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

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide
	Chen, Jing 1; Pan, Gang 2
刊名	JOURNAL OF APPLIED PHYCOLOGY
	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
ISSN号	0921-8971
通讯作者	Chen, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China.
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
中文摘要	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.
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.
学科主题	Biotechnology & Applied Microbiology; Marine & Freshwater Biology
研究领域[WOS]	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
关键词[WOS]	CYANOBACTERIAL BLOOMS ; CLAY FLOCCULATION ; LOCAL SOILS ; RED-TIDE ; AUREOCOCCUS-ANOPHAGEFFERENS ; REMOVAL ; GUM ; CHITOSAN ; EFFICIENCY ; RECOVERY
收录类别	SCI
资助信息	National Key Project for Basic Research of China [2008CB418105]
原文出处	http://dx.doi.org/10.1007/s10811-011-9751-7
语种	英语
WOS记录号	WOS:000308423100020
公开日期	2013-03-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5999]
专题	烟台海岸带研究所_中科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.