Document Type : Review Paper
Authors
1 RSK Environment Ltd., 18 Frogmore Road, Hemel Hempstead HP3 9RT, UK.
2 R.M.D. Engineering College, Chennai 601206, Tamil Nadu, India
3 Department of Home Science, School of Sciences, The Gandhigram Rural Institute- (Deemed to be University), Gandhigram 624302, Dindigul, Tamil Nadu, India.
4 Department of Biomarine Resource Valorisation, Division of Food Production and Society, Norwegian Institute of Bioeconomy Research (NIBIO) Torggarden, Kudalsveien 6, No-8027, Bodo, Norway.
Abstract
Sustainable source-based hydrogels are now paid much importance for managing water pollution due to their distinctive chemical and physical properties like hydrophilicity, biocompatibility, viscoelasticity, superabsorbancy, softness, fluffiness, and biodegradability. Alginate-based hydrogels can incorporate much water due to their hydrophilic nature.Water pollution often changes groundwater, resulting in the inability to use it. Alginate-based gels remove pollutants through adsorption/desorption, transport, and other conventional techniques. Alginate-based hydrogels can incorporate much water due to their hydrophilic nature. Their composites have been demonstrated to control different water pollutants like inorganic, organic, and pathogenic microbes from various water streams in unique structural forms like a flat membrane, hollow fibber, microspheres, gels, foams, nanofibers, Calcium and sodium alginate-based hydrogel along with other materials like activated charcoal, zeolite, bentonite, graphene, biochars and composites have been proved to be effective blend in managing heavy metal pollutants.This review summarizes the results obtained from the sustainable removal of contaminants from water through the alginate-based hydrogel and the challenges associated with it for practical application in the future.
Graphical Abstract
Highlights
- Alginate-based hydrogels can incorporate much water due to their hydrophilic nature
- Alginate-based composites have unique structural forms like flat membranes, hollow fiber, microsphere etc.
- Alginate composites are demonstrated to control inorganic, organic, and pathogenic microbes from water streams
- Alginate is from plant source and could provide an edge over synthetic fossil fuel-based materials
Keywords
Main Subjects
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