期刊
MOLECULES
卷 25, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/molecules25112482
关键词
chitosan; heavy metal ions; adsorption; water treatment; anions
资金
- German Federal Ministry for Economic Affairs and Energy through the Arbeitsgemeinschaft Industrieller Forschungsvereinigungen, Otto von Guericke e.V. in the cooperative project (IPF-TUM) entitled Bio-adsorber aus Brauereireststo ffen zur Schwermetallionen [20879]
The biopolymer chitosan is a very efficient adsorber material for the removal of heavy metal ions from aqueous solutions. Due to the solubility properties of chitosan it can be used as both a liquid adsorber and a solid flocculant for water treatment reaching outstanding adsorption capacities for a number of heavy metal ions. However, the type of anion corresponding to the investigated heavy metal ions has a strong influence on the adsorption capacity and sorption mechanism on chitosan. In this work, the adsorption capacity of the heavy metal ions manganese, iron, cobalt, nickel, copper, and zinc were investigated in dependence on their corresponding anions sulfate, chloride, and nitrate by batch experiments. The selectivity of the different heavy metal ions was analyzed by column experiments.
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