Equilibrium and Isotherm study on chromium (VI) removal from simulated waste water using peel sunflower as adsorbent | ||
| Journal of The Iraqi University | ||
| Article 1, Volume 3, Issue 36, December 2016, Pages 616-631 | ||
| Author | ||
| Dr Farqad Talib Najim | ||
| Abstract | ||
| Abstract Peel sunflower shell was used as an adsorbent to determine its feasibility for the removal of chromium (VI). Various parameters such as pH, contact time, initial metal concentration and adsorbent dosage were investigated to determine the bio sorption performance. Equilibrium was attained within 120 minutes and maximum removal of 98 % was achieved under the optimum conditions at pH=2. The adsorption phenomenon demonstrated here was monolayer represented by Langmuir isotherm model with correlation coefficient (R) equal to 0.9945 and Freundlich isotherm model with correlation coefficient (R) equal to 0.9877. The results of the present study indicated that Peel love sunflower shell can be employed as adsorbent for the effective removal of hexavalent chromium economically. | ||
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