Abstract

THE REMOVAL OF CADMIUM FROM AQUEOUS SOLUTIONS BY USING ALBIZIA LEBBECK SEEDS

Doaa Sameer, Prof. Dr. Nabeel K. Al-Ani and Hiba A. Jasim*

Abstract

One of the major environmental problems is a polluted of water by toxic heavy metals. Using the biological treatment an effective way to remove heavy metals because it is environmental friendly, economic, easy to implement and do not require the expertise. The aim of the current study is estimate the efficiency of low cost adsorbents for Cadmium removal , these adsorbents consist of Albizzia lebbeck seeds in treatment of aqueous solution that contains heavy metals (Cd) with other pollutants by adsorption technique, and study the effect of a number of parameters(Cd concentration, contact time and pH values). The sample of plant waste (Albizzia lebbeck seeds) was tested to determine its activity which gives the best performance in heavy metals removal and other pollutants (TSS, TDS). Adsorption tests showed the seed adsorbents had significant heavy metal removal efficiency. Higher removal efficiency for Cd was 95% occurred at 2ppm and pH 5 after 2hr.

Keywords: Albizzia lebbeck, Adsorption, Cadmium, aqueous solution.