Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils

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	Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils
	Dai, Guofei 1,2; Zhong, Jiayou 1; Song, Lirong 2; Guo, Chunjing 1; Gan, Nanqin 2; Wu, Zhenbin 2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2015-07-01
卷号	22 期号:14 页码:10636-10646
关键词	Microcystis Poly(epichlorohydrin-dimethylamine) Polymeric ferric sulfate Soil Flocculation
ISSN号	0944-1344
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.
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.
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]	MICROCYSTIS-AERUGINOSA ; CYANOBACTERIAL BLOOMS ; LOCAL SOILS ; WASTE-WATER ; LAKE TAIHU ; LR ; MACROPHYTES ; ADSORPTION ; CHITOSAN ; RELEASE
收录类别	SCI
语种	英语
WOS记录号	WOS:000357344300026
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/23928]
专题	水生生物研究所_水环境工程研究中心_期刊论文
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
推荐引用方式 GB/T 7714	Dai, Guofei,Zhong, Jiayou,Song, Lirong,et al. Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2015,22(14):10636-10646.
APA	Dai, Guofei,Zhong, Jiayou,Song, Lirong,Guo, Chunjing,Gan, Nanqin,&Wu, Zhenbin.(2015).Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,22(14),10636-10646.
MLA	Dai, Guofei,et al."Harmful algal bloom removal and eutrophic water remediation by commercial nontoxic polyamine-co-polymeric ferric sulfate-modified soils".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 22.14(2015):10636-10646.