Removal of cr (vi) Ions From Aqueous Solution By Using Adsorption Techniques Using Activated Carbon From Amorpophallus Paeoniifolius Isotherm and thermodynamic and kinetic Approach

The development of a country depends on industrialization and agricultural production. Due to this number of industries and factories like metal industries, dyeing, fertilizers, painting industries are coming continuously which creates severe environmental pollution especially water problem should be created and also cause global warming. To controlling of environmental pollution is very big challenge for scientists especially for chemist. The numbers of physical and chemical process are available to removing water pollution specifically causing by heavy metals like lead, chromium, copper, manganese, etc., Among these one of most low cost method of adsorption of heavy metals by using of activated carbon is prepared from unwanted waste plants. The aim of the present study is removing of chromium metal from contaminated aqueous solution by using roots and leaves ofAmorphophallus Paeoniifolius (senai kizhangu). The adsorption process is also affected by various factors like temperature, contact time, adsorbent dosage and pH of the solution is studied. The fitness of present study is also confirmed by verifying of Feundlich isotherm and Langmuir isotherm. The feasibility and nature of the process is also confirmed by thermodynamic parameters like ΔG, ΔH and ΔS. And also calculate kinetic parameters verifying by pseudo-second order kinetics, Elovich model and Intra-particle diffusion model. Finally, the adsorption process is confirmed by FT-IR, XRD of before and after adsorption process of adsorbent. Key notes: chromium, aaAP,conc.H2SO4 , isotherm, thermodynamic and kinetic parameters, FT-IR and XRD.