己基-3-甲基咪唑六氟磷酸盐([HMIM][PF6])的降解性,研究活性污泥的驯化时间、[HMIM][PF6]的初始浓度对降解的影响。结果显示用用驯化活性污泥降解[HMIM][PF6],其降解率可达90%以上。为了进一步明确在活性污泥中起降解[HMIM][PF6]作用的微生物的种类,对其特定的降解菌进行筛选与鉴定。通过绘制菌株的生长曲线和其对[HMIM][PF6]的底物降解曲线,研究不同生长因素对菌株生长的影响,得其最佳反应pH值为7,可耐受的[HMIM][PF6]浓度为300 mg?L?1;进而通过16SrDNA基因序列的同源性分析,对菌株进行系统分类鉴定。

关键词(KeyWords)： 离子液体;生物降解;菌株筛选;16SrDNA

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(20776015)

作者(Author): 吴梦瑶,胡翔

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