الفهرس 
CHAPTER I: IntroductionOnly 14 pages are availabe for public view
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Abstract
In this work, the treatment of oily wastewater produced from car wash processes using advanced technology is investigated. The results showed that the turbidity and Chemical Oxygen Demand (COD) values dramatically decrease by using the proposed treatment process which consists of coagulation, flocculation, sand filtration, and oxidation followed by sand as well activated carbon filtration. Moreover, the operating conditions were optimized. It was found that 200 ppm of ferric chloride; as a coagulant, and 1 ppm of potassium permanganate; as an oxidant, under original raw car wash wastewater pH were the optimum doses. The COD and turbidity of the final treated wastewater were reduced by almost 88% and 100%, respectively. A prototype with 15 L capacity was designed and fabricated to investigate the large scale treatment ability and test the continuous mode of the proposed treatment methodology.