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Bachelor Thesis from the year 2017 in the subject Chemistry - Other, grade: A, , language: English, abstract: This study is based on the investigation of the biosorptive potential of Vigna radiata for removal of copper (II) and cadmium (II) from aqueous medium. Effects of different parameters like amount of dosage, agitation time, pH and temperature of the medium on adsorption process were studied. It was observed that Vigna radiata showed maximum adsorption potential for copper and cadmium at pH 5 and 7, respectively. Different models like Langmuir, Freundlich, Tempkin and DR were employed to analyze the insight of adsorption process of heavy metals. Maximum adsorption capacity for copper and cadmium were found to be 2.426 mg/g and 6.82 mg/g respectively. Biosorption process of Vigna radiata for removal of heavy metals followed pseudo 2nd order kinetics. Thermodynamic parameters of adsorption process indicated the feasibility and spontaneity of adsorption process. Desorption ofVigna radiata biomass was also done using HCl solution as eluting agent and adsorption potential of recycled adsorbent was also studied.
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