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	Mechanisms of Cu2+ migration, recovery and detoxification in Cu2+-, SO42--containing wastewater treatment process with anaerobic granular sludge
	Cao, Xiaolei1,2,3,4; Cao, Hongbin1,2,3,4; Sheng, Yuxing1,2,3,4; Xie, Yongbing1,2,3,4; Zhang, Kai1,2,3,4; Zhang, Yi1,2,3,4; Crittenden, John C.5
刊名	ENVIRONMENTAL TECHNOLOGY
	2014-08-03
卷号	35期号:15页码:1956-1961
关键词	sulphate-reducing bacteria granular sludge copper enrichment copper migration mechanism biological sulphate reduction
ISSN号	0959-3330
其他题名	Environ. Technol.
中文摘要	In this study, anaerobic granular sludge with sulphate-reducing bacteria (SRB) was applied to treat Cu (2+)-, -containing wastewater in an expanded granular sludge bed reactor. The migration and enrichment of copper in anaerobic granular sludge were envaluated. By analysing the sludge with X-ray diffraction, copper was determined to be present as covellite (CuS) in the sludge. Observations at the microscopic level showed that CuS precipitates were absorbed onto granules and gradually migrated from the outer to the interior layer of the granule over time and finally accumulated in the core of the granular sludge. Because of the migration of the CuS precipitates and the protection of the extracellular polymeric substances matrix, SRB were able to tolerate copper concentrations up to 10mg/L. A copper removal efficiency of about 96% was observed at a steady state for 3 months, and copper was enriched in the granular sludge.
英文摘要	In this study, anaerobic granular sludge with sulphate-reducing bacteria (SRB) was applied to treat Cu (2+)-, -containing wastewater in an expanded granular sludge bed reactor. The migration and enrichment of copper in anaerobic granular sludge were envaluated. By analysing the sludge with X-ray diffraction, copper was determined to be present as covellite (CuS) in the sludge. Observations at the microscopic level showed that CuS precipitates were absorbed onto granules and gradually migrated from the outer to the interior layer of the granule over time and finally accumulated in the core of the granular sludge. Because of the migration of the CuS precipitates and the protection of the extracellular polymeric substances matrix, SRB were able to tolerate copper concentrations up to 10mg/L. A copper removal efficiency of about 96% was observed at a steady state for 3 months, and copper was enriched in the granular sludge.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	ACID-MINE DRAINAGE ; HEAVY-METALS ; REMOVAL ; COPPER ; SUBSTANCES ; BINDING
收录类别	SCI
原文出处	://WOS:000334661000012
语种	英语
WOS记录号	WOS:000334661000012
公开日期	2014-08-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/10881]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 10090, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 5.Georgia Inst Technol, Brook Byers Inst Sustainable Syst, Atlanta, GA 30332 USA
推荐引用方式 GB/T 7714	Cao, Xiaolei,Cao, Hongbin,Sheng, Yuxing,et al. Mechanisms of Cu2+ migration, recovery and detoxification in Cu2+-, SO42--containing wastewater treatment process with anaerobic granular sludge[J]. ENVIRONMENTAL TECHNOLOGY,2014,35(15):1956-1961.
APA	Cao, Xiaolei.,Cao, Hongbin.,Sheng, Yuxing.,Xie, Yongbing.,Zhang, Kai.,...&Crittenden, John C..(2014).Mechanisms of Cu2+ migration, recovery and detoxification in Cu2+-, SO42--containing wastewater treatment process with anaerobic granular sludge.ENVIRONMENTAL TECHNOLOGY,35(15),1956-1961.
MLA	Cao, Xiaolei,et al."Mechanisms of Cu2+ migration, recovery and detoxification in Cu2+-, SO42--containing wastewater treatment process with anaerobic granular sludge".ENVIRONMENTAL TECHNOLOGY 35.15(2014):1956-1961.

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