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Environ Sci Pollut Res Int. 2014 May;21(10):6603-11. doi: 10.1007/s11356-014-2566-8. Epub 2014 Feb 6.

Removal of acutely hazardous pharmaceuticals from water using multi-template imprinted polymer adsorbent.

Author information

1
Department of Chemical Engineering, National Institute of Technology Karnataka, Suratkal, 575205, India.

Abstract

Molecularly imprinted polymer adsorbent has been prepared to remove a group of recalcitrant and acutely hazardous (p-type) chemicals from water and wastewaters. The polymer adsorbent exhibited twofold higher adsorption capacity than the commercially used polystyrene divinylbenzene resin (XAD) and powdered activated carbon adsorbents. Higher adsorption capacity of the polymer adsorbent was explained on the basis of high specific surface area formed during molecular imprinting process. Freundlich isotherms drawn showed that the adsorption of p-type chemicals onto polymer adsorbent was kinetically faster than the other reference adsorbents. Matrix effect on adsorption of p-type chemicals was minimal, and also polymer adsorbent was amenable to regeneration by washing with water/methanol (3:1, v/v) solution. The polymer adsorbent was unaltered in its adsorption capacity up to 10 cycles of adsorption and desorption, which will be more desirable in cost reduction of treatment compared with single-time-use activated carbon.

PMID:
24499987
DOI:
10.1007/s11356-014-2566-8
[Indexed for MEDLINE]

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