Removal of methylene blue from aqueous solution using high performance calcium alginate/activated carbon membrane
International Journal of Clothing Science and Technology
ISSN: 0955-6222
Article publication date: 13 November 2019
Issue publication date: 18 May 2020
Abstract
Purpose
The purpose of this paper is to purify the wastewater in the garment industry.
Design/methodology/approach
The preparation of the calcium alginate (CA)/activated carbon (AC) composite membrane was achieved by vacuum freeze-drying and the cross-linking reaction between sodium alginate and CaCl2. Effective parameters in the methylene blue (MB) adsorption such as temperature, dose, contact time and pH were discussed. The adsorption properties of the composite membrane were investigated by isotherm, kinetics and thermodynamic analysis. The adsorption equilibrium data were described by the adsorption isotherm Langmuir model and the Freundlich model. The pseudo-first-order, pseudo-second-order and intra-particle diffusion equations were selected to evaluate the kinetics. The thermodynamic study described that the adsorption reaction was spontaneous and exothermic.
Findings
The AC/CA membrane is an efficient and powerful adsorbent to remove MB in printing and dyeing wastewater, and provides a new idea for the selection of adsorption materials for industrial printing and dyeing wastewater.
Practical implications
The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials.
Social implications
The paper contributes to its wider and convenientapplication in wastewater treatment.
Originality/value
Studies on the combination of CA and AC into adsorption membranes and for the removal of dyes from printing and dyeing wastewater have not been reported. A novel composite material is provided for treatment dyeing wastewater in garment production. The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials and contribute to its wider and convenient application in wastewater treatment.
Keywords
Acknowledgements
This work was supported by the National Natural Science Foundation of China (51672140), Natural Science Foundation of Shandong Province (ZR2015EM038) and Taishan Scholar Program of Shandong Province (201511029).
Citation
Zhang, X., Li, Y., Li, M., Zheng, H., Du, Q., Li, H., Wang, Y., Wang, D., Wang, C., Sui, K., Li, H. and Xia, Y. (2020), "Removal of methylene blue from aqueous solution using high performance calcium alginate/activated carbon membrane", International Journal of Clothing Science and Technology, Vol. 32 No. 3, pp. 307-321. https://doi.org/10.1108/IJCST-03-2019-0044
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited