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Latin American applied research

Print version ISSN 0327-0793


RODRIGUEZ, M.S. et al. Calcareous chitin: a novel low-cost sorbent for cadmium (II). Lat. Am. appl. res. [online]. 2012, vol.42, n.3, pp.311-318. ISSN 0327-0793.

This research deals on a new low-cost porous sorbent named calcareous chitin (CaCh). CaCh is prepared by alkaline treatment of crustacean exoskeleton to produce a porous matrix of chitin and calcium carbonate free of original proteins. SEM-EDX, X-ray, FT-IR were used to characterize the material. CaCh structure is more porous than that of chitin. Adsorption studies demonstrated its capability to remove Cd(II) from waters. The Langmuir equation fitted the adsorption isotherms well. Due to its easy, rapid and low cost preparation and its adsorption characteristics calcareous chitin can be used as low cost sorbent of heavy metals ions like cadmium for wastewater treatment.

Keywords : Calcareous Chitin; Chitin; Sorption; Cadmium; Low-Cost Sorbent; Wastewater Remediation.

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