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Use of chitosan and chitosan-derivatives to remove arsenic from aqueous solutions—a mini review

2012; Elsevier BV; Volume: 356; Linguagem: Inglês

10.1016/j.carres.2012.03.042

1873-426X

Ludovico Pontoni, Massimiliano Fabbricino,

Electrochemical Analysis and Applications

Arsenic removal has become a relevant concern due to the final confirmation of its behaviour as chronic human carcinogen, corresponding to an ever-increasing contamination of water, soil and crops in many parts of the world. Developing easily accessible removal strategies is therefore a primary environmental matter. Chitosan and chitosan derivatives show good adsorption performances against arsenic removal and are considered low cost products, easily obtainable. This review provides a summary of recent advances of the application of these compounds in the area of sorption sciences for arsenate and arsenite removal from water, focusing on equilibrium and kinetic mechanisms.