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Bioremediation of wastewater containing mercury using three newly isolated bacterial strains
Zhao, Meng M.1; Kou, Jia-bin1; Chen, Yi-ping2; Xue, Lin-gui1; Fan, Tao T.1; Wang, Shao-mei1
通讯作者Chen, Yi-ping(chenyp@ieecas.cn)
2021-05-25
发表期刊JOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
卷号299页码:11
摘要To successfully clean and recycle heavy metal-contaminated wastewater, we developed a fast, simple, low-cost, and efficient bioremediation method to eliminate mercury (Hg) pollution. We isolated three bacterial strains with strong Hg tolerance and reduction capacities from the polluted waters of the Yellow River. These bacterial strains mainly reduced Hg2+ by the mer operon. The bacterial strains had the best treatment effect on Hg-contaminated wastewater when mixed in equal proportions. Under the optimum growth conditions of the bacterial strains, it would take about 60 L of the three strains in the same proportion in a cultured solution to treat 1 ton of wastewater containing 10 mg/L Hg2+. After 48 h of treatment, the concentration of Hg2+ in the wastewater could reach the national standard (Hg2+ <0.05 mg/L). The bacterial strains also exhibited tolerance and transformational abilities for Pb2+, Cr6+, As5+, and Cd2+, indicating that these bacteria could be utilized in more complex heavy metal-polluted environments. This work revealed a new method for the bioremediation of heavy metal-polluted wastewater. (C) 2021 Elsevier Ltd. All rights reserved.
关键词Cleaner water production Heavy metal wastewater Hg-tolerant bacteria Hg reduction mechanism Environment protection
DOI10.1016/j.jclepro.2021.126869
关键词[WOS]REDUCTASE-ACTIVITY ; SP NOV. ; METAL ; DETOXIFICATION ; RESISTANCE ; RIVER ; RISK ; GENE ; MERA ; ION
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[31860163] ; Tianyou Innovation Team Research Fund of Lanzhou Jiaotong University ; Key Project of Graduate Teaching Reform of Lanzhou Jiaotong University ; Key Project of Undergraduate Teaching Reform of Lanzhou Jiaotong University
WOS研究方向Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
项目资助者National Natural Science Foundation of China ; Tianyou Innovation Team Research Fund of Lanzhou Jiaotong University ; Key Project of Graduate Teaching Reform of Lanzhou Jiaotong University ; Key Project of Undergraduate Teaching Reform of Lanzhou Jiaotong University
WOS类目Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000647718800009
出版者ELSEVIER SCI LTD
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/16712
专题生态环境研究室
通讯作者Chen, Yi-ping
作者单位1.Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Meng M.,Kou, Jia-bin,Chen, Yi-ping,et al. Bioremediation of wastewater containing mercury using three newly isolated bacterial strains[J]. JOURNAL OF CLEANER PRODUCTION,2021,299:11.
APA Zhao, Meng M.,Kou, Jia-bin,Chen, Yi-ping,Xue, Lin-gui,Fan, Tao T.,&Wang, Shao-mei.(2021).Bioremediation of wastewater containing mercury using three newly isolated bacterial strains.JOURNAL OF CLEANER PRODUCTION,299,11.
MLA Zhao, Meng M.,et al."Bioremediation of wastewater containing mercury using three newly isolated bacterial strains".JOURNAL OF CLEANER PRODUCTION 299(2021):11.
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