Thesis (M.Sc.) - Cairo University - Faculty of African Postgraduate Studies - Department of Natural Resources

This study is aimed at dealing with the assessment of changes in physical and chemical characteristics and heavy metals of each of water and soil. The results of the wastewater analyses showed that soluble cations values in increased in all samples compared with Nile water (control). Wastewater, however, had the highest values of EC, SAR and pH with an increase in chlorides and sulfates concentration. In general, heavy metals values in wastewater were increase depending on the heavy metals type.It was noticed that clay present highest in first layer in all sites compared with second layer. Application of wastewater caused an increase in the hydraulic conductivitys,Soil bulk density and thus in a decreas soil porosity. The reduction of soil porosity at the depth of 30-60 cm was increased as compared to depth of 0-30. The results indicated that the EC and soluble ions values in soil were increased all sites. It was find that EC, cations and anions values in surface soil increased more than sub-surface at all sites. Generally, soil salinity levels were decreased in soil surface layers than subsurface. Consequently, the high EC values soil subsurface layer can be explained by salts accumulation as a consequence of leaching. It was noticed that soil pH values decreased with irrigation soil from El Gizawia canal. The available N, P and K, concentrations of soils at all sites were increased. Concerning the layers, it was found that the concentration of heavy metals decreases with soil depth. However, in the wastewater treatment, the accumulation of heavy metals under study was decreased with increasing of soil depth. Heavy metals were affected by some soil physical characteristics. Concerning the relations between heavy metals and all parameters of the used data indicated that heavy metals were either positively affected or negatively correlated among on parameters under study. Soils OM, pH and CEC had significant positive correlation with heavy metals except EC possessed significant negative correlation with att metals. There was correlation between clay, B.D and T.P and NPK in soil. The results exhibited that clay had significant positive correlation with N and K, while in case of phosphorus, they gave negative correlation

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