Temat: biofilm - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Towards a Numerical Model of Bacterial Filtration in Fibrous Filters
Autorzy:: Gac, J.M.
Gradoń, L.
Powiązania:: https://bibliotekanauki.pl/articles/185846.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bacterial filtration
filtration efficiency
nonstationary filtration
biofilm formation
filtracja bakteryjna
skuteczność filtracji
biofilm
Opis:: A model of bacterial filtration on fibrous filter media is developed. The single fibre efficiency as well as the efficiency of the whole filter – at the onset of the process and the evolution of those quantities - are analysed. The differences between the numerical modelling of colloidal particles and bacteria are stressed in detail. The main differences are the active motion ability of bacteria and biofilm formation. The parameters of the model were identified based on the literature data.
Źródło:: Chemical and Process Engineering; 2015, 36, 1; 89-99
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of substrate loading and detachment conditions on a plane biofilm behaviour
Autorzy:: Blatkiewicz, M.
Tabiś, B.
Ledakowicz, S.
Powiązania:: https://bibliotekanauki.pl/articles/185693.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biofilm
modeling
growth kinetics
modelowanie
kinetyka wzrostu
Opis:: A mathematical model of a plane, steady state biofilm, with the use of a single substrate kinetics, was proposed. A set of differential equations was solved. In order to analyse the biofilm’s behaviour, a number of simulations were performed. The simulations included varying process parameters such as detachment coefficient and substrate loading. Two detachment models were taken into consideration: one describing the detachment ratio as proportional to the thickness of the biofilm, and the other one proportional to the thickness of the biofilm squared. The results provided information about substrate and live cell distribution in biofilm and the influence of certain parameters on biofilm behaviour.
Źródło:: Chemical and Process Engineering; 2013, 34, 4; 463-477
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Cellular-automata based modeling of heterogeneous biofilm growth for microbiological processes with various kinetic models
Autorzy:: Skoneczny, Szymon
Powiązania:: https://bibliotekanauki.pl/articles/185334.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biofilm structure
cellular automata
mathematical modeling
struktura biofilmu
automaty komórkowe
modelowanie matematyczne
Opis:: The study concerns modeling and simulation of the growth of biofilms with heterogeneous structureswith a discrete mathematical model based on theory of cellular automata. The article presents two-dimensional density distributions of biofilms for microbial processes: oxidation of ammonium byNitrosomonas europaeabacteria and glucose utilization byPseudomonas aeruginosabacteria. Theinfluence of limiting substrate concentration in the liquid phase on biofilm structure was determined.It has been shown that the value of death rate coefficient of microorganisms has the qualitative andquantitative influence on the density and porosity of the biofilm.
Źródło:: Chemical and Process Engineering; 2019, 40, 2; 145--155
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Carbonaceous materials in petrochemical wastewater before and after treatment in an aerated submerged fixed-bed biofilm reactor
Autorzy:: Trojanowicz, K.
Wojcik, W.
Powiązania:: https://bibliotekanauki.pl/articles/185052.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Chemical Oxygen Demand fractions
petrochemical wastewater
biofilm reactor
zapotrzebowanie tlenu
petrochemiczne ścieki
reaktor
Opis:: Results of the studies for determining fractions of organic contaminants in a pretreated petrochemical wastewater flowing into a pilot Aerated Submerged Fixed-Bed Biofilm Reactor (ASFBBR) are presented and discussed. The method of chemical oxygen demand (COD) fractionation consisted of physical tests and biological assays. It was found that the main part of the total COD in the petrochemical, pretreated wastewater was soluble organic substance with average value of 57.6%. The fractions of particulate and colloidal organic matter were found to be 31.8% and 10.6%, respectively. About 40% of COD in the influent was determined as readily biodegradable COD. The inert fraction of the soluble organic matter in the petrochemical wastewater constituted about 60% of the influent colloidal and soluble COD. Determination of degree of hydrolysis (DH) of the colloidal fraction of COD was also included in the paper. The estimated value of DH was about 62%. Values of the assayed COD fractions were compared with the same parameters obtained for municipal wastewater by other authors.
Źródło:: Chemical and Process Engineering; 2016, 37, 3; 373-382
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Mathematical modelling and stationary characteristics of a two - phase fluidised - bed bioreactor with external aeration
Autorzy:: Tabiś, B.
Stryjewski, W.
Powiązania:: https://bibliotekanauki.pl/articles/185426.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bioreactor
fluidized-bed
extern
al aerator
biofilm
steady states
bioreaktor
złoże fluidalne
stan stały
Opis:: A mathematical model for a two-phase fluidised bed bioreactor with liquid d recirculation and an external aerator was proposed. A stationary nonlin ear analysis of such a bioreactor for an aerobic process with double-substrate kinetics was carried out. The influences of a volumetric fraction of solid carriers in the liquid phase, the rate of active e biomass transfer from the biofilm to the liquid, the concentration of carbonaceous substrate, the mean residence time of the liquid and the efficiency of the external aerator on the steady state characteristics of the bioreactor were described. A method for determination of the minimal recirculation ratio related to oxygen demand and fluidised bed conditions was presented. On the basis of the obtained results, it is possible to choose reasonable operating conditions of such plants and to determine constraints, while considering acceptable concentrations of a toxic substrate being degraded.
Źródło:: Chemical and Process Engineering; 2013, 34, 4; 435-448
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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