Abstract
The world famous Dal Lake located in north-east of Srinagar city is facing accelerated degradation due to influx of sewage, surface runoff and other anthropogenic activities which have converted this lake into a waste sink. In order to conserve the lake some remedial measures have been taken up by Lakes and Waterways Development Authority (LAWDA) including interception of sewage through sewers and installation of small scale sewage treatment plants (STPs). This study was aimed at to check the wastewater treatment efficiency of the sewage treatment plants installed by LAWDA. Out of the three (3) installed STPs catering 42% of the sewage load to the lake one located at Laam Nishat having maximum capacity to treat 4.5 MLD of wastewater was selected for analysis of untreated and treated wastewater. The results showed satisfactory removal of BOD, however, the removal of pollutants like COD, TDS and TSS was found to be low against the designed removal efficiency of the sewage treatment plant.
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