Estimation of Autotrophic Maximum Specific Growth Rate Constant-Experience from the Long-Term Operation of a Laboratory-Scale Sequencing Batch Reactor System

2008 ◽  
Vol 80 (4) ◽  
pp. 355-366 ◽  
Author(s):  
Yu-Min Su ◽  
Jacek Makinia ◽  
Krishna R. Pagilla
Author(s):  
Azadeh KHOSHDEL ◽  
Behrooz MAHMOODZADEH VAZIRI

Bioremediation is defined as a process, which involves decomposition of organic pollutant compounds available in soil and water resources into safe and eco-friendly materials, like water and CO2, by the microorganisms. In the present article, mathematical modeling of the bioremediation process was conducted comprehensively, and new models proposed for the microbial growth kinetics and substrate consumption (contaminant degradation). Accordingly, six kinetic models were suggested for the biomass growth and six models for the substrate consumption. Moreover, two models were considered for specific growth rate constant of the microorganisms. Then, model predictions were compared to and validated by the available experimental data in the literature. According to the obtained results, the microbial growth kinetic model, entitled as “MVKH2”, the substrate (contaminant) consumption model, entitled as “MVKH2s”, and the Aiba specific growth rate constant model had the best performance and the least error value in predicting the bioremediation process. Results achieved from this study are a promising beginning for practical and experimental works.


2012 ◽  
Vol 48 (2) ◽  
pp. 382-386 ◽  
Author(s):  
Juan Aguirre ◽  
Mª Rosa Rodríguez ◽  
Rodrigo González ◽  
Gonzalo García de Fernando

2017 ◽  
Vol 116 ◽  
pp. 296-303 ◽  
Author(s):  
Lei Zhang ◽  
Yuko Narita ◽  
Lin Gao ◽  
Muhammad Ali ◽  
Mamoru Oshiki ◽  
...  

Genetics ◽  
1987 ◽  
Vol 116 (3) ◽  
pp. 349-358
Author(s):  
Robert B Helling ◽  
Christopher N Vargas ◽  
Julian Adams

ABSTRACT Populations of Escherichia coli, initiated with a single clone and maintained for long periods in glucose-limited continuous culture, developed extensive polymorphisms. In one population, examined after 765 generations, two majority and two minority types were identified. Stable mixed populations were reestablished from the isolated strains. Factors involved in the development of this polymorphism included differences in the maximum specific growth rate and in the transport of glucose, and excretion of metabolites by some clones which were utilized by minority clones.


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