الفهرس 
Introduction and ObjectivesOnly 14 pages are availabe for public view
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Abstract
Textile industry uses a large quantity of chemicals and consumes huge quantities of water. Wastewater from textile industry can be considered the largest waste stream because of its large volume of wastes and different types of discharged wastewater including cleaning water; textile wastewater typically contains a complex mixture of chemicals, process water and noncontact cooling water. The amount of water used varies widely in the industry, depending on the specific processes operated at the mill, the equipment used and the prevailing management philosophy regarding water use because of the wide variety of process steps.
The goal of this work is to enable the textile industry to treat and reuse the wastewater from its textile washing operations using a simple and feasible technology. It also aims at preventing the pollution that results from this wastewater, protecting wastewater treatment facilities, and saving significant quantities of water for other domestic uses .The study deals with of the effect of chemical coagulants to treat the cotton textile wastewater produced from ”NILE GROUP COMPANIES FOR TEXTILES” ”NILE LENIN GROUP”. Wastewater samples were collected from a fixed point in the Plant, the head work structure after screening and grit removal, before entering the primary treatment process, bench scale experiment used is the Jar test, measuring pH Value, COD, TDS and SS. Dealing with the effect of adding a mix of chemical coagulants such as Lime & ferrous poly chloride (Ferrous chloride) and Anionic polyacrylamide with dose to reduce the value of COD.
Using a mix of Lime with dose 300 g / m3 & ferrous poly chloride (Ferrous chloride) with dose 200 g / m3 and Anionic polyacrylamide with dose 60 g / m3 was enough to reduce the COD value to be less than the allowable limit stated at law 44/2000 so, it can be considered the optimal dose.