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Abstract

Biological materials for the removal of heavy metal ions from waste water are important due to their extreme toxicity towards aquatic life and humans. Microorganisms and low cost natural biosorbents are being increasingly studied for the removal of heavy metal ions from aqueous solution. In this work, Eichhornia Crassipes leaf powder was taken as a low cost biosorbent for the sorption of Copper(II). The various parameters like Initial metal ion concentration, Initial pH, Temperature and Biosorbent dosage were studied in a batch  reactor. Equilibrium was reached after 24 h of contact time. The optimum values  of initial Copper concentration, initial pH, temperature and biomass loading are found to be 50mg/l, 4,30°C and 5g/l . Under this optimised condition a maximum percentage removal of 92% and specific uptake of 10mg/g was obtained for Cu(II) sorption

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