Technical University of Lodz, Institute of Fermentation Technology and Microbiology, ul. Wolczanska 171/173, 90-924 Lodz, Poland.
Bioresour Technol. 2012 Apr;109:21-5. doi: 10.1016/j.biortech.2012.01.011. Epub 2012 Jan 13.
This work aims at establishing the methodology to determine kinetic parameters describing growth of autotrophs in the activated sludge systems. It is based upon the measurement of oxygen uptake rate (OUR) only. Two Monod kinetic parameters, namely maximum specific growth rate for autotrophic biomass (μ(max,A)) and half-saturation constant for ammonium ions (K(A)) were simply and rapidly determined within a single batch OUR test with the use of ammonified wastewater. The obtained mean values of the parameters are μ(max,A)=0.675 h(-1) and K(A)=0.912 mg NH(3)-Nl(-1) and they are close to the ones assumed in activated sludge models. It indicates that the methodology of the respiratory batch test elaborated in this study is reliable.
本工作旨在建立一种方法来确定描述活性污泥系统中自养生物生长的动力学参数。它仅基于耗氧速率(OUR)的测量。在使用氨化废水的单个批量 OUR 测试中,简单快速地确定了两个 Monod 动力学参数,即自养生物最大比生长速率(μ(max,A))和氨离子半饱和常数(K(A))。所得到的参数的平均值为μ(max,A)=0.675 h(-1)和 K(A)=0.912 mg NH(3)-Nl(-1),它们与活性污泥模型中假设的值接近。这表明,本研究中详细阐述的呼吸批量测试方法是可靠的。