A CONTINUOUS FENTONS PROCESS FOR TREATMENT OF TEXTILE WASTE-WATER

Treatment of textile wastewaters from a large dyeing and finishing mil l by a continuous process of combined chemical coagulation, Fenton's r eagent and activated sludge process is investigated. The experimental results are assessed in terms of COD and colour (turbidity) reductions to determine the overall treatment efficiency of the continuous proce ss. Operating variables, such as pH, polyalumminum chloride (PAC) and polymer addition and treatment time are explored to determine their re spective effects on the treatment efficiency. Optimum range for the ab ove operating variables is experimentally obtained. Economic evaluatio n of the continuous Fenton's treatment method indicates that it is a m ethod which is highly competitive with conventional treatments practis ed in the textile industry.