[Flocculation and removal of water bloom cells Microcystis aeruginosa by chitosan-modified clays].
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.
Zou
Hua
H
State Key Lab. of Environmental Aquatic Chemistry, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Pan
Gang
G
Chen
Hao
H
D000538:Aluminum Silicates; D048271:Chitosan; D000077215:Clay; D056890:Eukaryota / Q000254:growth & development*; D005068:Eutrophication; D005427:Flocculation; D046931:Microcystis / Q000254:growth & development*; D018508:Water Purification / Q000379:methods*
D000538:Aluminum Silicates; D048271:Chitosan; D000077215:Clay