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题名: Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils
作者: Dai, Guofei1, 2; Zhong, Jiayou1; Song, Lirong2; Guo, Chunjing1; Gan, Nanqin2; Wu, Zhenbin2
通讯作者: Zhong, JY (reprint author), Jiangxi Inst Water Sci, Jiangxi Prov Key Lab Water Resources & Environm P, Nanchang 330029, Peoples R China.
关键词: Microcystis ; Poly(epichlorohydrin-dimethylamine) ; Polymeric ferric sulfate ; Soil ; Flocculation
刊名: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
发表日期: 2015-07-01
DOI: 10.1007/s11356-015-4274-4
卷: 22, 期:14, 页:10636-10646
收录类别: SCI
文章类型: Article
部门归属: [Dai, Guofei ; Zhong, Jiayou ; Guo, Chunjing] Jiangxi Inst Water Sci, Jiangxi Prov Key Lab Water Resources & Environm P, Nanchang 330029, Peoples R China ; [Dai, Guofei ; Song, Lirong ; Gan, Nanqin ; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: Harmful algal bloom has posed great threat to drinking water safety worldwide. In this study, soils were combined with commercial nontoxic polyamine poly(epichlorohydrin-dimethylamine) (PN) and polymeric ferric sulfate (PFS) to obtain PN-PFS soils for Microcystis removal and eutrophic water remediation under static laboratory conditions. High pH and temperature in water could enhance the function of PN-PFS soil. Algal removal efficiency increased as soil particle size decreased or modified soil dose increased. Other pollutants or chemicals (such as C, P, and organic matter) in eutrophic water could participate and promote algal removal by PN-PFS soil; these pollutants were also flocculated. During PN-PFS soil application in blooming field samples, the removal efficiency of blooming Microcystis cells exceeded 99 %, the cyanotoxin microcystins reduced by 57 %. Water parameters (as TP, TN, SS, and SPC) decreased by about 90 %. CODMn, PO4-P, and NH4-N also sharply decreased by > 45 %. DO and ORP in water improved. Netting and bridging effects through electrostatic attraction and complexation reaction could be the two key mechanisms of Microcystis flocculation and pollutant purification. Considering the low cost of PN-PFS soil and its nontoxic effect on the environment, we proposed that this soil combination could be applied to remove cyanobacterial bloom and remediate eutrophic water in fields.
关键词[WOS]: MICROCYSTIS-AERUGINOSA ; CYANOBACTERIAL BLOOMS ; LOCAL SOILS ; WASTE-WATER ; LAKE TAIHU ; LR ; MACROPHYTES ; ADSORPTION ; CHITOSAN ; RELEASE
语种: 英语
WOS记录号: WOS:000357344300026
ISSN号: 0944-1344
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23928
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.Jiangxi Inst Water Sci, Jiangxi Prov Key Lab Water Resources & Environm P, Nanchang 330029, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
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