中国科技论文在线

期刊论文

已为您找到该学者8条结果成果回收站

排序

上传时间

2009年02月12日

【期刊论文】PAHs contamination and PAH-degrading bacteria in Xiamen Western Sea

郑天凌， Tian Yuna， b Zheng Tianlinga and Wang. Xinhongb*

Chemical Speciation and Bioavailability (2002), 14(1)，-0001，（）：

-1年11月30日

摘要

Six stations were established in Xiamen Western Sea (24

PAHs,， concentration,， PAH-degrading bacteria

24浏览
0点赞
0收藏
0分享
48下载
0

引用

上传时间

2009年02月12日

【期刊论文】Preliminary study on PAH degradation by bacteria from contaminated sediments in Xiamen Western Sea, Fujian, China*

郑天凌， MASKAOUI Khalid†， ††， ZHENG Tianling†， ††*， HONG Huasheng††， YU Zhiming †††， YUAN Jianjun††††， HU Zhong†

Chinese Journal of Oceanology and Limnology Vol. 22, No.4, P. 431-435, 2004，-0001，（）：

-1年11月30日

摘要

In order to estimate the biodegradation of three polycyclic aromatic hydrocarbons (PAHs) compounds, bacterial strains were isolated from marine sediments in three heavily contaminated sites (Yuandang Lake, Dongdu Port and Aquacultural zones in Maluan Bay) in Xiamen Western Sea. The results show three bacterial strains, which used pyrene as the sole carbon source, were identified as strains of Aureobacterium sp., Arthrobacter sp., Rhodococcus sp. The PAH-degrading bacteria isolated had a strong ability to degrade phenanhrene, fluoranthene and pyrene at different degradation rates. The highest degradation rate was observed when three PAH compounds were mixed with an individual strain in the medium. The three PAHs were degraded after one week with a degradation rate of 89.94% for phenanthrene and 93.4% for both of fluoranthene and pyrene. In addition, after 25 days of incubation, the degradation rate was 99.98% for phenanthrene and 99.97% for both of fluoranthene and pyrene. Optical density was measured to estimate bacterial growth during the degradation of PAHs. Highest levels of bacterial growth were observed with a three PAH mixture in the culture, suggesting that the concentration of PAHs influenced bacterial growth and the highest levels of degradation for most series were detected after one week of incubation.

PAHs,， biodegradation,， bacteria,， Xiamen Western Sea