University of the Punjab Conference Portal, Third International Conference on Engineering Sciences

Font Size:  Small  Medium  Large
Removal of lead (Pb+2) from waste water by adsorption using graphitic adsorebent
Mubeen khalid, Faseeh Mustafa, Nabeel Asad, Muaaz Farooq

Last modified: 2017-10-10

Abstract


The purpose of this paper is to study the removal of lead (Pb+2) from waste water by adsorption techniques using graphitic adsorbent. The adsorption of lead(II) on graphitic material has been studied in batch mode using flame atomic absorption spectroscopy for metal estimation. Concerned parameters like adsorbent dose, PH and contact time were investigated. From the results equilibrium time for this process is set to 30 minutes. Freundlich isotherm was employed to describe adsorption equilibrium.  The maximum amounts of lead(II) adsorbed (q), as evaluated by Freundlich isotherm was 18.55 mg per gram of graphitic material.PH is decreased because of the removal of some acidic radicals from the surface of the adsorbent. Study concluded that graphitic material has good potential as an adsorbent to remove toxic metals like lead from waste water. Graphitic material is regenerated by different methods and in future it can be easily regenerated by electrochemical method and it can be used again and again.