کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7081191 | 1460000 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced biological nutrient removal in sequencing batch reactors operated as static/oxic/anoxic (SOA) process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhanced biological nutrient removal in sequencing batch reactors operated as static/oxic/anoxic (SOA) process Enhanced biological nutrient removal in sequencing batch reactors operated as static/oxic/anoxic (SOA) process](/preview/png/7081191.png)
چکیده انگلیسی
An innovative static/oxic/anoxic (SOA) activated sludge process characterized by static phase as a substitute for conventional anaerobic stage was developed to enhance biological nutrient removal (BNR) with influent ammonia of 20 and 40Â mg/L in R1 and R2 reactors, respectively. The results demonstrated that static phase could function as conventional anaerobic stage. In R1 lower influent ammonia concentration facilitated more polyphosphate accumulating organisms (PAOs) growth, but secondary phosphorus release occurred due to NOx- depletion during post-anoxic period. In R2, however, denitrifying phosphorus removal proceeded with sufficient NOx-. Both R1 and R2 saw simultaneous nitrification-denitrification. Glycogen was utilized to drive post-denitrification with denitrification rates in excess of typical endogenous decay rates. The anoxic stirring duration could be shortened from 3 to 1.5Â h to avoid secondary phosphorus release in R1 and little adverse impact was found on nutrients removal in R2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 143, September 2013, Pages 204-211
Journal: Bioresource Technology - Volume 143, September 2013, Pages 204-211
نویسندگان
Dechao Xu, Hongbo Chen, Xiaoming Li, Qi Yang, Tianjing Zeng, Kun Luo, Guangming Zeng,