Although the Punjab Pollution Control Board (PPCB) is advocating the zero-discharge policy for industries in Ludhiana,Dr V K Guha,a retired professor of chemical engineering at the Indian Institute of Technology (IIT),Delhi,said it was not necessary.
Guha,a consultant for the Federation of Dyeing Factories Association,visited 12 factories on Saturday to check shortcomings in their effluent treatment plants.
Out of the dozen industrial units,only four need total modification of their treatment plants. Effluent treatment plants in four factories were running in perfect order while four others needed a slight modification, he said.
The PPCB complains that the dyeing units dont run their treatment plants continuously. This lapse leads to the spread of pollutants in groundwater and the MC sewer,which ultimately joins the Sutlej river. So I laid stress on the importance of running the treatment plants on a continuous basis, said Guha.
Most units have up-to-the-mark treatment plants and the quality of discharged water was also good,said Guha. I dont think there is any need of the zero-discharge policy,which is a very costly affair for industrialists, he added.