کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5468502 1519038 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research paperThermal treatment of clay-based ceramic membranes for microfiltration of Acutodesmus obliquus
ترجمه فارسی عنوان
مقاله پژوهشی استفاده از تراشه های غشای سرامیکی بر پایه رس در میکرو فیلتر کردن Acutodesmus obliquus
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
چکیده انگلیسی


- Tubular ceramic membrane was prepared by extruding thermally treated clay (TC-1).
- TC-1 membrane had a larger mean pore size and a broader pore size distribution.
- The thermal treatment of the clay resulted in an increase in the porosity.
- TC-1 exhibited permeate flux of 0.0324 kg·m− 2·s− 1 and retention of 98.3% at 40 kPa.
- TC-1 membrane may be used to recover A. obliquus microalgae by microfiltration.

Tubular ceramic microfiltration membranes were prepared by extruding thermally treated clay (TC) and raw clay to form a porous tubular membrane with the addition of cationic manioc starch and toasted manioc flour. The influence of an applied thermal treatment on the proprieties of the clay and the microfiltration membranes was characterized by measuring the particle size distribution, pore size distribution, and mechanical strength and by conducting X-ray fluorescence analysis, X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and differential scanning calorimetry. The membranes were used for microfiltration of Acutodesmus obliquus microalgae with various applied pressures in the range of 2 × 104-1 × 105 Pa with a volumetric flow rate of 6.94 × 10− 5 m3·s− 1 at a temperature of 10 ± 5 °C. The efficiency of each of the ceramic membranes was evaluated in terms of the permeate flux for water and microalgae and the microalga retention. The addition of TC to the membrane resulted in an optimal microalga permeate flux of 3.24 × 10− 2 kg·m− 2·s− 1 and a microalga retention of 98.3% at 4 × 104 Pa and had positive impacts on the other proprieties measured. Overall, these results demonstrate a potential application of TC in ceramic membranes for crossflow microfiltration processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 150, 15 December 2017, Pages 217-224
نویسندگان
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