【摘要】 描述微生物降解有机底物和微生物生长速率的动力学模型主要有Monod模型和Heukelekian模型,对模型中参数的求解大多是采用线性回归的方法,但是这种方法往往由于在变量的转换和试验过程中产生的误差,使得到的参数结果不准确.通过将有机物的挥发作用耦合在模型中,并对方程推导求解动力学方程的参数值,可以减少参数求解和试验过程中产生的误差.用松花江水中的微生物降解氯苯的动力学试验数据对该方法进行了验证表明;通过推导耦合后的模型求解的参数值能准确地反映试验松花江水中微生物对氯苯的降解和降解过程中微生物生长的动力学情况.更多还原

【Abstract】 Monod and Heukelekian models are kinetic models often used to describe microbial degradation of organic substrates and microorganism growth rates.The parameters of these models are mostly solved by linear regression.Due to variable transformations and experimental errors,however,the parameters’results are often not accurate by this method.By coupling the models with organic volatilization,the parameter values of the kinetic equations can be deduced,reducing the errors of the parameter solution and experimental process.This method was employed and checked against kinetic coefficients data based on experimental results from microbial degradation of monochlorobenzene in the Songhua River.The experimental results showed that the parameter values deduced by the coupled models could accurately reflect the kinetics of microbial degradation of monochlorobenzene and microorganism growth during the degradation process in the Songhua River.更多还原