Assessment Of Waste Water quality Of Sewage Treatment Plant

Abstract

The present study was conducted to evaluate the efficiency and performance of the wastewater Sewage treatment plant at Gazipur City Corporation. The performance of this plant is an essential parameter to monitor because the treated effluent is discharged for irrigation purposes. Wastewater samples were collected from different unit operations of the plant. The main untreated outlet, primary treated outlet and the final outlet. These samples were analyzed for various physio-chemical characteristics such as pH, TDS, TSS, TS, hardness, alkalinity, DO, BOD. The results obtained have concluded that the waste water treatment plant is efficient in the treatment of waste water. After the final treatment, it is found that the treated water is satisfactory for irrigation. Dissolved oxygen was increased from zero (waste water) to 7.8 mg /liter after secondary treatment. Total alkalinity and biochemical oxygen demand to tend to decreased with secondary treatment. Total suspended solids and hardness decreased in treated water