QUALITATIVE AND QUANTITATIVE CHARACTERIZATION OF URBAN WASTEWATER IN ORDER TO ASSESS ITS PERFORMANCE (CASE STUDY: ILAM SEWAGE TREATMENT PLANT)
AFSHAR ALIHOSSEINI *
Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
SOMAYEH ZOLFAGHARI
Faculty of Medicine Sciences, Islamic Azad University, Tehran Medical Branch, Tehran, Iran.
VAHID PIROUZFAR
Young Researchers and Elite Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
*Author to whom correspondence should be addressed.
Abstract
In this study, the efficiency of wastewater treatment plant of Ilam was investigated in a period of time. In order to measure the pollution indicators such as: temperature, Coliforms, turbidity, pH, COD, BOD, Cl-, TSS, TDS and DO, samples of the effluent sampling were done periodically. The results of this study show that measured values of operating parameters such as: pH, BOD, COD, NTU, DO (with average of: 8.34, 66.45, 106.4, 80.15, 7.4 mg/l) are consistent with EPA's standards in the field of re-use for agricultural purposes and irrigating, However, Chloride parameters and TSS with the averages of 60.7 and 455.7 (mg/l) do not comply. In addition COD, BOD, TSS and Chloride parameter analysis discharging effluent into surface water does not match to EPA's standards. An essential proceeding to reduce parameters, BOD, COD and TSS should be done.
Keywords: Municipal sewage, Ilam sewage work, pollution indexes