کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7079825 | 1459995 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of carbon-nitrogen ratio on nitrogen removal in a sequencing batch reactor enhanced with low-intensity ultrasound
ترجمه فارسی عنوان
اثرات نسبت کربن-نیتروژن به حذف نیتروژن در یک راکتور دسته بندی توالی بهبود یافته با سونوگرافی با شدت کم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
A sequencing batch reactor (SBR) enhanced with low-intensity ultrasound was designed to study the removal of nitrogen under different carbon-nitrogen (C/N) ratios. The results showed that the removal efficiencies of CODCr and nitrogen were inversely proportional to C/N ratios. The CODCr of the effluent in the control reactor (CR) and the low-intensity ultrasound-enhanced reactor (UER) were lower than 40 mg Lâ1. With a decrease in C/N ratio, the NH4+-N removal load of the CR showed little change, while the NH4+-N removal load of UER increased from 21.2 to 56.1 mg NH4+-N/g mixed liquid suspended solids per day. To further understand effects of low-intensity ultrasound, the denaturing gel gradient electrophoresis (DGGE) analysis showed that the similar coefficients of the community structures in the UER and CR were 86%, 52% and 29% when the C/N ratios were 15:1, 10:1, 5:1, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 148, November 2013, Pages 128-134
Journal: Bioresource Technology - Volume 148, November 2013, Pages 128-134
نویسندگان
Ruofei Jin, Guangfei Liu, Chunling Li, Rongjuan Xu, Hongyang Li, Lunxiang Zhang, Jiti Zhou,