Abstract
Majority of Industrial wastewater, both treated and untreated is being pumped into drains in Lahore; mainly converging to Hudiara drain. The same is already polluted when it enters Pakistan’s boundary by wastewater from India and as it passes through Lahore, it’s pollution levels are magnified by addition of mainly Charrar & Sattukatla Drain. In this study we performed weekly complete analysis of some Physicochemical and microbiological analysis of Hudiara drain on point of entry in Pakistan as well as the same for Charrar & Sattukatla Drains. It was observed that the organic loading of wastewater has increased 2-3 times in the last 10 years with maximum values of 1,406 and 413 mg/L obtained respectively. Major factor is the high concentration of suspended solids which ranged from 280 to 701 mg/L as well as high organic decomposition indicated by sulphides upto 23.85 mg/L. Moreover, the baseline pollution load of Hudiara Drain entering Pakistan as well as the pollution load our Industries and Adjacent canals exert directly and indirectly into Hudiara Drain.
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