مهندسی شیمی ایران

مهندسی شیمی ایران

ساخت و مشخصه‌یابی غشاهای سرامیکی لوله‌ای کامپوزیتی بااستفاده‌از مواد سبز برای تصفیۀ آب

نوع مقاله : مقاله پژوهشی

نویسندگان
1 کارشناسی ارشد مهندسی شیمی، دانشگاه صنعتی تبریز
2 استاد مهندسی شیمی، دانشگاه صنعتی تبریز
چکیده
در سال­های اخیر غشاهای سرامیکی به‌دلیل مقاومت مکانیکی، شیمیایی و حرارتی بالا، همراه‌با تخلخل و شار عبوری مطلوب، محل توجه صنایع و محققان قرارگرفته‌است. بنابراین، هدف تحقیق حاضر تولید غشاهای سرامیکی آلومینایی با روش قالب‌ریزی ژل بهمنظور تصفیۀ آب بوده‌است. براساس نتایج حاصل، غشای سرامیکی ساختهشده، دارای ۴۵ درصد تخلخل باز، ریزساختاری عاریاز هرگونه نقص، اندازۀ حفره‌های زیر 700 نانومتر، چگالی 1/7 و استحکام خمشی بالای 3/5 مگاپاسگال بوده‌است. عملکرد غشاهای سرامیکی لولهای شکلدهیشده با غشاهای سرامیکی لولهای تجاری مقایسه‌شد. نتایج نشانداد که شار عبوری غشای سنتزی درمقایسه‌با نمونه‌های تجاری پایین‌تر است، که احتمالاً ناشیاز وجود حفره‌های درشت‌تر در ریزساختار غشاهای تجاری است. وجودنداشتن حفره‌های بزرگ در ریزساختار غشای سنتزی دلیل عملکرد برتر آن در حذف کدورت و بار میکروبی درمقایسه‌با نمونه‌های تجاری است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Fabrication and Characterization of Tubular Composite Ceramic Membranes Using Green Materials for Water Treatment

نویسندگان English

ٍEbrahim Gholizadeh 1
A. A. Babaluo 2
1 MSc. inf Chemical Engineering, Tabriz University of Technology
2 Professor of Chemical Engineering, Tabriz University of Technology
چکیده English

In recent years, ceramic membranes have attracted the attention of industries and researchers due to their high mechanical, chemical, and thermal resistance, high porosity and permeability. The main aim of this research, is the production of alumina ceramic membranes by gel casting method for water purification. Based on the results, the manufactured ceramic membrane has 45% open porosity, defect free microstructure, pore size is below 700 nm, bulk density (g⁄cm3) is 1.7, and bending strength is above 3.5 MPa. Performance evaluation of the tubular-shaped ceramic membranes compared to commercial tubular ceramic membranes, indicated that the flux of synthesized membrane was lower than that of the commercial samples, which is likely attributed to the presence of larger pores in the microstructure of the commercial membranes. The absence of larger pores in microstructure of the synthesized membrane confirms its superior performance in removing turbidity and microbial loading compared to commercial samples.

کلیدواژه‌ها English

Ceramic Membrane
Tubular Design
Water and Wastewater Treatment
Gel Casting
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