کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7071563 | 1459932 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anammox for nitrogen removal from anaerobically pre-treated municipal wastewater: Effect of COD/N ratios on process performance and bacterial community structure
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کلمات کلیدی
TSSTNKSBRDGGEUASBBODAnammox - Anammox یا آناموکسCOD/N ratio - COD / N نسبتVSs - VSSDenaturing gradient gel electrophoresis - الکتروفورز ژل گرادیانAnaerobic ammonium oxidation - اکسیداسیون آمونیم بی هوازیdissolved oxygen - اکسیژن محلولanaerobic effluent - بی هوازی بی هوازیbiochemical oxygen demand - بیوشیمیایی نیاز به اکسیژنchemical oxygen demand - تقاضای اکسیژن شیمیاییNitrogen removal - حذف نیتروژنUpflow anaerobic sludge blanket reactor - رآکتور پتو بی هوازی بی هوازیSequencing batch reactor - راکتور بسته توالیvolatile suspended solid - فرآوری جامد معلقfluorescent in situ hybridization - فلورسنت در محل hybridizationFish - ماهیtotal suspended solids - مجموع مواد جامد معلقCod - کادو
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
Long-term effects of COD/N ratios on the nitrogen removal performance and bacterial community of an anammox reactor were evaluated by adding a synthetic medium (with glucose) and real anaerobic effluent to a SBR. At a COD/N ratio of 2.8 (COD, 390 mg·Lâ1) ammonium removal efficiency was 66%, while nitrite removal remained high (99%). However, at a COD/N ratio of 5.0 (COD, 300 mg·Lâ1), ammonium and nitrite removal efficiencies were high (84% and 99%, respectively). High COD, nitrite, and ammonium removal efficiencies (80%, 90% and 95%, respectively) were obtained on adding anaerobically pre-treated municipal wastewater (with nitrite) to the reactor. DGGE revealed that the addition of anaerobic effluent changed the bacterial community structure and selected for DNA sequences related to Brocadia sinica and Chloroflexi. Adding glucose and anaerobic effluent increased denitrifiers concentration threefold. Thus, the possibility of using the anammox process to remove nitrogen from anaerobically pre-treated municipal wastewater was demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 211, July 2016, Pages 257-266
Journal: Bioresource Technology - Volume 211, July 2016, Pages 257-266
نویسندگان
CÃntia Dutra Leal, Alyne Duarte Pereira, Fernando Terra Nunes, LuÃsa Ornelas Ferreira, Aline Carolina Cirilo Coelho, Sarah Kinaip Bicalho, Erika F. Abreu Mac Conell, Thiago Bressani Ribeiro, Carlos Augusto de Lemos Chernicharo,