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《Environmental Science》 2004-06
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Flocculation and Removal of Water Bloom Cells Microcystis aeruginosa by Chitosan-Modified Clays

ZOU Hua,PAN Gang,CHEN Hao (State Key Lab. of Environmental Aquatic Chemistry, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China  
The kinetics of flocculation and removal of Microcystis aeruginosa by chitosan-modified clays was studied. The efficiency of flocculating and removing of algal cells was greatly improved after the modification of the clays. About 80% of algae cell was removed in 0.5 hour, and 90% in 2 hours, when 11 mg/L modified sepiolite was added. Algae-removal capacities of different clays were all improved to a similar level of 90% at a total loading of 11 mg/L after being modified with chitosan. The efficiency of algae-removing was reduced when the clay loading was larger or smaller than the optimum loading.
【Fund】: 国家“十五”重大科技专项 ( 2 0 0 2AA60 10 1) ;; 国家自然科学基金资助项目 ( 2 0 1770 2 9)
【CateGory Index】: X522;X524
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