کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
623644 1455359 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced EDCs removal by membrane fouling during the UF process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Enhanced EDCs removal by membrane fouling during the UF process
چکیده انگلیسی


• Filtration behavior of synthetic secondary effluent followed cake filtration law.
• Membrane fouling formed by synthetic secondary effluent enhanced EDCs removal.
• Clean and fouled membranes rejected EDCs mainly by adsorption and size exclusion.

In the paper, fouling behavior of a synthetic secondary effluent was explored and influences of membrane fouling and operation pressures (25, 30, 50, and 75 kPa) on rejection of five endocrine disrupting chemicals (EDCs) (estrone, 17β-estradiol, estriol, 17α-ethynyl estradiol, and bisphenol A) were explored during the membrane filtration process using 100 kDa polyvinylidene fluoride (PVDF) ultrafiltration (UF) membrane under constant pressure dead-end filtration system. Fouling behavior of humic compounds was found to obey the rule of cake filtration. Fouled UF membrane revealed enhanced EDCs removal rate by 0.0% to 58.3% corresponding to different EDCs. Cakes grew under various pressures had different specific resistances and porosities. Cake formed under 50 kPa had the lowest porosity 56.8% but had the best EDCs removal efficiency, which may be attributed to adsorption and size exclusion. Besides, EDCs revealed different penetration abilities through fouled membrane with E3 being the most easy to flow out. It can be concluded that 50 kPa may be suitable for UF process operation aiming at EDCs removal and appropriate flux.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 336, 3 March 2014, Pages 18–23
نویسندگان
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