Brassica Oleracea Botrylis Leaves (BOBL) Powder as Bioadsorbent to Remove Ni (II) Ions from Wastewater: Kinetic, Isotherm and Thermodynamic Studies

Journal Title: Universal Journal of Environmental Research and Technology - Year 2016, Vol 6, Issue 3

Abstract

Removal of Ni(II) ions from aqueous solution was carried out using brassica oleracea botrylis leaves (cauliflower leaves) and was characterized by SEM, XRD and EDAX techniques. The effect of solution pH, contact time, initial metal ion concentration and temperature was investigated in a systematic manner. Various thermodynamic parameters such as ∆G°, ∆H° and ∆S° have also been evaluated and it has been found that the adsorption process was spontaneous, endothermic and randomness in nature. The equilibrium data were analyzed by using Langmuir, Freundlich, Temkin and D-R isotherm models. Among these isotherm models Freundlich model was fitted well with its good correlation coefficient. The experimental data were analyzed by kinetic parameters such as Lagergen pseudo-first order and pseudo-second order models and found that the biosorption of Ni(II) followed pseudo-second order model by its good correlation coefficient values which are very close to unity. Desorption and recovery of the adsorbent was found that 12%. The results concluded that the BOBL powder was an efficient, eco-friendly and economically cheap adsorbent in the removal of Ni(II) ions from the aqueous solution.

Authors and Affiliations

R. Vashantha, Jeyavathana Samuel, M. Vincy Amutha Snolin

Keywords

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  • EP ID EP31948
  • DOI -
  • Views 322
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How To Cite

R. Vashantha, Jeyavathana Samuel, M. Vincy Amutha Snolin (2016). Brassica Oleracea Botrylis Leaves (BOBL) Powder as Bioadsorbent to Remove Ni (II) Ions from Wastewater: Kinetic, Isotherm and Thermodynamic Studies. Universal Journal of Environmental Research and Technology, 6(3), -. https://europub.co.uk/articles/-A-31948