نوع مقاله : مقاله علمی پژوهشی
نویسندگان
1 گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه صنعتی خاتم الانبیاء بهبهان، بهبهان، ایران
2 گروه مهندسی شیمی، دانشکده فنی مهندسی، دانشگاه صنعتی خاتم الانبیا (ع) بهبهان، بهبهان، ایران
3 شرکت آب و فاضلاب استان خوزستان، تصفیهخانه آب شرب شهرستان بهبهان – واحد کنترل کیفیت و فرآیند، بهبهان، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study presents a rigorous evaluation of the efficacy of membrane filtration as an advanced technology for producing drinking water from two distinct water sources. The investigation began with a comprehensive comparative analysis of the physicochemical and biological parameters of raw water from the Khairabad and Maroon rivers. This baseline assessment revealed a significant disparity in mineral content, with the Maroon River exhibiting a substantially higher Total Dissolved Solids (TDS) concentration of 1393 mg/L compared to the Khairabad River's 739 mg/L. Subsequently, the performance of the membrane filtration process was assessed for both water types. The results demonstrated the notable consistency of this technology. The system effectively reduced turbidity to below 0.7 NTU and consistently maintained a Silt Density Index (SDI) below 0.03, indicating superior particulate removal and low fouling potential. A key advantage observed was the membrane's selective removal capability, which successfully eliminated undesirable particulates and microbial load while preserving the fundamental chemical composition and beneficial minerals of the water. A comparative evaluation of membrane cleaning mechanisms further revealed that backwashing was significantly more effective than air scouring. The backwashing protocol achieved a remarkable recovery of over 94% of the initial membrane flux, underscoring its superiority in maintaining long-term operational efficiency. Microbiologically, membrane filtration was successful in removing a major portion of the microbial load. Utilizing this method as a complementary pre-treatment stage prior to chlorination can be an optimal strategy that removes the bulk of contaminants, subsequently requiring only a low dose of disinfectant to provide a residual protective effect throughout the distribution network.
کلیدواژهها [English]
)