Single and Competitive Removal of Pb(II) in the Presence of Ni(II) using Polyacrylamide Grafted Rice Husk

In a quest to find efficient adsorbents for metal ions, studies on various metals have been of interest since the past several decades. The present study is focused removal Pb (II) ions from aqueous solution using poly acrylamide grafted rice husk by batch studies. Industrial waste waters generally contain as mixtures, therefore effect Ni Pb(II) mixtures Pb(II)+Ni(II) has also investigated. adsorbent prepared treatment with in presence N,N-methylene bis and potassium persulphate. characterised infrared spectral Maximum adsorption obtained 93% at pH 5, ion concentration 300mg/L 180mins 298K. Isotherm analyses show that both Langmuir Freundlich isotherm models are best obeyed. process endothermic spontaneous nature follows pseudo first order kinetics. Intraparticle diffusion occurs but not rate determining step. Application competitive model binary system shows supressed Ni(II) ions. Studies suggest effective can industrial applicability.