کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7079989 | 1459995 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Start-up of the completely autotrophic nitrogen removal process using low activity anammox inoculum to treat low strength UASB effluent
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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: Start-up of the completely autotrophic nitrogen removal process using low activity anammox inoculum to treat low strength UASB effluent Start-up of the completely autotrophic nitrogen removal process using low activity anammox inoculum to treat low strength UASB effluent](/preview/png/7079989.png)
چکیده انگلیسی
The start-up of the completely autotrophic nitrogen removal process was examined in a sequencing batch reactor (SBR) using low activity anoxic ammonium oxidation (anammox) inoculum. The SBR received effluent from an upflow anaerobic sludge blanket (UASB) that treated low strength wastewater. The volumetric nitrogen loading rate (vNLR) was first 0.24 ± 0.11 kg N mâ3 dâ1 and then reduced to 0.10 ± 0.02 kg N mâ3 dâ1. The average specific anammox activity was 2.27 ± 1.31 mg N (gVSS h)â1, at 30 °C representing an increase of 161% compared to the inoculum. The decrease in vNLR did not significantly affect anammox activity, but resulted in a decrease of denitrifying heterotrophic activity to very low levels after the first 30 days owing to the decrease of organic loading rate (OLR). Fluorescence in situ hybridization (FISH) analysis confirmed the stable presence of anammox bacteria in biomass. Numerous filamentous microorganisms were present, several of which were in a state of endogenous respiration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 148, November 2013, Pages 467-473
Journal: Bioresource Technology - Volume 148, November 2013, Pages 467-473
نویسندگان
S. Malamis, E. Katsou, N. Frison, S. Di Fabio, C. Noutsopoulos, F. Fatone,