کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997234 | 1459905 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Startup and operating characteristics of an external air-lift reflux partial nitritation-ANAMMOX integrative reactor
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Startup and operating characteristics of an external air-lift reflux partial nitritation-ANAMMOX integrative reactor Startup and operating characteristics of an external air-lift reflux partial nitritation-ANAMMOX integrative reactor](/preview/png/4997234.png)
چکیده انگلیسی
The differences in the physiological characteristics between AOB and ANAMMOX bacteria lead to suboptimal performance when used in a single reactor. In this study, aerobic and anaerobic zones with different survival environments were constructed in a single reactor to realize partitioned culture of AOB and ANAMMOX bacteria. An external air-lift reflux system was formed which used the exhaust from the aeration zone as power to return the effluent to the aeration zone. The reflux system effectively alleviated the large pH fluctuations and promoted NO2â-N to rapidly use by ANAMMOX bacteria, effectively inhibiting the activity of NOB. After 95 d of running, the nitrogen removal rate increased from the initial 0.21 kg/(m3·d) to 3.1 kg/(m3·d). FISH analyses further demonstrated that AOB and ANAMMOX bacteria acquired efficient enrichment in the corresponding zone. Thus, this type of integrative reactor may create the environments needed for the partial nitritation-ANAMMOX processing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 238, August 2017, Pages 657-665
Journal: Bioresource Technology - Volume 238, August 2017, Pages 657-665
نویسندگان
Xiang Li, Yong Huang, Yi Yuan, Zhen Bi, Xin Liu,