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Kailash Daga ¹, Santosh Chaudhary ¹, V. Pallavi ¹

Affiliations
1 Enviro-Industrial Lab., Department of Chemistry, M.B.M. Engineering College, J. N.V. University, Jodhpur, Rajasthan, IN

Abstract

The study was aimed at investigating the use of activated carbon prepared from Salvadora persica (ACSP) and the results were compared with the polyvinyl alcohol coated carbon prepared from Salvadora persica (PVAC-SP). Various factors affecting the adsorption process including solution pH, contact time, adsorbent dose and initial dye concentration were studied in a batch process. PVAC-SP was found to be most effective at pH 8. The kinetics of adsorption process was well described by the pseudo 2^nd order kinetics model. The maximum adsorption of dye with ACSP and PVAC-SP were found to be 71.3% and 92.7% respectively.

Keywords

Alvadora persica, Activated Carbon, Chromotrope 2R, Adsorption Isotherm

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Kailash Daga ¹, V. Pallavi ¹, Santosh Chaudhary ¹

Affiliations
1 Enviro-Industrial Laboratory, Deptt. of Chemistry, M.B.M. Engineering College, Jodhpur-342 011, Rajasthan, IN

Abstract

Wastewater containing heavy metal pollutants cause direct toxicity, both to human and other living organisms due to their presence beyond specified limits. Industrial effluents containing nickel play an important role in polluting water bodies. The removal of nickel ions from aqueous solution by polyvinyl alcohol coated carbon prepared from Datura stramonium as an adsorbent is reported in this paper. The effect of pH, initial metal ion concentration, contact time and adsorbent dose were studied. The adsorption capacity of Datura stramonium was dependent on the pH of the nickel solution, maximum nickel removal (78.9 %) was obtained at pH of 6. The adsorption experimental data fit well with the Langmuir and Freundlich adsorption isotherms. The kinetics of the adsorption process follows the pseudo second-order kinetics model. The results indicate that Datura stramonium can be employed as a low cost alternative to commercial adsorbents in the removal of nickel (II) from wastewater.

Keywords

Adsorption, Wastewater, Heavy Metals, Nickel, Adsorption Isotherms.

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