净水技术2012，Vol.31Issue(4)：74-79,6.
曝气生物滤池中无机氮转化规律与降解数学模型
Transformation Regularity of Inorganic Nitrogen and Mathematical Model of Degradation in Biological Aerated Filter
夏绍凤1
作者信息
- 1. 合肥市市政设计院有限公司,安徽合肥230001
- 折叠
摘要
Abstract
Biological aerated filter (BAF) reactor in which the sewage and gas flow upward through the filtering media layer is one of the pushing reactors. In order to study its characteristics of inorganic nitrogen transformation along the reactor, the reactor was divided into four sampling sites and the different characteristics of inorganic nitrogen transformation caused by different organic loading and NH3-N loading as well as the biological quantity and activity of each section was researched. The result indicates when hydraulic loading rate is 1.13-2.38 m3/m2+h, ratio of air and water is 4-5:1, DO is 2.9-5.9 mg/L and NH3-N loading is 0.25-0.5 kgNH3-N/m3+d without any organic carbon, the major reaction is nitration in the reactor. More than 70 % NH3-N in the influent is nitrified when the relative height of the filter is less than 0.52. Total nitrogen (TN) basically maintains balanced, NO-3 -N increases, and there is few NOj -N in the reactor. According to Eckenfelder model, the kinetics equation of NH3-N transformation is Se = 50exp(-0.013 4D/L1.261 2).关键词
曝气生物滤池(BAF)/硝化滤池/氨氮/Eckenfelder模式Key words
biological aerated filter (BAF) filter of nitrification NH3-N Eckenfelder model分类
资源环境引用本文复制引用
夏绍凤..曝气生物滤池中无机氮转化规律与降解数学模型[J].净水技术,2012,31(4):74-79,6.
