中药废水主要成分厌氧生物降解途径研究  

Anaerobic Biodegradation Pathway of the Main Ingredient of Traditional Chinese Medicine Wastewater

作　　者：施悦[1] 任南琪[2] 章育铭[2] 肖荣新[3] 

机构地区：[1]哈尔滨工程大学动力与能源工程学院,哈尔滨150001 [2]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [3]大庆市环境监测中心站,大庆163316

出　　处：《环境科学》2007年第11期2515-2519,共5页Environmental Science

基　　金：国家高技术研究发展计划(863)项目(2002AA601310);黑龙江省科技攻关计划重点项目(GA01C201-01);哈尔滨工程大学校基金项目(002030260731);黑龙江省博士后基金项目(01105306);中国博士后科学基金项目(20060400243)

摘　　要：通过小试研究,利用气-质联机(GC-MS)对黄芩甙的厌氧生物降解曲线和途径进行了探讨,对黄芩甙的降解数据进行趋势化模拟和线性回归分析,得到了相应的降解动力学方程.黄芩甙可能的降解途径为'脱糖→脱苯→开环→饱和化→拆链',降解时间需47 h以上,厌氧分解的主要产物是小分子氧化物,如醇、醛、酸、酯、烯烃以及还原态饱和烷烃.结果表明,黄芩甙降解的限速步骤在水解酸化阶段,适宜采用两相厌氧消化技术和较长的停留时间进行处理.A laboratory-scale experiment was done. And the baicalin anaerobic biodegradation curve and pathway were discussed by analyzing the results of GC-MS. After analogue of status＇ s trend and analysis of its regression, the biodegradation kinetic equation of baicalin was obtained. And the possible biodegradation pathway was ＂desugar →debentures →open benzene ring →saturating →disconnect links＂. It took at least 47 h to biodegrade baicalin. The main products of anaerobic biodegradation were micro-molecule oxide, such as alcohols, aldehydes, acids, esters, olefin, and hydrocarbon of methane series. This result demonstrated that the rate-limiting steps of bacalin biodegradation were the hydrolyzing and acidification phase. It was suitable to use two-phase anaerobic process and long HRT to biodegrade baicalin.

关 键 词：中药废水 厌氧生物降解 降解途径 黄芩甙 

分 类 号：X787[环境科学与工程—环境工程]