Nanoscale materials as sorbents for nitrate and phosphate removal from water |
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| Authors: | T K M Prashantha Kumar Trivene R Mandlimath P Sangeetha S K Revathi S K Ashok Kumar |
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| Institution: | 1.Department of Chemistry, School of Advanced Sciences,VIT University,Vellore,India;2.Department of Chemistry,Nandi Institute of Technology and Management Sciences,Bangalore,India;3.Department of Chemistry,KPR Institute of Science and Technology,Arasur, Coimbatore,India |
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| Abstract: | Excessive nitrogen (N) and phosphorous (P) release into run-off waters from human activities is a major cause of eutrophication. Several techniques are available to remove N and P-containing pollutants, such as chemical precipitation, biological treatment, membrane processes, electrolytic treatment, ion-exchange and adsorption. In order to remove low concentration levels of nitrate and phosphate, adsorption is a cost-effective solution. In this review, we present a list of nanoscale adsorbents such as zero-valent metal, metal oxides/metal hydroxides, and carbon-based materials. We discuss their adsorption capacities, isotherms, kinetics and mechanisms. |
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