Biodegradation Strain and Degradation Kinetics for Tetrachlorobiphenyl

摘要：

The strain named as T-2, was isolated from the activated sludge domesticated by waste water with Polychlorinated biphenyls (PCBs). T-2 was chosen as an effective degradation strain for tetrachlorobiphenyl after T-2 was identified as Staphylococcus epidermidis by 16S rDNA analysis and compared in the NCBI database. Under the condition of 30℃, 150rpm and 0.2% of inoculation amount, the degradation of tetrachlorobiphenyl could reach 73.54% in the fifth day and the degradation kinetic equation corresponded with first-order reaction kinetics. It was found that tetrachlorobiphenyl had played an slightly effect on the growth for T-2. However, extra carbon source with glucose played an adverse effect on the growth for T-2, the degradation of tetrachlorobiphenyl was improved. Several factors were discussed which could affect the growth of T-2. One of the most important factors was pH, the second was shaking speed, the last was environmental temperature.

关键词： tetrachlorobiphenyl biodegradation strain degradation kinetics

作者: ZHAO Xiaoxiang ZHENG Qingfeng ZHUANG Huisheng

作者单位: College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 1739-1743

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）