Insights into how characteristics of dissolved algal organic matter affect the efficiency of modified clay in controlling harmful algal blooms

doi:10.1016/j.marpolbul.2024.116437

	Insights into how characteristics of dissolved algal organic matter affect the efficiency of modified clay in controlling harmful algal blooms
	Chu, Na 1,2; Cao, Xihua2,3 ; Wang, Yafan 2,4; Jiang, Wenbin2 ; Zang, Xiaomiao 2; Song, Xiuxian2,3 ; Xu, Yuanhong 1; Yu, Zhiming2,3
	2024-06-01
发表期刊	MARINE POLLUTION BULLETIN
ISSN	0025-326X
卷号	203 页码:11
通讯作者	Cao, Xihua([email protected])
摘要	Dissolved algal organic matter (dAOM) originating from harmful algal blooms (HABs) can deteriorate the quality of municipal water supplies, threaten the health of aquatic environments, and interfere with modified clay (MC)based HABs control measures. In this study, we explored the composition of dAOM from Prorocentrum donghaiense, a typical HAB organism, and assessed the influence of dAOM on MC flocculation. Our results suggested that dAOM composition was complex and had a wide molecular weight (MW) distribution. MW and electrical properties were important dAOM characteristics affecting flocculation and algal removal efficiency of MC. Negatively charged high-MW components (>50 kDa) critically affected algal removal efficiency, reducing the zeta potential of MC particles and leading to small and weak flocs. However, the effect of dAOM depended on its concentration. When the cell density of P. donghaiense reached HAB levels, the high-MW dAOM strongly decreased the algal removal efficiency of MC.
关键词	Modified clay Flocculation Algal removal efficiency Dissolved algal organic matter Molecular weight Electrical property
DOI	10.1016/j.marpolbul.2024.116437
收录类别	SCI
语种	英语
资助项目	China National Key Research and Development Program during the 14th Five-year Plan Period[2022YFC3105204]; National Natural Science Foundation of China[41976145]; National Key Research and Development Program (Inter-Governmental Key Project for Interna-tional Cooperation in Science and Technology Innovation)[SQ2022YFE010525]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001266106200001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	MICROCYSTIS-AERUGINOSA ; POLYALUMINUM CHLORIDE ; FORMING MARINE ; COAGULATION ; REMOVAL ; PHYTOPLANKTON ; MECHANISMS ; ALUMINUM ; CYANOBACTERIUM ; PREOXIDATION
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186351
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, Inst Biomed Engn, Coll Life Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Qingdao Univ Sci & Technol, Coll Marine Sci & Biol Engn, Qingdao 266042, Peoples R China
第一作者单位	海洋生态与环境科学重点实验室
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	Chu, Na,Cao, Xihua,Wang, Yafan,et al. Insights into how characteristics of dissolved algal organic matter affect the efficiency of modified clay in controlling harmful algal blooms[J]. MARINE POLLUTION BULLETIN,2024,203:11.
APA	Chu, Na.,Cao, Xihua.,Wang, Yafan.,Jiang, Wenbin.,Zang, Xiaomiao.,...&Yu, Zhiming.(2024).Insights into how characteristics of dissolved algal organic matter affect the efficiency of modified clay in controlling harmful algal blooms.MARINE POLLUTION BULLETIN,203,11.
MLA	Chu, Na,et al."Insights into how characteristics of dissolved algal organic matter affect the efficiency of modified clay in controlling harmful algal blooms".MARINE POLLUTION BULLETIN 203(2024):11.