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题名: An integrated method for removal of harmful cyanobacterial blooms in eutrophic lakes
作者: Wang, Zhicong1, 2; Li, Dunhai1; Qin, Hongjie1, 2; Li, Yinxia1, 2
通讯作者: Li, DH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Algaecide ; Bloom control ; Eutrophic lakes ; Flocculants ; Harmful cyanobacteria
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2012
DOI: 10.1016/j.envpol.2011.09.003
卷: 160, 页:34-41
收录类别: SCI
文章类型: Article
部门归属: [Wang, Zhicong; Li, Dunhai; Qin, Hongjie; Li, Yinxia] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wang, Zhicong; Qin, Hongjie; Li, Yinxia] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Basic Research and Development Plan[2008CB418002]; National Major Programs of Water Body Pollution Control and Remediation[2009ZX07104-005-3, 2009ZX07106-001-003]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: As the eutrophication of lakes becomes an increasingly widespread phenomenon, cyanobacterial blooms are occurring in many countries. Although some research has been reported, there is currently no good method for bloom removal. We propose here a new two-step integrated approach to resolve this problem. The first step is the inactivation of the cyanobacteria via the addition of H(2)O(2). We found 60 mg/L was the lowest effective dose for a cyanobacterial concentration corresponding to 100 mu g/L chlorophylla. The second step is the flocculation and sedimentation of the inactivated cyanobacteria. We found the addition of lake sediment clay (2 g/L) plus polymeric ferric sulfate (20 mg/L) effectively deposited them on the lake bottom. Since algaecides and flocculants had been used separately in previous reports, we innovatively combined these two types of reagents to remove blooms from the lake surface and to improve the dissolved oxygen content of lake sediments. (C) 2011 Elsevier Ltd. All rights reserved.
英文摘要: As the eutrophication of lakes becomes an increasingly widespread phenomenon, cyanobacterial blooms are occurring in many countries. Although some research has been reported, there is currently no good method for bloom removal. We propose here a new two-step integrated approach to resolve this problem. The first step is the inactivation of the cyanobacteria via the addition of H(2)O(2). We found 60 mg/L was the lowest effective dose for a cyanobacterial concentration corresponding to 100 mu g/L chlorophylla. The second step is the flocculation and sedimentation of the inactivated cyanobacteria. We found the addition of lake sediment clay (2 g/L) plus polymeric ferric sulfate (20 mg/L) effectively deposited them on the lake bottom. Since algaecides and flocculants had been used separately in previous reports, we innovatively combined these two types of reagents to remove blooms from the lake surface and to improve the dissolved oxygen content of lake sediments. (C) 2011 Elsevier Ltd. All rights reserved.
关键词[WOS]: MICROCYSTIS-AERUGINOSA ; HYDROGEN-PEROXIDE ; POLYFERRIC SULFATE ; ALGAL BLOOMS ; DRINKING-WATER ; WASTE-WATER ; STRESS ; PHOTOSYNTHESIS ; SENSITIVITY ; INHIBITION
语种: 英语
WOS记录号: WOS:000297898000006
ISSN号: 0269-7491
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16755
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Zhicong; Li, Dunhai; Qin, Hongjie; Li, Yinxia.An integrated method for removal of harmful cyanobacterial blooms in eutrophic lakes,ENVIRONMENTAL POLLUTION,2012,160():34-41
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