Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide

	Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide
	Chen, Jing 1; Pan, Gang 2
发表期刊	JOURNAL OF APPLIED PHYCOLOGY
ISSN	0921-8971
	2012-10-01
卷号	24 期号:5 页码:1183-1189
关键词	Harmful Algal Blooms Mitigation Flocculation Xanthan Sand Soil Clay
产权排序	[Chen, Jing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Pan, Gang] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 10085, Peoples R China
通讯作者	Chen, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China.
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	A method was studied for marine harmful algal blooms (HABs) mitigation using clay, soil, or sand modified with xanthan and calcium hydroxide. Results showed that xanthan could trap and wrap Amphidinium carterae cells via bridging and netting interactions due to its superior salt compatibility in seawater. The maximum cell removal efficiency was 55% when xanthan was used alone. The removal effect of xanthan was enhanced by the addition of appropriate calcium hydroxide that decreased the repulsive interaction between anionic xanthan and negatively charged algal cells. Three kinds of minerals (clays, soils, and sands) were ineffective in removing algal cells before treatment. When xanthan and calcium hydroxide were used together as modifiers, the removal efficiency increased to 83-89% within 30 min using 300 mg L-1 clays, soils, or sands modified with 20 mg L-1 xanthan and 100 mg L-1 calcium hydroxide. After several hours, 95-98% cell removal was achieved and there was no significant difference in the removal efficiencies among clays, soils, and sands after being modified with xanthan and calcium hydroxide. Thus, the method would provide an alternative modification approach to suppress and mitigate HABs using local soils/sands and polymers in marine systems.; A method was studied for marine harmful algal blooms (HABs) mitigation using clay, soil, or sand modified with xanthan and calcium hydroxide. Results showed that xanthan could trap and wrap Amphidinium carterae cells via bridging and netting interactions due to its superior salt compatibility in seawater. The maximum cell removal efficiency was 55% when xanthan was used alone. The removal effect of xanthan was enhanced by the addition of appropriate calcium hydroxide that decreased the repulsive interaction between anionic xanthan and negatively charged algal cells. Three kinds of minerals (clays, soils, and sands) were ineffective in removing algal cells before treatment. When xanthan and calcium hydroxide were used together as modifiers, the removal efficiency increased to 83-89% within 30 min using 300 mg L-1 clays, soils, or sands modified with 20 mg L-1 xanthan and 100 mg L-1 calcium hydroxide. After several hours, 95-98% cell removal was achieved and there was no significant difference in the removal efficiencies among clays, soils, and sands after being modified with xanthan and calcium hydroxide. Thus, the method would provide an alternative modification approach to suppress and mitigate HABs using local soils/sands and polymers in marine systems.
文章类型	Article
资助机构	National Key Project for Basic Research of China [2008CB418105]
收录类别	SCI
语种	英语
关键词[WOS]	CYANOBACTERIAL BLOOMS ; CLAY FLOCCULATION ; LOCAL SOILS ; RED-TIDE ; AUREOCOCCUS-ANOPHAGEFFERENS ; REMOVAL ; GUM ; CHITOSAN ; EFFICIENCY ; RECOVERY
研究领域[WOS]	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS记录号	WOS:000308423100020
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/5998
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 10085, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jing,Pan, Gang. Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide[J]. JOURNAL OF APPLIED PHYCOLOGY,2012,24(5):1183-1189.
APA	Chen, Jing,&Pan, Gang.(2012).Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide.JOURNAL OF APPLIED PHYCOLOGY,24(5),1183-1189.
MLA	Chen, Jing,et al."Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide".JOURNAL OF APPLIED PHYCOLOGY 24.5(2012):1183-1189.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Harmful algal blooms（294KB）			开放获取	--	浏览下载