CAJ | 학술논문

用 Haldane 生长抑制动力学模型模拟了偏二甲肼（ UDMH）高效降解菌群（ FYD）的生长动力学过程，用 Andrews 非竞争性底物抑制动力学模型模拟了 UDMH 的降解动力学过程，拟合出动力学方程。通过拟合方程计算了比生长速率与比降解速率。结果表明，UDMH 初始浓度为43．6980 mg·L -1时，菌群有最大比生长速率，UDMH 初始浓度为50．2261 mg·L -1时，UDMH 有最大比降解速率，理论值接近于实验值的50 mg·L -1。菌群 FYD 降解 UDMH 的产率系数为0．229，反映了菌群 FYD 对 UDMH的耐受性和利用情况。比生长速率与比降解速率的线性关系表明，在菌群 FYD 降解 UDMH 过程中存在物料平衡，细胞生长随UDMH 浓度的变化存在合理性。
용 Haldane 생장억제동역학모형모의료편이갑정（ UDMH）고효강해균군（ FYD）적생장동역학과정，용 Andrews 비경쟁성저물억제동역학모형모의료 UDMH 적강해동역학과정，의합출동역학방정。통과의합방정계산료비생장속솔여비강해속솔。결과표명，UDMH 초시농도위43．6980 mg·L -1시，균군유최대비생장속솔，UDMH 초시농도위50．2261 mg·L -1시，UDMH 유최대비강해속솔，이론치접근우실험치적50 mg·L -1。균군 FYD 강해 UDMH 적산솔계수위0．229，반영료균군 FYD 대 UDMH적내수성화이용정황。비생장속솔여비강해속솔적선성관계표명，재균군 FYD 강해 UDMH 과정중존재물료평형，세포생장수UDMH 농도적변화존재합이성。
The growth kinetic process of efficient bacteria flora(FYD)for degrading unsymmetrical dimethyl hydrazine( UDMH) was simulated by Haldane kinetic model of growth inhibition. The degradation kinetic process of UDMH was simulated by Andrews noncompetitive kinetic model of substrate inhibition. The kinetic equations were fitted out,and the ratio growth rate and ratio degradation rate were calculated by the fitted equations. Results show that when the initial concentration of UDMH is 43. 6980 mg·L -1 ,the flora has maximum ratio growth rate. When the initial concentration of UDMH is 50. 2261 mg·L -1 ,the UDMH has maximum ratio degradation rate. The theoretical value is very close to the experimental one as UDMH concentration is 50 mg·L -1 . The yield coefficient that FYD degrades UDMH is 0. 229,which reflects the tolerance and utilization ability of FYD to UDMH. The linear relationship between the maximum ratio growth rate and the maximum ratio degradation rate shows a material balance exists in the process of degrading UDMH by flora FYD. The change in cell growth with UDMH concentration exists bacte-ria rationality.