期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 126, 期 -, 页码 7-12出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2013.04.011
关键词
Chromate(VI) removal; Industrial wastewater; Resting cells; Pseudochrobactrum sp B5; Proteus sp H24; 16S rRNA analysis
资金
- Zhejiang Provincial Natural Science Foundation of China [Y3110062]
- Science and Technology Program of Zhejiang Province [KZ1012011]
- Wenzhou Key Science and Technology Innovation Team Program [KZ1211004]
Two marine bacterial strains, B5 and H24, were isolated from long-term Cr(VI) contaminated seawater and identified as Pseudochrobactrum and Proteus, respectively, based on 16S rRNA gene sequence analyses. Both strains were examined for their tolerance to Cr(VI) and other metal salts and their abilities to reduce Cr(VI) to trivalent chromium [Cr(III)]. Growing cells of Pseudochrobactrum sp. B5 and Proteus sp. H24 could tolerate Cr(VI) at a concentration of 2000 and 1500 mg/l and completely reduce 1000 mg/l Cr(VI) in LB medium within 96 and 144 h, respectively. Resting cells of the two strains were able to reduce 200 mg/l Cr(VI) in Tris HCl buffer within 16 and 24 h, respectively. Furthermore, resting cells of both strains were able to reduce Cr(VI) in industrial wastewaters three times consecutively. Overall, this study provides evidence of the potential for application of chromate-reducing bacteria to direct Cr(VI) decontamination of industrial effluents. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据