Adsorption of Pb (II) ions on Tamarindous indica seeds as a low cost abundantly available natural adsorbent

摘要

Heavy metals are the largest class of contaminants and also most difficult to treat. Lead pollution impacts all the systems of the human body. Many of the methods utilized to remove lead from west water. In the present study attempts have been made to use Tamarindous indica seeds powder (200 mesh size) for the removal of Pb (II) ion from waste water and industrial effluents. The air dried powder of Tamarindous indica seeds act as phenol formaldehyde resin. The experimental adsorbent material is economically feasible and easily available. In present investigation the phenol formaldehyde resin prepared from Tamarindous indica seeds .It has been used as the adsorbent and carried out batch mode experiments to study the effects of contact time and pH on the removal of lead with the variation of dose of the adsorbent. The Pb (II) adsorbed in presence of 1% PAR at pH 6.5.It shows 100% adsorption on 5 gm resin at 20 min. The paper also discusses the applicability of adsorption isotherm.