CAJ | 학술논문

在确定二价铁离子为A.f生长过程中惟一限制性底物条件下,通过考察初始亚铁离子浓度、初始pH值两种影响亚铁离子氧化代谢的主要因素来研究细菌的生长特性,得到以限制性底物亚铁离子浓度为表征的细菌生长曲线.利用基于Monod方程建立的细菌生长动力学方程模型,采用Matlab软件中的Gauiss-Newton算法确定了在不同条件下细菌生长动力学参数,包括最大比生长速率μm、Monod常数K及Ro,推导出了不同条件下A.f对数期以底物Fe(Ⅱ)浓度为表征的生长动力学方程.
재학정이개철리자위A.f생장과정중유일한제성저물조건하,통과고찰초시아철리자농도、초시pH치량충영향아철리자양화대사적주요인소래연구세균적생장특성,득도이한제성저물아철리자농도위표정적세균생장곡선.이용기우Monod방정건립적세균생장동역학방정모형,채용Matlab연건중적Gauiss-Newton산법학정료재불동조건하세균생장동역학삼수,포괄최대비생장속솔μm、Monod상수K급Ro,추도출료불동조건하A.f대수기이저물Fe(Ⅱ)농도위표정적생장동역학방정.
In order to explain kinetic behaviors of microorganisms in varied experiment conditions, growth kinetic model of Acidithiobacillus ferrooxidans (A. f) was deduced based on Monod model. The kinetic parameters (Monod constant K, max specific growth rate μm, and Ro) of this model in different initial experiment condition were obtained by Gauss-Newton algorithm. The growth law in specific initial experiment condition and variable kinetic parameters were found. According to the growth behavior law studied under different initial experiment condition, the curves describing substrates (ferrous ion concentration) law and the growth velocity equations corresponding to the different initial experiment condition were obtained.