STUDY ON IMPROVING THE EFFICIENCY OF SEWAGE TREATMENT PLANTS AT SRM UNIVERSITY, INDIAPALJOR NAMGYAL BHUTIA, K. PRASANNA AND J.S. SUDARSANAbstract SRM University Kattankulathur campus hosts three Sewage Treatment Plants (STP) within the premises which are located behind the dental college, behind the SRM General hospital and beside girls hostel. These plants are designed and constructed such that it minimizes and removes organic matter, nutrients, solids (both suspended and dissolved), disease carrying organisms and other domestic sewage constituents before it is disposed on land. It was revealed from the performance study of the STPs from October 2013 to March 2014 that the capacity of STP I is lesser compared to the daily inflow and the removal efficiency of all the three treatment plants in terms of TDS was very low to almost negligible. In STP I BOD, COD, TSS, TDS and turbidity average removal efficiency were 78.30, 80.71, 58.225, 2.61 and 73.78 %, while in STP II BOD, COD, TSS, TDS and turbidity average removal efficiency were 44.55, 42.80, 50.96, 3.786 and 70.59% and in STP III BOD, COD, TSS, TDS and turbidity average removal efficiency were 85.88, 88.975, 60.19, 8.29 and 92.22%. The order of efficiency of the three sewage treatment plants were STP III > STP II >STP I. Additionally, the methods for improvement in efficiency is discussed.
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