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Mechanisms of Cu2+ migration, recovery and detoxification in Cu2+-, SO42--containing wastewater treatment process with anaerobic granular sludge
Alternative TitleEnviron. Technol.
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
2014-08-03
Source PublicationENVIRONMENTAL TECHNOLOGY
ISSN0959-3330
Volume35Issue:15Pages:1956-1961
AbstractIn 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.; 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.
KeywordSulphate-reducing Bacteria Granular Sludge Copper Enrichment Copper Migration Mechanism Biological Sulphate Reduction
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1080/09593330.2014.889215
URL查看原文
Indexed BySCI
Language英语
WOS KeywordACID-MINE DRAINAGE ; HEAVY-METALS ; REMOVAL ; COPPER ; SUBSTANCES ; BINDING
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000334661000012
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10881
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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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