نشریه علمی فرآیند نو

نشریه علمی فرآیند نو

تصفیه پساب نفتی با استفاده از فرآیند ترکیبی جذب-میکروفیلتراسیون با غشاهای سرامیکی

نوع مقاله : ترویجی

نویسندگان
1 دانشگاه خلیج فارس بوشهر
2 دانشگاه خلیج فارس
چکیده
در این مطالعه چهار نوع غشای سرامیکی میکروفیلتراسیون مولیت، مولیت- آلومینا، مولیت- آلومینا- زئولیت و مولیت -زئولیت با استفاده از روش اکستروژن ساخته شدند. برای اطمینان از درست ساخته شدن غشاها، تست میکروسکوپ الکترونی، پراش پرتو ایکس، تخلخل سنجی، مقاومت مکانیکی و میانگین قطر حفره های غشاها روی آن ها انجام شد. سپس این غشاها در فرآیند ترکیبی جذب-میکروفیلتراسیون برای تصفیه پساب نفتی سنتزی به کار گرفته شدند. اثر غلظت کربن فعال و نوع غشاها بر شار تراوایی غشا، درصد حذف موادآلی، کدورت و COD بررسی شد. نتایج نشان داد که برای غشای مولیت، مولیت- آلومینا و مولیت- آلومینا- زئولیت بیشترین شار تراوایی در غلظت 800 میلی گرم بر لیتر و در غشای مولیت- زئولیت در غلظت 200 میلی گرم بر لیتر بدست آمده است. افزایش کربن فعال با هر غلظتی به سیستم میکروفیلتراسیون باعث افزایش راندمان حذف موادآلی، کدورت و COD در تمام غشاها می شود.
کلیدواژه‌ها

عنوان مقاله English

Oily wastewater treatment by using ceramic microfiltration-adsorption hybrid process

نویسنده English

yaser rasouli 1
1 student of chemical engineering in master of science degree at Persian gulf university
2 Persian Gulf University
چکیده English

In this study four types of ceramic microfiltration membranes were fabricated by extrusion and sintering method; Mullite, mullite-alumina, mullite-alumina-zeolite and mullite-zeolite membranes. In order to ensure the correct fabrication of membranes, fabricated membranes were subjected to characterization tests such as scanning electron microscopy (SEM), X-ray diffraction (XRD), porosimetery, mechanical strength and mean pore size calculation. Synthetic oily wastewater were treated by these membranes in microfiltration-adsorption hybrid process. Effect of Powdered Activated Carbon (PAC) concentration on the membrane permeation flux, oil removal efficiency, turbidity and COD removal were investigated. Results showed that in mullite, mullite-alumina and mullite-alumina-zeolite membranes, highest permeate flux obtained in 800 mg L-1 of PAC concentration. For mullite-zeolite membranes addition of 200 mg L-1 PAC concentration lead to highest permeate flux. Addition of PAC with any concentration in all membranes increased oil removal, turbidity and COD removal percent significantly.

کلیدواژه‌ها English

Ceramic membrane
Microfiltration
Powdered Activated Carbon (PAC)
Oily wastewater
Microfiltration-Adsorption Hybrid Process
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