USAGE OF AGRICUTURAL WASTES IN REMOVING HEAVY METALS FROM WASTEWATER

Abstract

This thesis has been carried out to study the efficiency of using agricultural wastes (untreated) in removing heavy metals from wastewater, The problem of the environmental pollution is created by the continuous and accelerated disposal of wastes. One of the main contaminants is the industrial wastewater. Most of industrial wastewater contains high concentration of toxic heavy metals. In this study, the adsorption method using raw agricultural wastes (palm waste fiber and output trimming tree (ficus)) to remove heavy metals Zn+2 and Cr(VI) from wastewater was made. It achieves removal ratios using palm waste fiber 93.67%, 89.20% for Zn+2 and Cr(VI), respectively. Also; it success in achieving removal ratio using output trimming tree (ficus) 68.67%, 77.80% for Zn+2 and Cr(VI). The thesis illustrated best removal efficiency in removing zinc and chromium using palm waste fiber, and output trimming tree (ficus)as adsorption material which is cheap material, these material can offers additional solution for the disposal of agricultural wastes and low cost in removing heavy metals from wastewater, which encourage the factories in using this method. The results explain that, the removal efficiency increased by increasing the adsorption contact time, and the flow rate were decreased.

SUPERVISORS Prof.Dr. Mohamed El Hosseiny El Nadi, Associate Prof. Dr. Nany Ali Hassan Nasr, Assistant Prof. Dr. Sayed Ismail Ali Ahmed.

KEY WORDS Wastewater Treatment, Chemical Treatment, Heavy Metals Removal, Absorption, Application of Agricultural wastes.