کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
627793 | 1455471 | 2008 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Feasibility of employing ultrasound for on-line membrane fouling control in an anaerobic membrane bioreactor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ultrasound was applied to the control of membrane fouling development on-line in an anaerobic membrane bioreactor (AMBR). Experimental results showed that the higher the sludge concentration, the longer the ultrasonic irradiation time should be for membrane fouling control. When the AMBR operated under the conditions of crossflow velocity of 0.75m.sâ1, ultrasonic power intensity of 0.122W.cmâ2, sludge concentrations of 4 g.Lâ1 and 6 g.Lâ1, the feasible sonication on/off times for membrane fouling control were 1 min/60 min and 3 min/ 60min, respectively. The operational experiments with the AMBR system showed that the membrane fouling was effectively controlled with ultrasonic application, and the total filtration resistance was only 30% of that without ultrasonic irradiation. Furthermore, ultrasonic irradiation in this study has slightly negative effect on the anaerobic bacterial activity, but this did not lead to obvious decrease of COD removal rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 219, Issues 1â3, 25 January 2008, Pages 203-213
Journal: Desalination - Volume 219, Issues 1â3, 25 January 2008, Pages 203-213
نویسندگان
Pengzhe Sui, Xianghua Wen, Xia Huang,