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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/24725
Title: The utilization of agro-biomass/byproducts for effective bio-removal of dyes from dyeing wastewater: A comprehensive review
Authors: Mishra S.
Cheng L.
Maiti, Abhijit
Published in: Journal of Environmental Chemical Engineering
Abstract: The dyeing wastewaters are composed of complex chemical compositions, which are toxic and cause biotic risks. For eco-friendly remediation of such toxicants, agro-based materials are used as biosorbent/adsorbent and co-substrate in both physiochemical and biological treatment processes. The present study comprehensively reviews the efficacy of agro-biomass/byproducts (belonging to plants, microbes and animals) either as biosorbents (raw biomass) or adsorbents (modified biomass) for direct removal of dyes and their role as co-substrate to stimulate the biodegradation/decolourization of dyes by bacteria and fungi. In physiochemical process, agro-based biosorbents/adsorbents with porous structures and cellulosic content (≥ 40%) could exhibit excellent potential for removal of both ionic and non-ionic dyes from aqueous medium. Advancement of chemically modified agro-wastes in the form of bio-composites, or doped with nano-materials are used to enhance the sorption of dyes from wastewater in column-flow mode. In biological processes, co-substrate such as jack-fruit-seed-powder, sago-waste, and molasses can act as ě-donor, nutritional supplement, and solid-phase substratum for bacteria in dye decolourization medium, which reduces the color and organic loading in bio-Treated water. Such low-cost agro-based co-substrates could be used in bioreactors for biodegradation of dyes and coupled bio-energy production at industrial scale. However, it is required to investigate the potential of biosorbent for real-dyeing-wastewater treatment, comprehensive economic analysis of the agro-based bio-Treatment process, a suitable solid-phase co-substrate for immobilization of microorganism to reduce sludge, and reusability of agro-wastes for effective treatment of wastewater. © 2020 Elsevier Ltd.
Citation: Journal of Environmental Chemical Engineering, 9(1)
URI: https://doi.org/10.1016/j.jece.2020.104901
http://repository.iitr.ac.in/handle/123456789/24725
Issue Date: 2021
Publisher: Elsevier Ltd
Keywords: Adsorbents
Agro-wastes
Co-substrate
Dye decolourization
Wastewater
ISSN: 22133437
Author Scopus IDs: 55353346500
57235102000
23994098600
Author Affiliations: Mishra, S., College of Environment, Hohai University, Nanjing, Jiangsu Province, 210098, China, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, Uttar Pradesh, 247001, India
Cheng, L., College of Environment, Hohai University, Nanjing, Jiangsu Province, 210098, China
Maiti, A., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, Uttar Pradesh, 247001, India
Corresponding Author: Mishra, S.; College of Environment, China; email: saurabhmishra20057@gmail.com Cheng, L.; College of Environment, China; email: liucheng8791@hhu.edu.cn
Appears in Collections:Journal Publications [PE]

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