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Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

1
Department of Applied Chemistry and Chemical Engineering; University of Dhaka, Dhaka 1000, Bangladesh
2
Fiber and Polymer Science, North Carolina State University, Campus Box 7616, Raleigh, NC 27695, USA
3
National Institute of Textile Engineering and Research, Nayarhat, Savar, Dhaka 1000, Bangladesh
*
Authors to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(1), 16; https://doi.org/10.3390/jcs4010016
Received: 30 December 2019 / Revised: 17 January 2020 / Accepted: 20 January 2020 / Published: 1 February 2020
(This article belongs to the Special Issue Feature Papers in Journal of Composites Science in 2019)
In recent years, there has been increasing interest in developing green biocomposite for industrial wastewater treatment. In this study, prawn-shell-derived chitosan (CHT) and kaolinite rich modified clay (MC) were used to fabricate biocomposite beads with different compositions. Prepared composite beads were characterized by FTIR, and XRD, and SEM. The possible application of the beads was evaluated primarily by measuring the adsorption efficiency in standard models of lead (II) and methylene blue (MB) dye solution, and the results show a promising removal efficiency. In addition, the composites were used to remove Cr (VI), Pb (II), and MB from real industrial effluents. From tannery effluent, 50.90% of chromium and 39.50% of lead ions were removed by composites rich in chitosan and 31.50% of MB was removed from textile effluent by a composite rich in clay. Moreover, the composite beads were found to be activated in both acidic and basic media depending on their composition, which gives a scope to their universal application in dye and heavy metal removal from wastewater from various industries. View Full-Text
Keywords: chitosan; Bijoypur clay; biocomposite; heavy metal; chromium (VI); lead (II); methylene blue dye; tannery effluent; textile effluent chitosan; Bijoypur clay; biocomposite; heavy metal; chromium (VI); lead (II); methylene blue dye; tannery effluent; textile effluent
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MDPI and ACS Style

Biswas, S.; Rashid, T.U.; Debnath, T.; Haque, P.; Rahman, M.M. Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent. J. Compos. Sci. 2020, 4, 16.

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