Removal Of Lead From Water Using Eggshell Powder As An Adsorbent

Abstract

Considerable research has been carried out over the last decade on the protection against plant and animal life degradation. Several big cities contribute to increase this problem, as they are sources of industrial effluents. In order to reduce the environmental pollution, a number of studies have been considered to minimize the problems caused by the commonly employed treatment of metal bearing effluents [1]. The traditional methods for removing heavy metals have several disadvantages. Chemical precipitation leads to the production of toxic sludge. Due to the economics of dealing with large volumes of liquids and of solvent losses, solvent extraction is limited to streams containing more than I g/l of the targeted heavy metal. Application of the ion-exchange process is rather expensive due to the cost of synthetic ion exchange resins. Furthermore, they are not always selective enough to allow an effective recovery of heavy metals present in the waste [2].