Abstract
In preliminary investigations, it was found that the quality of effluents with respect to EC, SAR and RSC from Kashmir Ghee Mills and Lyallpur Chemicals Ltd. was worse compared to those from other textile units (Nishatabad, Kohi-Noor and Dying units) and cereal grain processing industry (flour Mills and Rafhan Maize Products). Overall, the EC and RSC values of the main Paharang and Maduana drains at Chak No. 217/R.B. and Chak 225/R.B., t'espectively were much higher than the critical levels. The concentration of P was the highest in effluents from Lyallpur Chemicals Ltd. while that of K was the highest in effluent from Rafhan and Flour Mills. The concentrations of Fe, Mn, Cu, Zn, Pb and Ni were well below the safe limits in effluents from all the sources as well as in both the main drains. It seems that if these effluents are managed for EC, SAR and RSC problems, the macro and micro nutrient contents will be of considerable significance for agricult ure.
