Nanomaterials for environmental burden reduction, waste treatment, and nonpoint source pollution control: a review |
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Authors: | Guobin Shan Rao Y Surampalli Rajeshwar D Tyagi and Tian C Zhang |
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Abstract: | Nanomaterials are applicable in the areas of reduction of environmental burden, reduction/treatment of industrial and agricultural
wastes, and nonpoint source (NPS) pollution control. First, environmental burden reduction involves green process and engineering,
emissions control, desulfurization/denitrification of nonrenewable energy sources, and improvement of agriculture and food
systems. Second, reduction/treatment of industrial and agricultural wastes involves converting wastes into products, groundwater
remediation, adsorption, delaying photocatalysis, and nanomembranes. Third, NPS pollution control involves controlling water
pollution. Nanomaterials alter physical properties on a nanoscale due to their high specific surface area to volume ratio.
They are used as catalysts, adsorbents, membranes, and additives to increase activity and capability due to their high specific
surface areas and nano-sized effects. Thus, nanomaterials are more effective at treating environmental wastes because they
reduce the amount of material needed. |
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