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Biosorptive Removal of Hexavalent Chromium from Aqueous Industrial Solutions by a Novel Wood Apple Shell Powder Biomass

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Abstract:

A novel wood apple shell powder (WASP) biomass was used to remove Cr(IV) from aqueous solutions. Study revealed that WASP removed 50 mg/l of Cr(VI) with >99% efficiency. Optimum parameters for maximum biosorption were: pH 2-4, contact time 60 min and biomass quantity 1g/10 ml. Interestingly, it was observed that loading capacity of WASP was higher as compared to conventional activated charcoal. Equilibrium sorption capacity of WASP increased with increasing initial concentration of Cr(VI) from 5-300 mg/L. Biosorption by WASP conformed to the Langmuir and Freundlich adsorption isotherms. Desorption of Cr(VI) took place with >80% efficiency. Continuous mode study in packed bed column showed that WASP has immense potential as “biomaterial” for the removal/recovery of Cr(VI) from aqueous industrial solutions.

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Info:

Periodical:

Advanced Materials Research (Volume 1130)

Pages:

689-692

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.689

Citation:

Cite this paper

Online since:

November 2015

Authors:

Nilisha Itankar, Yogesh Patil*

Keywords:

Biosorption, Hexavalent Chromium, Low-Cost Biomass, Wood Apple Shell Powder Biomass

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* - Corresponding Author

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