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Equilibrium Kinetic and Isotherm Studies for the Removal of Lead (II) From Wastewater Using Borassus flabellifer Coir Powder

D. Krishna*, G. Santhosh Kumar**, D. R. Prasada Raju***

*-*** Department of Chemical Engineering, M V G R College of Engineering, Vizianagaram, Andra pradesh, India.

Periodicity:November - January'2020
DOI : https://doi.org/10.26634/jfet.15.2.16671

Abstract

The removal of lead (II) from wastewater using Borasus flabellifer coir powder as adsorbent has been investigated in this paper. The experiment was carried out in batch mode to find out the effect of several process parameters like agitation time (0-120 min), adsorbent dosage (0.05 to 6.0 g in 50 mL solution), and concentration of lead ion (20-100 mg/L); temperature (273-323 K), and pH (3-10). The wastewater samples are analyzed quantitatively using Atomic Absorption Spectrometer (AAS). The equilibrium agitation time was achieved at 40 minutes. The maximum percentage removal of lead (II) was achieved at pH=8. The adsorption kinetic studies follow second order. Both Langmuir and Freundlich models for lead adsorption onto adsorbent are proved to be the best fit observed from high regression coefficient R² value. The maximum metal uptake is 34.482 mg/g. The thermodynamic parameters such as change in Gibb's free energy (ΔG), Enthalpy (Δh) and Entropy (Δs) reveal the feasibility, irreversibility, spontaneity, and endothermic nature. Scanning Electron Micrographs of the adsorbent indicates the surface morphology and its porous nature. The results obtained in this study illustrate that the adsorbent is expected to be an effective and economically viable adsorbent for lead removal from wastewater.

Keywords

Radiation absorption, MHD, chemical reaction, ramped temperature, porous medium.

How to Cite this Article?

Krishna, D., Kumar, G. S., and Raju, D. R. P. (2020). Equilibrium Kinetic and Isotherm Studies for the Removal of Lead (II) From Wastewater Using Borassus flabellifer Coir Powder. i-manager’s Journal on Future Engineering and Technology , 15(2), 37-47. https://doi.org/10.26634/jfet.15.2.16671

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