Thermokinetic investigation of effect of temperature on optimum NaCl concentration for petroleum bacterial growth

	Thermokinetic investigation of effect of temperature on optimum NaCl concentration for petroleum bacterial growth
	Nan, ZD ; Tan, ZC
刊名	thermochimica acta
	2002-04-08
卷号	386 期号:1 页码:17-22
关键词	thermokinetics petroleum bacteria microbial enhanced oil recovery temperature NaCl concentration
英文摘要	the power-time curves of growth of three strains of petroleum bacteria at different nacl concentrations at 40.0 and 50.0 degreesc have been determined by using a 2277 thermometric thermal activity analyser. an equation of a power-time curve, ln[alphap(k)/p(t) - 1] = ln[(alphak - n-0)/n-0] - alphakt, was established based on the generalized logistic equation, where p(t) is the thermal power at time t, k the carrying capacity, p-k = p0k, p-0 the thermal power of one cell, n-0 the bacterial population at time zero, alpha = (k - d)/k. the method of four observed points with the same time interval was used to calculate the value of p-k. the growth rate constant k and the death rate constant d were calculated. the nacl concentration of optimum growth rate of petroleum bacteria at 40.0 and 50.0 degreesc, respectively, have been obtained according to the curves k - d versus nacl concentration, which are 0.26, 0.54 and 0.57 mol l(-1) for b-1, b-2 and b-3, respectively, at 50.0 degreesc, 0.26, 0.55 and 0.56 mol l(-1) for b-1, b-2 and b-3, respectively, at 40.0 degreesc. the results indicated that the effect of temperature on nacl concentration of optimum growth rate was small. (c) 2002 elsevier science b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical ; chemistry, physical
研究领域[WOS]	chemistry
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000174685800002
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/83167]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Acad Sinica, Dalian Inst Chem Phys, Thermochem Lab, Dalian 110623, Peoples R China 2.Qufu Normal Univ, Dept Chem, Qufu 273165, Peoples R China
推荐引用方式 GB/T 7714	Nan, ZD,Tan, ZC. Thermokinetic investigation of effect of temperature on optimum NaCl concentration for petroleum bacterial growth[J]. thermochimica acta,2002,386(1):17-22.
APA	Nan, ZD,&Tan, ZC.(2002).Thermokinetic investigation of effect of temperature on optimum NaCl concentration for petroleum bacterial growth.thermochimica acta,386(1),17-22.
MLA	Nan, ZD,et al."Thermokinetic investigation of effect of temperature on optimum NaCl concentration for petroleum bacterial growth".thermochimica acta 386.1(2002):17-22.