A study by an NGO has found that out of Bengaluru’s 31 sewage treatment plants, only eight are monitored properly for chemical oxygen demand, biochemical oxygen demand, pH, total nitrogen, faecal coliform, ammoniacal nitrogen and suspended solids for wastewater treatment. ActionAid Association’s study found that the Bangalore Water Supply and Sewerage Board (BWSSB), which runs the sewage treatment plants, did not comply with the limits set by the Karnataka State Pollution Control Board (KSPCB) for the parameters. While the limit for total suspended solid—a parameter used to assess the quality…
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