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<p>Chromium (VI) biosorption using novel biosorbents from <em>Calotropis gigantea</em></p>

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Title Statement <p>Chromium (VI) biosorption using novel biosorbents from <em>Calotropis gigantea</em></p>
 
Added Entry - Uncontrolled Name Udayan, Aswathy
Thomas, Jubin
Sreekumar, Nidhin
 
Uncontrolled Index Term Alkali treatment, Bioaccumulation, Bioremediation, Carcinogenic, Crown flower, Giant milkweed, Heavy metals, Industrial pollution
 
Summary, etc. Biosorption of heavy metals using plant based materials contributes a significant role in reducing environmental pollution. Here, we investigated removal of hexavalent chromium metal [Cr (VI)] from an aqueous solution by alkali treated novel biosorbent prepared from <em>Calotropis gigantea </em>(L.) Dryand. ex W.T. Aiton leaves and flower. Batch studies were conducted to examine the process parameters. The effect of pH, biomass dosage, initial metal ion concentration, contact time was evaluated keeping temperature and agitation speed constant. As much as 70% removal of Cr (VI) was observed with a leaf biomass dosage of 4 g/L at pH 2.0 and initial metal ion concentration of 1.0 ppm. data obtained from the experiment were used to calculate the equilibrium data with two variable isothermal models. Freundlich and Temkin isotherm models suited the process for leaves and petals, respectively. Pseudo second order reaction suited in the kinetic study. The data obtained from the study suggests that biosorbents derived from <em>C. gigantea </em>has effective chromium biosorption capability. The results indicate that <em>C. gigantea </em>could be used as an efficient, cost effective and environmental friendly biosorbent for the treatment of chromium contaminated water bodies
 
Publication, Distribution, Etc. Indian Journal of Experimental Biology (IJEB)
2020-08-17 13:20:28
 
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http://op.niscair.res.in/index.php/IJEB/article/view/39417
 
Data Source Entry Indian Journal of Experimental Biology (IJEB); ##issue.vol## 58, ##issue.no## 08 (2020): [August 2020]
 
Language Note en