کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
682216 888978 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of inorganic carbon limitation on anaerobic ammonium oxidation (anammox) activity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Effects of inorganic carbon limitation on anaerobic ammonium oxidation (anammox) activity
چکیده انگلیسی

Anammox bacteria are chemoautotrophic bacteria that oxidize ammonium with nitrite as the electron acceptor and with CO2 as the main carbon source. The effects of inorganic carbon (IC) limitation on anammox bacteria were investigated using continuous feeding tests. In this study, a gel carrier with entrapped anammox sludge was used. It was clearly shown that the anammox activity deteriorated with a decrease in the influent IC concentration. The relationship between the influent IC concentration and the anammox activity was analyzed using Michaelis–Menten kinetics, and the apparent Km was determined to be 1.2 mg-C/L. The activity could be recovered by adding IC to the influent. The consumption ratio of IC to ammonium was not constant and mainly depended on the influent ratio of the IC to ammonium concentrations (inf.IC/inf.NH4–N). The results indicated that an inf.IC/inf.NH4–N ratio of 0.2 in the anammox reactor was ideal for the anammox process using gel cubes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 6, March 2011, Pages 4390–4394
نویسندگان
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