Chitosan modification and its synergism with clay to mitigate harmful algal blooms

doi:10.1016/j.eti.2023.103028

	Chitosan modification and its synergism with clay to mitigate harmful algal blooms
	Li, Hui ; Yu, Zhiming1 ; Cao, Xihua; Song, Xiuxian
	2023-02-01
发表期刊	ENVIRONMENTAL TECHNOLOGY & INNOVATION
ISSN	2352-1864
卷号	29 页码:13
通讯作者	Yu, Zhiming(zyu@qdio.ac.cn)
摘要	Chitosan is a natural and eco-friendly material, often used as a flocculant in water purification; however, due to the influences of high salinity and pH, the application of chitosan in seawater has been greatly limited. In this paper, a modified chitosan (3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA) chitosan, denoted as CTC) was prepared by chemical modification. This greatly increased the solubility of chitosan both in deionized water and seawater, and solved the technical difficulty of applying chitosan in seawater. The structure of CTC and its solubilization on chitosan in seawater were analyzed by Zeta potential, FTIR, 13C NMR, XRD and SEM. On this basis, CTC modified clay (CTCMC) was further prepared based on the principle of mitigating harmful algal blooms with modified clay. At a CTCMC dosage of 20 mg/L, the removal efficiency of Prorocentrum donghaiense was approximately 80%, while the dosage of traditional modified clay (MCI) was 200 mg/L for the same removal efficiency. The dosage was nearly an order of magnitude less than that of the MCI, suggesting that the novel CTCMC is promising in the mitigation of harmful algal blooms. Further, the flocculation mechanism was determined based upon surface properties, and mechanical and flocculation characteristics. (c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Harmful algal blooms Chitosan modification Chitosan-based modified clay HAB mitigation Synergic mechanism
DOI	10.1016/j.eti.2023.103028
收录类别	SCI
语种	英语
资助项目	Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology[2021QNLM040001] ; Taishan Scholars Climbing Program of Shandong Province of the year 2019 ; Science and Technology Major Project of Guangxi, China[AA17202020-4]
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
WOS类目	Biotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000926424200001
出版者	ELSEVIER
WOS关键词	FLOCCULATION ; EFFICIENCY ; PHOSPHATE ; REMOVAL
引用统计	被引频次：5[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/337002/183462
专题	海洋生态与环境科学重点实验室
通讯作者	Yu, Zhiming
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
通讯作者单位	海洋生态与环境科学重点实验室
推荐引用方式 GB/T 7714	Li, Hui,Yu, Zhiming,Cao, Xihua,et al. Chitosan modification and its synergism with clay to mitigate harmful algal blooms[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2023,29:13.
APA	Li, Hui,Yu, Zhiming,Cao, Xihua,&Song, Xiuxian.(2023).Chitosan modification and its synergism with clay to mitigate harmful algal blooms.ENVIRONMENTAL TECHNOLOGY & INNOVATION,29,13.
MLA	Li, Hui,et al."Chitosan modification and its synergism with clay to mitigate harmful algal blooms".ENVIRONMENTAL TECHNOLOGY & INNOVATION 29(2023):13.