Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae

doi:10.1016/j.jes.2021.01.008

	Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae
	Dong, Xueyi 1,2,3,5; Cao, Xihua2,3,4,5 ; Jiang, Wenbin 2,3,4,5; Song, Xiuxian2,3,4,5 ; Yu, Zhiming2,3,4,5 ; Yu, Shitao 1
	2021-08-01
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
卷号	106 页码:76-82
通讯作者	Cao, Xihua(caoxh@qdio.ac.cn)
摘要	Polyaluminum chloride modified clay (PAC-MC) is a safe and efficient red tide control agent that has been studied and applied worldwide. Although it is well known that the distribution of hydrolytic aluminum species in PAC affects its flocculation, little is known about the influence of particulars aluminum species on the microalgae removal efficiency of PAC-MC; this lack of knowledge creates a bottleneck in the development of more efficient MCs based on aluminum salts. The ferron method was used in this study to quantitatively analyze the distributions of and variations in different hydrolytic aluminum species during the process of microalgae removal by PAC-MC. The results showed that Al a, which made up 5%-20% of the total aluminum, and Al-p, which made up 15%-55% of the total aluminum, significantly affected microalgae removal, with Pearson's correlation coefficients of 0.83 and 0.89, respectively. Most of the aluminum in the PAC-MC sank rapidly into the sediments, but the rate and velocity of settlement were affected by the dose of modified clay. The optimal dose of PAC-MC for precipitating microalgae was determined based on its aluminum profile. These results provide guidance for the precise application of PAC-MC in the control of harmful algal blooms. (C) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
关键词	Modified clay Red tide Aluminum species Microalgal removal efficiency Ecological safety
DOI	10.1016/j.jes.2021.01.008
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41976145] ; Taishan Scholars Climbing Program of Shandong Province ; Science and Technology Major Project of Guangxi[AA17202020-4]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000672560800007
出版者	SCIENCE PRESS
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/175838
专题	海洋生态与环境科学重点实验室
通讯作者	Cao, Xihua
作者单位	1.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
第一作者单位	海洋生态与环境科学重点实验室; 中国科学院海洋大科学研究中心
通讯作者单位	海洋生态与环境科学重点实验室; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Dong, Xueyi,Cao, Xihua,Jiang, Wenbin,et al. Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,106:76-82.
APA	Dong, Xueyi,Cao, Xihua,Jiang, Wenbin,Song, Xiuxian,Yu, Zhiming,&Yu, Shitao.(2021).Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae.JOURNAL OF ENVIRONMENTAL SCIENCES,106,76-82.
MLA	Dong, Xueyi,et al."Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae".JOURNAL OF ENVIRONMENTAL SCIENCES 106(2021):76-82.

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