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A platform for research: civil engineering, architecture and urbanism
The Influence of Oxygen Regime on Aerotank-Displacer with Fixed Biocenosis Operation
https://orcid.org/http://orcid.org/0000-0002-8868-3189
https://orcid.org/http://orcid.org/0000-0002-8834-5622
https://orcid.org/http://orcid.org/0000-0001-8107-7912
https://orcid.org/http://orcid.org/0000-0002-9817-8282
The influence of oxygen regime on aerotank-displacer with fixed biocenosis operation using mathematical modeling is given. Methods. The mathematical model has been developed. It includes equations: for transfer concentrations of organic pollutants, oxygen, and activated sludge along the length of the aeration tank; for transfer concentrations of organic pollutants and oxygen over the biofilm’s thickness; and kinetic equations (dependencies for determining substrate utilization rate by suspended and fixed biocenosis and the oxygen consumption rate in aeration tank and in biofilm). This model is implemented numerically. Results. Using the mathematical model, the influence of oxygen regime on the oxidation of substrate in free volume of aeration tank and in the biofilm was studied. The effect of aeration intensity, as well as the location and distribution density of elements with fixed biocenosis on the efficiency of aeration tank was also researched. Scientific novelty. A two-level mathematical model has been developed that takes into account simultaneous purification by activated sludge and biofilm, as well as the effect of oxygen content on the process. Practical significance. The research results allow us to calculate the rational parameters of the aerotank-displacer with fixed biocenosis.
The Influence of Oxygen Regime on Aerotank-Displacer with Fixed Biocenosis Operation
https://orcid.org/http://orcid.org/0000-0002-8868-3189
https://orcid.org/http://orcid.org/0000-0002-8834-5622
https://orcid.org/http://orcid.org/0000-0001-8107-7912
https://orcid.org/http://orcid.org/0000-0002-9817-8282
The influence of oxygen regime on aerotank-displacer with fixed biocenosis operation using mathematical modeling is given. Methods. The mathematical model has been developed. It includes equations: for transfer concentrations of organic pollutants, oxygen, and activated sludge along the length of the aeration tank; for transfer concentrations of organic pollutants and oxygen over the biofilm’s thickness; and kinetic equations (dependencies for determining substrate utilization rate by suspended and fixed biocenosis and the oxygen consumption rate in aeration tank and in biofilm). This model is implemented numerically. Results. Using the mathematical model, the influence of oxygen regime on the oxidation of substrate in free volume of aeration tank and in the biofilm was studied. The effect of aeration intensity, as well as the location and distribution density of elements with fixed biocenosis on the efficiency of aeration tank was also researched. Scientific novelty. A two-level mathematical model has been developed that takes into account simultaneous purification by activated sludge and biofilm, as well as the effect of oxygen content on the process. Practical significance. The research results allow us to calculate the rational parameters of the aerotank-displacer with fixed biocenosis.
The Influence of Oxygen Regime on Aerotank-Displacer with Fixed Biocenosis Operation
https://orcid.org/http://orcid.org/0000-0002-8868-3189
https://orcid.org/http://orcid.org/0000-0002-8834-5622
https://orcid.org/http://orcid.org/0000-0001-8107-7912
https://orcid.org/http://orcid.org/0000-0002-9817-8282
The influence of oxygen regime on aerotank-displacer with fixed biocenosis operation using mathematical modeling is given. Methods. The mathematical model has been developed. It includes equations: for transfer concentrations of organic pollutants, oxygen, and activated sludge along the length of the aeration tank; for transfer concentrations of organic pollutants and oxygen over the biofilm’s thickness; and kinetic equations (dependencies for determining substrate utilization rate by suspended and fixed biocenosis and the oxygen consumption rate in aeration tank and in biofilm). This model is implemented numerically. Results. Using the mathematical model, the influence of oxygen regime on the oxidation of substrate in free volume of aeration tank and in the biofilm was studied. The effect of aeration intensity, as well as the location and distribution density of elements with fixed biocenosis on the efficiency of aeration tank was also researched. Scientific novelty. A two-level mathematical model has been developed that takes into account simultaneous purification by activated sludge and biofilm, as well as the effect of oxygen content on the process. Practical significance. The research results allow us to calculate the rational parameters of the aerotank-displacer with fixed biocenosis.
The Influence of Oxygen Regime on Aerotank-Displacer with Fixed Biocenosis Operation
Lecture Notes in Civil Engineering
Onyshchenko, Volodymyr (editor) / Mammadova, Gulchohra (editor) / Sivitska, Svitlana (editor) / Gasimov, Akif (editor) / Karahiaur, Andriy (author) / Airapetian, Tamara (author) / Novokhatniy, Valeriy (author) / Matyash, Oleksandr (author)
International Conference BUILDING INNOVATIONS ; 2019 ; Baku, Azerbaijan
Proceedings of the 2nd International Conference on Building Innovations ; Chapter: 58 ; 591-599
2020-06-14
9 pages
Article/Chapter (Book)
Electronic Resource
English
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