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. 2018 Apr 15;150:1-17.
doi: 10.1016/j.ecoenv.2017.12.026. Epub 2017 Dec 16.

Removal of Emerging Contaminants From the Environment by Adsorption


Removal of Emerging Contaminants From the Environment by Adsorption

Carmalin Sophia A et al. Ecotoxicol Environ Saf. .


Emerging contaminants (EC's) are pollutants of growing concern. They are mainly organic compounds such as: pesticides, pharmaceuticals and personal care products, hormones, plasticizers, food additives, wood preservatives, laundry detergents, surfactants, disinfectants, flame retardants, and other organic compounds that were found recently in natural wastewater stream generated by human and industrial activities. A majority of ECs does not have standard regulations and could lead to lethal effects on human and aquatic life even at small concentrations. The conventional primary and secondary water treatment plants do not remove or degrade these toxic pollutants efficiently and hence need cost effective tertiary treatment method. Adsorption is a promising method worldwide for EC removal since it is low initial cost for implementation, highly-efficient and has simple operating design. Research has shown that the application of different adsorbents such as, activated carbons(ACs), modified biochars (BCs), nanoadsorbents (carbon nanotubes and graphene), composite adsorbents, and other are being used for EC's removal from water and wastewater. The current review intends to investigate adsorption process as an efficient method for the treatment of ECs. The mechanism of adsorption has also been discussed.

Keywords: Activated carbon; Adsorption; Biochar; Carbon nanotubes; Emerging contaminants; Graphene; Water.

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