Performance Evaluation of WUPA WasteWater Treatment Plant Idu-Industrial Area, Abuja

Abstract

This paper evaluates the performance efficiency of WUPA waste water treatment plant. Wastewater samples were collected and monitored in the raw influents, primary effluents and final treated effluents at three different locations of WUPA waste water treatment plant using standard methods for physiochemical characteristic analysis. The results revealed that the average concentrations of DO, BOD5 20, COD, TSS, TDS, NH4 -N, NO3 -N and PO4 -p in the final effluent of WUPA WWTP were 6.7, 22, 50, 13.1, 20, 3.8, 2.73, and 2.4 mg/L respectively and that of electrical conductivity, temperature and pH are 271μs (cm), 25.1% and 7.42 respectively which fell within the standard recommended by WHO for effluent discharged into water bodies. Values of TDS and NO3 -N however increase from the raw influent to the final treated effluent instead of decreasing which shows the inefficiencies of the system to effectively reduce the concentration of these parameters. The average removal efficiencies of BOD5 20, COD, TSS and NH4 -N were found to be 87.28%, 85.88%, 91.44% and 38.71% respectively. The effect of the final treated effluent on the water quality of WUPA river was also determined by analyzing the physiochemical characteristic of the surface water sample collected at two sampling locations 30m away upstream from the discharge point before the effluent meets the river water (S4) and 30m away downstream from the exist point after the effluent meets the river water (S5). Though there were slight increases in the concentrations of the most parameters downstream after the effluent meets the WUPA River, the study has revealed that there was no adverse effect on the physiochemical characteristics of the receiving water.