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Publikācija: Simulation of Bacterial Regrowth in Water Networks by Modelling of Pseudomonas Fluorescens Growth in a Lab Biofilm Reactor

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Nosaukums oriģinālvalodā Simulation of Bacterial Regrowth in Water Networks by Modelling of Pseudomonas Fluorescens Growth in a Lab Biofilm Reactor
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.1. Būvniecības un transporta inženierzinātnes
Autori Tālis Juhna
Kristīna Tihomirova
Andrejs Koliškins
Sergejs Nazarovs
Jānis Rubulis
Inna Lukjaņeca
Marius Vital
Frederik Hammes
Atslēgas vārdi Bacterial regrowth, Pseudomonas fluorescens, modeling, Propella
Anotācija Bacterial regrowth is causing drinking water deterioration in the distribution networks. The mathematical models could be used to select strategies for combating this problem. Here we present lab-scale experiments where the mathematical model by Zhang et al. (2004) was verified in strictly controlled conditions using Pseudomonas fluorescens. Experiments were performed in a batch and in a perfectly mixed biofilm reactor. The biomass in water and in biofilm was measured with total bacterial counts. Acetate was used as only organic substrate and it was measured as the biologically degradable organic carbon or assimilable organic carbon. The results showed that using maximum specific growth rate, yield, Monod half satura-tion coefficient from batch experiments in the model the biofilm growth was apparently similar however failed statistical Student t-test. In the model bacterial regrowth reached the plateau later than it was observed in experiments. Simulation by adjusting growth coefficients increased the fit however statistically significant similarity between model and experimental data were not reached.
Atsauce Juhna, T., Tihomirova, K., Koliškins, A., Nazarovs, S., Rubulis, J., Lukjaņeca, I., Vital, M., Hammes, F. Simulation of Bacterial Regrowth in Water Networks by Modelling of Pseudomonas Fluorescens Growth in a Lab Biofilm Reactor. No: Proceedings of the Combined International Conference of Computing and Control for the Water Industry (CCWI 2007) and Sustainable Urban Water Management (SUWM 2007), Lielbritānija, Leicester, 3.-5. septembris, 2007. Leicester: Taylor and Francis, 2007, 229.-236.lpp. ISBN 978-0-415-45415-5.
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ID 3246