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Harmful algal blooms mitigation using clay/soil/sand modified with xanthan and calcium hydroxide
Chen, Jing1; Pan, Gang2
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
2012-10-01
Volume24Issue:5Pages:1183-1189
KeywordHarmful Algal Blooms Mitigation Flocculation Xanthan Sand Soil Clay
Contribution Rank[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
Corresponding AuthorChen, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China.
Department中科院海岸带环境过程与生态修复重点实验室
AbstractA 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.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordCYANOBACTERIAL BLOOMS ; CLAY FLOCCULATION ; LOCAL SOILS ; RED-TIDE ; AUREOCOCCUS-ANOPHAGEFFERENS ; REMOVAL ; GUM ; CHITOSAN ; EFFICIENCY ; RECOVERY
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
Funding ProjectChen, Jing; Pan, Gang
WOS IDWOS:000308423100020
Funding OrganizationNational Key Project for Basic Research of China [2008CB418105]
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/5998
Collection中科院海岸带环境过程与生态修复重点实验室
Affiliation1.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
Recommended Citation
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.
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