A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Elimination of Chromium(VI) from Waste Water Using Various Biosorbents
Abstract In recent years, pollution of water due to the presence of heavy metal ions is a serious socio-environmental problem caused by the discharge of industrial effluents. Their toxicity, non-biodegradable nature and accumulation in food chains are a matter of concern and thus their removal deserves urgent attention for a cleaner biosphere. Chromium, a major heavy metal pollutant, in its hexavalent form is highly toxic and persistent. Conventional methods like precipitation, evaporation, ion-exchange, electrodialysis and membrane processes incur high costs, need high energy, require chemical reagents and are often inadequate for large-scale industrial applications. Biosorption represents a biotechnological innovation and an economical strategy for elimination of chromium from industrial discharge. The objective of this review study is to contribute in the search for promising cost-effective adsorbents and their utilization possibilities, from various materials of agricultural and biological origin such as sugarcane bagasse, sawdust, rice hull, etc., for the elimination of chromium from polluted water. Removal of chromium(VI) from wastewaters by algal, fungal and bacterial biomass is also discussed.
Elimination of Chromium(VI) from Waste Water Using Various Biosorbents
Abstract In recent years, pollution of water due to the presence of heavy metal ions is a serious socio-environmental problem caused by the discharge of industrial effluents. Their toxicity, non-biodegradable nature and accumulation in food chains are a matter of concern and thus their removal deserves urgent attention for a cleaner biosphere. Chromium, a major heavy metal pollutant, in its hexavalent form is highly toxic and persistent. Conventional methods like precipitation, evaporation, ion-exchange, electrodialysis and membrane processes incur high costs, need high energy, require chemical reagents and are often inadequate for large-scale industrial applications. Biosorption represents a biotechnological innovation and an economical strategy for elimination of chromium from industrial discharge. The objective of this review study is to contribute in the search for promising cost-effective adsorbents and their utilization possibilities, from various materials of agricultural and biological origin such as sugarcane bagasse, sawdust, rice hull, etc., for the elimination of chromium from polluted water. Removal of chromium(VI) from wastewaters by algal, fungal and bacterial biomass is also discussed.
Elimination of Chromium(VI) from Waste Water Using Various Biosorbents
Ghosh, Shubhrima (author) / Mitra, Dipannita (author)
2018-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
Biosorbents , Heavy metal , Hexavalent , Biomass Environment , Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution , Urban Ecology , Hydrology/Water Resources , Water Policy/Water Governance/Water Management , Climate Change/Climate Change Impacts , Urban Geography / Urbanism (inc. megacities, cities, towns)
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