Microcalorimetric investigation of effects of temperature on pH of petroleum bacterial optimum growth

被引：6

作者：

Nan, ZD

Zeng, XC ^{[1
]}

Zhang, HL

机构：

[1] Sichuan Univ, Dept Chem, Chengdu 610064, Peoples R China

[2] Qufu Teachers Univ, Dept Chem, Qufu 273165, Peoples R China

来源：

THERMOCHIMICA ACTA | 2000年 / 351卷 / 1-2期

关键词：

petroleum bacteria; microcalorimetry; microbial enhanced oil recovery; temperature; pH of optimum growth;

D O I：

10.1016/S0040-6031(00)00414-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The power-time curves for growth at different pH values of three strains of petroleum bacteria (B-1, B-2, B-3) at 40 and 50 degrees C have been determined by using a 2277 Thermal Activity Monitor, and on the basis of the generalized logistic equation, a power-time curve equation, In[alpha P-K/P(t)-1]=In[(alpha K--N-0)/N-o]-alpha kt, was proposed for calculating the growth and the death rate constants k, D, and nonlinear equations of k-pH, D-pH and (k-D)-pH were established for deciding the pH of optimum growth corresponding to the maximum values of k, (k-D) and the minimum value of D. The results indicated that the effect of temperature on pH of optimum growth was small. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：39 / 45

页数：7