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- W2349277783 abstract "[Objective] The aim of the study was to develop the removal technique of Cr6+ in waste water by utilizing the adsorption of chitosan.[Method] The coated Co-ferrite magnetic microspheres were prepared by cross linkage of glutaraldehyde and chitosan and used to adsorbing Cr6+ from water.The diphenylcarbohydrazide spectrophotometry was used to determine Cr6+ concn.in the solution,and then the removal rate on Cr6+ was calculated out.[Result] The removal rate on Cr6+ increased along with the increment of pH value.When pH value was about 6,the removal effect on Cr6+ was best,but when pH value went on increasing,the removal effect reduced.The removal rate on Cr6+ increased along with the increment of time,after 140 min,the removal rate tended to be stable.The removal rate on Cr6+ increased along with the increment of absorbent dose and the effect was significant,but since the dose exceeded 0.7 g,the removal rate no longer increased significantly.[Conclusion] Though the adsorption performance of cross-linked magnetic chitosan on Cr6+ was lower than that of activated carbon,it had advantages such as magnetic separation,fast adsorption,no secondary pollution and convenient recycling." @default.
- W2349277783 created "2016-06-24" @default.
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- W2349277783 date "2008-01-01" @default.
- W2349277783 modified "2023-09-24" @default.
- W2349277783 title "Study on the Adsorption of Cr~(6+) by Co-ferrites/Chitosan Core-shell Magnetic Microspheres" @default.
- W2349277783 hasPublicationYear "2008" @default.
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