مجله آب و فاضلاب

مجله آب و فاضلاب

ساخت غشای نانوکامپوزیت با افزودن نانوذرات اصلاح شده زئولیت به‌منظور تصفیه نفت از پساب‌های نفتی با استفاده از فرایند اولترافیلتراسیون

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی دکترا، گروه مهندسی شیمی، واحد امیدیه، دانشگاه آزاد اسلامی، امیدیه، ایران
2 استادیار، گروه مهندسی شیمی، واحد امیدیه، دانشگاه آزاد اسلامی، امیدیه، ایران
3 استادیار، گروه مهندسی شیمی، واحد گچساران، دانشگاه آزاد اسلامی، گچساران، ایران
10.22093/wwj.2026.580483.3550
چکیده
نقش بسیار مؤثر جداسازی غشایی در تصفیه پساب‌های نفتی ثابت شده است، اگرچه رسوب‌گذاری همچنان یک چالش پایدار است. در این پژوهش اختلاط نانوذرات زئولیت S-β در یک غشای اولترافیلتراسیون، تشکیل یک نانوکامپوزیت برای مقابله با رسوب و افزایش بازیابی شار آب بررسی شد. نانوذرات متخلخل با استفاده از روش‌های سل- ژل هیدروترمال سنتز شدند که دارای سطح قابل‌توجه 450 مترمربع برگرم و اندازه‌های منافذی از 50 تا 175 نانومتر بر اساس نتایج BET بودند. این نانوذرات با استفاده از تکنیک وارونگی فاز در غشاها در غلظت‌های مختلف ادغام شدند. وجود S-زئولیت در غشاء از طریق آنالیزهای FITR، EDX وSEM تأیید شد. غشای نانوکامپوزیتی S-β1 خواص ضد رسوبی فوق‌العاده‌ای را به‌ویژه در غلظت‌های بیشتر پساب نفتی، از خود نشان داد که در مقایسه با سایر غشاها این غشاء، بازیابی شار آب 100 درصد در غلظت ppm50 و 72 درصد در غلظت ppm 1000 را ثبت کرد. این موفقیت را می‌توان به افزایش آب‌دوستی و اندازه منافذ بهینه غشاء (متوسط منافذ nm 3±13) نسبت داد که به‌طور مؤثر مانع تشکیل رسوب می‌شود. نتایج به‌دست‌ آمده مزایای قابل‌توجه نانوکامپوزیت را در کاهش رسوب‌گذاری و بهبود بازیابی شار در تصفیه پساب‌های نفتی نشان می‌دهد.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Synthesis and Characterization of Anti-Fouling Ultrafiltration Nanocomposite Membranes Integrated with S-β Zeolite Nanoparticles for Oily Wastewater Treatment

نویسندگان English

Fakher Mousavi 1
Mostafa Narimani 2
Daryoush Emadzadeh 3
1 PhD. Candidate, Dept. of Chemical Engineering, Omidiyeh Branch, Islamic Azad University, Omidiyeh, Iran
2 Assist. Prof., Dept. of Chemical Engineering, Omidiyeh Branch, Islamic Azad University, Omidiyeh, Iran
3 Assist. Prof., Dept. of Chemical Engineering, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
چکیده English

Membrane separation has been proven to be highly effective in oily wastewater treatment, although fouling remains a persistent challenge. This study explored the incorporation of S-βzeolite nanoparticles into an ultrafiltration membrane, forming a nanocomposite to tackle fouling and enhance water flux recovery. Porous nanoparticles were synthesized using sol-gel and hydrothermal methods, featuring a remarkable surface area of 450 m2/g and pore sizes ranging from 50 to 175 nm according to BET results. These nanoparticles were integrated into the membranes at various concentrations using the phase inversion technique. The presence of S-zeolite in the membrane was confirmed through FTIR, EDX and SEM analyses. The S-β1 nanocomposite membrane demonstrated exceptional antifouling properties, particularly at higher concentrations of oily wastewater. Its outstanding performance is attributed to its enhanced hydrophilicity and average pore size of 13±3 nm, which prevents fouling formation. Compared to other membranes, S-β1 exhibited remarkable water flux recovery, reaching100% at an oil concentration of 50 ppm and 72% at 1000 ppm. These results highlight the significant advantages of this nanocomposite in reducing fouling and improving the water flux recovery in oily wastewater treatment.

کلیدواژه‌ها English

Membrane, Nanocomposite, Ultrafiltration, Wastewater Treatment, S-&beta
Zeolites
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