Journal :   Asian Journal of Research in Chemistry

Volume No. :   6

Issue No. :  2

Year :  2013

Pages :   121-130

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Affinity of Bio-Adsorbents Derived from Annona squamosa, Cassia auriculata and Ficus religiosa towards Chromate in Polluted Waters.



Address:   O. Sree Devi and K. Ravindhranath*
Department of Engg. Chemistry and Post Graduate Chemistry, Bapatla
Engineering College (Autonomous), Bapatla-522101, Guntur Dt., A.P., India
*Corresponding Author
DOI No:

ABSTRACT:
Leaves, stems or barks of Annona squamosa, Cassia auriculata and Ficus religiosa are identified to have remarkable tendency of sorption towards Chromate at low pH values. Physicochemical parameters such as pH, time of equilibration and sorbent concentration have been optimized for the maximum removal of Chromate from polluted waters. More than 94.0% of Chromate extraction is noted from simulated waters in all the sorbents at optimum conditions of extraction. Common Cations even in fivefold excess, have marginal effect on the extraction. Sulphate and Phosphate are interfering while the rest of the anions of the study have almost ‘nil’ effect. The methodologies developed are successfully applied to samples collected from industrial effluents.
KEYWORDS:
Chromium (VI), pollution control, bio-sorbents, applications.
Cite:
O. Sree Devi, K. Ravindhranath. Affinity of Bio-Adsorbents Derived from Annona squamosa, Cassia auriculata and Ficus religiosa towards Chromate in Polluted Waters. Asian J. Research Chem. 6(2): February 2013; Page 121-130.
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