环境工程学报2012，Vol.6Issue(4)：1403-1408,6.
芘降解菌DY-1的条件优化及降解动力学特性分析
Characteristic analysis of optimization and degradation kinetics of pyrene-degrading strains DY-1（Pseudomonas sp.）
摘要
Abstract
A selection of a pyrene degradation strains was bacteria DY-1（Pseudomonas sp.） which had cultured and could use pyrene as the sole carbon source.Used shaking cultivation method,the dynamic properties and the effects of different conditions by DY-1 were investigated.The results showed that,the highest removal rate of pyrene was 83.2% after 9 d,while the initial concentration of pyrene was 50 mg/L.The optimal condition was 30 ℃,pH was 7.5,rotational speed was 120 r/min and inoculation was 1.5 mL.The degradation of pyrene conformed to the first-order reaction dynamic properties under different culture conditions.Low concentration of Zn2＋,Cd2＋,Cr6＋ could partially inhibit the degradation rate of pyrene,and Cu2＋,Pb2＋ were toxic to it.When the low concentration organic compound was added into the system with pyrene,sucrose could enhance the degradation of pyrene.The low concentration naphthaene and Anthracene could enhance the degradation of pyrene.关键词
DY-1菌株/芘降解/培养条件/动力学Key words
culture DY-1/pyrene degradation/cultivating conditions/dynamic分类
资源环境引用本文复制引用
思显佩,邵承斌,熊建功,曹霞霞,敖黎鑫..芘降解菌DY-1的条件优化及降解动力学特性分析[J].环境工程学报,2012,6(4):1403-1408,6.基金项目
基金项目：重庆市科委攻关项目 （）
