Kurdistan University of Medical Sciences Journal of Advances in Environmental Health Research 2676-3478 14 1 2026 03 01 Treated Wastewater Reuse for Agricultural Irrigation: A Case Study in Saveh City 26 34 242849 10.34172/jaehr.1424 EN Mokhtar Mahdavi Student Research Committee, Saveh University of Medical Sciences, Saveh, Iran Water and Wastewater Quality Monitoring and Control Center, Kermanshah Province Water and Wastewater Company, Kermanshah, Iran 0000-0001-5438-3447 Heshmatollah Ahmadi Human Resources and Research of Water and Wastewater Company of Kermanshah Province, Kermanshah, Iran Fatemeh Jalouli Student Research Committee, Saveh University of Medical Sciences, Saveh, Iran Melika Memari Student Research Committee, Saveh University of Medical Sciences, Saveh, Iran Mozhgan Farzmarzi Student Research Committee, Saveh University of Medical Sciences, Saveh, Iran Ali Jamalvandi Water and Wastewater Quality Monitoring and Control Center, Kermanshah Province Water and Wastewater Company, Kermanshah, Iran Ali Torabi Human Resources and Research of Water and Wastewater Company of Kermanshah Province, Kermanshah, Iran Islamic Azad University of Kermanshah, Kermanshah, Iran Mokhtar Vaisi Water and Wastewater Finance Department, Kermanshah Water and Wastewater Company, Kermanshah, Iran Journal Article 2025 03 14 <strong><span>Introduction:</span></strong><span> Using treated wastewater for farming irrigation is a strategic way to address water shortages. While it offers the benefit of providing nutrients to crops, its use poses health risks unless pathogens are sufficiently reduced to comply with safety standards. This study assessed the feasibility of reusing treated municipal wastewater from Saveh City, Iran, for agricultural purposes.</span> <strong><span>Methods:</span></strong><span> In a descriptive-analytical study, the samples were collected from the inlet and outlet of the Saveh wastewater treatment plant during spring and summer 2024. Physical, chemical, and biological parameters were analyzed according to the Standard Methods for the Examination of Water and Wastewater.</span> <strong><span>Results: </span></strong><span>The treated effluent complied with the Iranian agricultural standards for key physicochemical parameters, including pH, turbidity, chloride, and Chemical Oxygen Demand (COD). The Sodium Adsorption Ratio (SAR) was 5.28 and sodium percentage (Na%) was 53, indicating low sodium hazard and excellent water quality for irrigation. However, total and fecal coliform levels (26,000 and 6000 MPN/100 mL, respectively) exceeded permissible limits. The study calculated that the treated wastewater could irrigate approximately 194 hectares of wheat.</span> <strong><span>Conclusion: </span></strong><span>While the treated wastewater from Saveh is chemically suitable for agricultural reuse, its microbial quality requires enhancement through disinfection (e.g., UV, ozone) or additional treatment prior to use to ensure public health safety.</span> https://jaehr.muk.ac.ir/article_242849_25c9232c52277fd26a679ac01d590e6b.pdf