Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10395161 | Bioresource Technology | 2011 | 5 Pages |
Abstract
As one of the plug-flow reactors, biological aerated filter (BAF) reactor was divided into four sampling sectors to understand the characteristics of elemental nitrogen transformation during the reaction process, and then the different characteristics of elemental nitrogen transformation caused by different NH3-N loadings, biological quantities and activities in each section were obtained. The results showed that the total transformation ratio in the nitrifying reactor was more than 90% in the absence of any organic carbon resource, at the same time, more than 65% NH3-N in the influent were nitrified at the filter height of 70 cm below under the conditions of the influent runoff 9-19 L/h, the gas-water ratio 4-5:1, the dissolved oxygen 3.0-5.8 mg/L and the NH3-N load 0.28-0.48 kg NH3-N/m3 d. On the base of the Eckenfelder mode, the kinetics equation of the NH3-N transformation along the reactor was Se = S0 exp(â0.0134D/L1.2612).
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Gang Yan, Xia Xu, Lirong Yao, Liqiao Lu, Tingting Zhao, Wenyi Zhang,