| Risk Assessment and Prioritization of Failure Modes in Drinking Water Disinfection Systems Using FMEA |
| کد مقاله : 1388-IWWA |
| نویسندگان |
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ایوب ریاحی فارسانی *1، فاطمه رستمی2 1کارشناس آب و فاضلاب 2کارمند |
| چکیده مقاله |
| Microbial drinking-water quality directly affects human health, and water contamination remains an important cause of waterborne disease worldwide [1,2]. The World Health Organization emphasizes that drinking-water safety should be ensured through preventive risk management and continuous control of the entire supply chain, from source to consumer [3]. Among water-treatment processes, disinfection is the final and one of the most important barriers against pathogens. Its primary purpose is to remove or inactivate pathogenic microorganisms before water enters the distribution network [4]. Chlorine, sodium hypochlorite, calcium hypochlorite, chlorine dioxide, ozone, and ultraviolet (UV) radiation are commonly used drinking-water disinfection methods [5,6]. The performance of disinfection systems depends on raw-water quality, turbidity, pH, contact time, disinfectant dose, and the proper operation of dosing equipment. Failure in any of these factors may reduce disinfection efficiency and increase the risk of pathogen entry into the distribution network [4,5]. Systematic risk-assessment methods have therefore received increasing attention in the water industry. Risk assessment identifies hazards, analyzes their likelihood, estimates the severity of consequences, and prioritizes corrective actions [7,8]. Failure Mode and Effects Analysis (FMEA) is a recognized risk-assessment tool that identifies potential failure modes, evaluates their effects, and prioritizes them according to severity, occurrence, and detectability [9,10]. Applying FMEA to drinking-water disinfection systems can help identify vulnerable points, reduce equipment failures, prevent decreases in disinfection performance, and improve drinking-water safety. Integrating risk assessment with operation and maintenance programs can also improve equipment reliability and system resilience under routine and emergency conditions. |
| کلیدواژه ها |
| Risk Assessment , Drinking Water, disinfection |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
