الفهرس 
titelOnly 14 pages are availabe for public view
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Abstract
Shortage of irrigation water sources in Egypt brings out the issue of managing all the available water resources and to re-use the non-conventional water resources such as agricultural drainage water. Adsorption has been found to be one of the most effective and economical method with high potential for removal, recovery and recycling of contaminants from agricultural drainage water. Determining the effect of irrigation with treated agricultural drainage water on plant and soil’s chemical and physical properties was studied. The treatment of agricultural drainage water by adsorption onto Kaolinite or kaolinite –humic complex was carried out by using fixed bed column model. Total Organic Carbon, heavy metals, EC, cations, anions and pH were determined before and after treatment process. Agricultural drainage water purification occurred with flow rate of 70 ml/hour for each 10 g kaolinite or kaolinite –humic complex. Results showed that the Kaolinite –humic complex was much better in treatment of agricultural drainage water than Kaolinite where humic acid increased the total active and binding sites. Pot experiment was conducted to study the influence of irrigation with treated and non-treated agricultural drainage water on yield and chemical composition of Jew’s Mallow plant and soil’s chemical and physical properties. Plant and Soil analysis showed great deterioration changes in plant and soil properties due to irrigation with agricultural drainage water. The results of this study showed that the treatment of the drainage water with the modified clay resulted in a significant reduction of TDS, heavy metals and organic contaminants which in turn enhanced the chemical properties of the treated agricultural drainage water as well as growth and health features of plants. Keywords: Kaolinite; Humic acid; Agricultural drainage water; Adsorption.