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RESEARCH PRODUCT

Metal Oxides for Removal of Arsenic Contaminants from Water

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description

Arsenic (As), one of the highest harmful pollutants found in drinking/groundwater, is owing to have unfavourable impacts, for example, skin disease, on human health. The new Environmental Protection Agency (EPA) assigned the maximum contaminations of arsenic in groundwater is 10μg/L, and several drinking water plants are needing extra treatment to accomplish this standard. In recent years, several researchers have been attempting to discover practical and expendable adsorbents for some water filtration systems that are utilized in many arsenic endemic territories. Metal oxide-based adsorbents had been proved to be the best strategies for arsenic expulsion/removal. This chapter reviews the removal of both arsenite (As III) and arsenate (As V) species from drinking/groundwater. Also, we give an overview of traditionally applied strategies to expel both arsenic species to incorporate coagulation-flocculation, oxidation, and membrane techniques. More focus has been given to adsorption methods, type of adsorption and factors affecting adsorption. Moreover, brief summary has been given for an advancement on the efficacy of different nanomaterials and composites for the polluted water treatment. A basic examination of the most generally explored nanomaterials is highlighted.