Chitosan as a potential soil amendment to remediate metal contaminated soil – a characterisation study

Kamari, A., Pulford, I. and Hargreaves, J.S.J. (2011) Chitosan as a potential soil amendment to remediate metal contaminated soil – a characterisation study. Colloids and Surfaces B: Biointerfaces, 82(1), pp. 71-80. (doi: 10.1016/j.colsurfb.2010.08.019)

Abstract

The potential of chitosan, a fishery waste-based material, as a soil amendment to clean-up metal contaminated soil was investigated. Chitosan was treated using glutaraldehyde (GLA), epichlorohydrin (ECH) and ethylene glycol diglycidyl ether (EGDE) as cross-linking reagents to enhance its chemical stability in acidic media and to improve its physical properties. Cross-linking treatment had significant effects on chitosan surface area, pore diameter, surface morphology and crystallinity. Interaction with Ag(I), Pb(II) and Cu(II) decreased the crystallinity of the materials and changed their surface morphology significantly. FTIR analysis confirmed that N and O atoms served as binding sites for the metal ions. Chitosan and treated chitosans were able to bind metal ions, even in the presence of K+, Cl− and NO3−, which are dominant ions in soil. Therefore, remediation of metal contaminated soil using chitosan and cross-linked treated chitosans as soil amendments is f

• Item Type: Articles
• Keywords: Contaminated soil, soil amendment, chitosan, cross-linked chitosans, characterisation
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hargreaves, Professor Justin and Pulford, Dr Ian
• Authors: Kamari, A., Pulford, I., and Hargreaves, J.S.J.
• Subjects: Q Science > QD Chemistry
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Colloids and Surfaces B: Biointerfaces
• ISSN: 0927-7765
• ISSN (Online): 1873-4367
• Published Online: 18 August 2010