Bio sorption Studies of Chromium Ions with Modified Chicken Feathers
Journal Title: Biomedical Journal of Scientific & Technical Research (BJSTR) - Year 2017, Vol 1, Issue 7
Abstract
Modified chicken feather has been used as biosorbent for removing chromium ions from aqueous solution. The adsorption capacity tests were performed on an equilibrium batch basis. The parameters such as contact time, biosorbent dose, pH etc were optimized and were found to be 2 hrs, 100 mg & pH 6.0. Equilibrium isotherms were analyzed for the adsorption process and Freundlich adsorption isotherm model was found to fit the data well. The kinetics of adsorption followed pseudo-second order model.Heavy metals such as Hg, Pb, As, Cr, etc are harmful to soil, water bodies and aquatic life. They are leached out mainly from industrial wastes, mines and research labs [1]. They produce acute toxicity in plants, animals and micro organisms. Due to bio accumulation and bio magnification through food chain they cause chronic effects even at lower concentrations. Heavy metals are generally removed from environment by precipitation, reverse osmosis, coagulation, flocculation etc [2-7]. These processes have many drawbacks, which include selective or partial removal of metal ions and high operational cost. Bio sorption can be used for effective removal of the heavy metals from environment. The major advantages of biosorption are low cost, high efficiency, regeneration, metal recovery etc. Bio sorption is largely influenced by pH, the concentration of biomass and the interaction time.
Authors and Affiliations
Rakesh KE, Rosy Antony
Keywords
Related Articles
- EP ID EP572281
- DOI 10.26717/BJSTR.2017.01.000558
- Views 183
- Downloads 0
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