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《Fisheries Science》 2007-10
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Absorption of Cu~(2+) in Aquaculture Effluents by a Chitosan Derivative

CHEN Shu-qiao,ZHOU Guo-qin,ZHOU Guo-ping,CHEN Bing(Nanjing Fishery Science Research Institute,Nanjing 210036,China)  
A novel chitosan derivative was prepared by chitosan and carboxymethyl chitosan as raw materials,and 25% glutaraldyhyde as a cross-linked agent to absorb Cu2 +in aquaculture effluents.The effects of the Cu2+ concentration,pH value,absorption duration,temperature and dosage of the chitosan derivative on Cu2+ absorption were investigated.The results showed that the chitosan derivative had higher absorption for Cu2+,the absorption capacity reaching 178 mg/g,and can be reused several times after simple regeneration.It is a hopeful way to treat aquaculture effluent.
【CateGory Index】: X703
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