Abstract
ABSTRACT This paper reports the feasibility of chromolaena odorata leaf powder as adsorbent forThis paper reports the feasibility of chromolaena odorata leaf powder as adsorbent forthe adsorption of Cu (II) metal ions from aqueous solutions at various conditions. Variousindustries discharges heavy metals in water bodies, affect the aquatic life, human health and overallecosystem adversely. So, it is needed to remove the heavy metals present in water using low costtechniques. In this direction, bio-sorption is identified. Batch experimental studies were carriedout for the removal of Cu (II) from waste water by adsorption on chromolaena odorata leaf powder.The effect of several process parameters like the agitation time, the adsorbent size, adsorbentdosage, initial copper concentration, and the effect of solution pH on adsorption are studied. BothLangmuir and Freundlich models for Cu (II) adsorption onto chromolaena odorata leaf powder areproved to be best fit based on high regression coefficient R2 value. The adsorption kinetic modelsfollow the second order. The maximum metal uptake observed at pH 6 for copper removal is10.416 mg/g.
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