REMOVAL OF HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE: MODELING AND OPTIMIZATION

Hooshyar Hossini
2016 International Journal of Pharmacy & Technology   unpublished
The aim of this work was the application of polyaniline as adsorbent for removal of hexavalent chromium from aqueous solution. Response surface method (RSM) as a mathematical technique was used for modeling and optimazed the considerable parameters. The operating parameters such as initial chromium concentration, adsorption time and pH were evaluated. Maximum chromium removal was 11.51 mg/g at the optimum condition of initial pH 6.23, initial Cr +6 concentration 92.52 mg/L, and contact time
more » ... nd contact time about 19 min. According to statistical analysis, R 2 (0.75), Adjusted R 2 (0.52), the mean adsorption uptake (8.25 mg/g) and standard deviation (2.09) were calculated.
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