investigation of quality and quantitive charectetristics sewage of municipal housetreatment in the performance municipal housetreatment(case study:housetreatment Eyvan city)

Today, due to the problem of water scarcity and droughts in the country, in many wastewater projects in the country, reuse of wastewater for irrigation and agricultural use and discharge to surface water are among the main objectives of these projects. In general, sewage Refined as an unconventional water source, a water source is safe even under drought conditions. In the present study, the performance of urban wastewater treatment plant,Eyvan County, was investigated over a period of 6 months. In order to measure pollution indices such as:T, coliform, turbidity, cations including(Na+,Ca2+,Mg2+), anions(F-,Cl-,NO2-,NO3-,Br-,PO43-,SO42), Heavy metals (Zn, Ni, Cr, Cu,Pb,Cd and Co), pH, COD, BOD5, TSS, TDS, DO were periodically collected from wastewater, Then, the data were analyzed with the standards of the Iranian Environmental Protection Agency and its reuse for agricultural use and irrigation and discharge to surface water. The results of this study indicate that the measured values of operational parameters such as:Na+,Ca2+,Mg2+,F-,Cl-,NO2-,NO3-,Br-,PO43-,SO42-, heavy metals (Zn, Ni, Cr, Cu,Pb,Co and Cd), pH, COD, BOD5, TSS, TDS ,T,turbidity, total coliform and Egg parasites , With an average of:150/3,79/56,88/49,./16, 48/79,2/16, 18/12, ./081,./95, 73/49,( ./152, ≤./015, ≤./015, ./016, ≤./015, ≤./015,and ≤./015),7/76, 13/1,9/12,8/51,412/39,16/76,1/92, 3 and 0. The measured parameters correspond to the environmental organization standards for reuse in agriculture and irrigation, as well as for entering the surface waters. Finally, the performance of the city s water purifier is appropriate.