TREATMENT OF TEXTILE WASTE-WATER BY ELECTROCHEMICAL METHOD

Treatment of textile wastewaters from several dyeing and finishing mills by an electrochemical method is investigated. The batch experimental results are assessed in terms of color (turbidity) and COD reductions. Several operating variables, such as the wastewater conductivity, pH, power requirement and amount of polyelectrolyte added, are explored to ascertain their respective effects on the treatment efficiency. Optimum operating ranges for each of these operating variables are experimentally determined. The electrochemical method is found to be quite effective and is highly competitive as an alternative chemical method for treating textile wastewater. A continuous experimental apparatus is designed and test runs are performed using the operating conditions obtained in the batch experiments. The preliminary data show similar satisfactory results to those of the batch runs.