کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
624954 | 1455413 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of the change of soluble microbial products on membrane fouling in membrane bioreactor (MBR)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification of the change of soluble microbial products on membrane fouling in membrane bioreactor (MBR) Identification of the change of soluble microbial products on membrane fouling in membrane bioreactor (MBR)](/preview/png/624954.png)
چکیده انگلیسی
Comprehensive fouling propensity associated with the change of soluble microbial products (SMP), especially the concentration of SMP and the ratio of protein to polysaccharide (PN/PS) has been investigated in a lab-scale submerged microfiltration MBR. Results showed that the higher ratio of PN/PS induced less irreversible fouling and improved the interaction of protein and polysaccharide to form cake layer. The rejection efficiency of major components in SMP also increased with higher PN/PS ratios. Fouling mechanisms altered from combination of intermediate pore blocking and cake formation at initial stage to cake formation on the membrane surface during long-term operation. Moreover, the irreversible fouling resistance was found to be proportional to the concentration of SMP. Lower concentration of SMP and higher PN/PS ratio should be an effective strategy in releasing membrane fouling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 278, Issues 1â3, 1 September 2011, Pages 126-131
Journal: Desalination - Volume 278, Issues 1â3, 1 September 2011, Pages 126-131
نویسندگان
Meng Yao, Bradley Ladewig, Kaisong Zhang,