Review: Deriving a Rate Equation for a Postulated Mechanism. Write rate equation for postulated mechanism. 2) For concentrations of reactive intermediates CI*. If batch system w/ pure culture of bacteria (Figure ); If batch system w/ mixed culture (Figure ); Monod () equation: K = constant; S = substrate conc. C. The Monod Equation. Originally, exponential growth of bacteria was consid- ered to be possible only when all nutrients, including the substrate, were present .

Author: Dakazahn Moshicage
Country: Cuba
Language: English (Spanish)
Genre: Automotive
Published (Last): 27 July 2017
Pages: 306
PDF File Size: 11.70 Mb
ePub File Size: 12.86 Mb
ISBN: 604-3-29916-718-4
Downloads: 90297
Price: Free* [*Free Regsitration Required]
Uploader: Moogubar

Views Read Edit View history. They will differ between species and based on the ambient environmental conditions.

Similarly, by combining equations 1 and 3 we can write an expression for substrate utilization rate. The container is well mixed and therefore equatin dissolved oxygen concentration O2 does not become a limiting factor for microbial growth.

Overview of some theoretical approaches for derivation of the Monod equation.

All articles with unsourced statements Articles with unsourced statements from January Growth and Kinetics” PDF. The most widely used expression for describing specific growth rate as a function of substrate concentration is attributed to Monod The Monod equation is: A conceptual plot of microbial cell concentration vs time for the batch system is called a growth curveas shown in Figure 2.


Louvain la Neuve, Belgium: By combining equations 2 and 3 we can write the following expression for time-rate-of-change of biomass:. By using this site, you agree to the Terms of Use and Privacy Policy. From Wikipedia, the free encyclopedia.

The Monod equation is a mathematical model for the growth of microorganisms. Equation 5 describes the Monod kinetic relationship for substrate utilization.

Specific growth rate plotted respect to initial substrate concentration in a batch system. Annual Review of Microbiology. On-line parameter estimation, adaptave state estimation and adaptave control of fermentation processes. This page was last edited on 8 Februaryat When the yield coefficient, being the ratio of mass of microorganisms to mass of substrate utilized, becomes very large this signifies that there is deficiency of substrate available for utilization.

Retrieved from ” https: This container initially contains a known growth substrate concentration S. Archived from the dquation PDF derivaiton December 29, As with the Michaelis—Menten equation graphical methods may be used to fit the coefficients equqtion the Monod equation: Lennox, and Rockford J. Microbial growth and substrate utilization in a well mixed batch container. For example, it is used in the activated sludge model for sewage treatment.


Microbial Growth

The rate of substrate utilization is related to the specific growth rate as follows: The Monod equation is commonly used in environmental engineering. It is named for Jacques Monod who proposed using an equation of this form to relate microbial growth rates in an aqueous environment to the concentration of a limiting nutrient.

Equation 6 describes the condition where substrate utilization derivarion proportional to substrate concentration i.

Initially a known concentration Euqation of viable microbial cells i. Environmental engineering Civil engineering Sewerage. Equation 7 describes the condition where substrate utilization rate is a constant i. The yield coefficient and the specific growth rate used to develop three types of microbial growth kinetic relationships; Monodfirst order ,and zero order kinetics.