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In the process of design and operation of sewerage system are used empirical formulas, which are in many cases, become obsolete and unusable when somebody can use nowadays modern technologies and materials. Therefore there is the possibility of using the mathematical models enormous importance for the enhanced environmental protection with the lowest operating and investment costs. In this modern method of analyzing of sewers has been designated as the first object, the object sedimentation tank. The purpose of the primary and secondary settling tank is to ensure the reduction of concentration the floating solids.

For the solution of research work has been chosen, after consultations with representatives of the Western Slovakia Water Company as interesting object of sedimentation tank located on the waste water treatment plant Nitra - Dolné Krškany.

Measurements on the object settlement tank situated at waste water treatment plant Nitra confirmed the expected speed parameters of the sewage in the tank. The velocity of wastewater is in the most cases very low, and even insignificant. However, finding that the sludge cloud has a non-standard form of a double wave gives the opportunity to optimize the operation of facilities sedimentation tank. The measured parameters are used as calibration parameters to input to the mathematical simulations, which are created by software ANSYS fluent.

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Pollack Periodica
Authors: Daniel Buček, Martin Orfánus, Peter Dušička, and Peter Šulek

Information Services [ 20 ]. Map of hydraulic roughness is the result of the calibration process ( Fig. 1 ). Sediment transport models can be sensitive to hydraulic roughness, yet bed roughness does not make a good calibration parameter. Therefore, it was

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. Calibration of Hourly energy simulation using Hourly monitored data and monthly utility records for two case study buildings, Department of Architecture Texas A&M University , Journal Proceedings of Building Simulation , Vol. 9 , 1997 , pp. 411 – 419

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aquifer parameters and hydrologic stresses was performed (model design). During the calibration stage, a set of values for aquifer parameters and stresses, that approximates field-measured heads and flows, was found. A sensitivity analysis, as a part of

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. [20] Ani E. C. , Wallis S. , Kraslawski A. , Agachi P. S. Development, calibration and evaluation of two mathematical models for pollutant transport in a

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of the issue in automatic model calibration , Journal of Hydrology , Vol. 534 , 2016 , pp. 3 – 177 . [7] Guse B. , Pfannerstill M

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characteristics, dissolved oxygen concentration, biomass amount). It has a long tradition to use Activated Sludge Models (ASM) model family [ 10 ], therefore a lot of experience is gained in model calibration and validation procedure. These models focus on

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Pollack Periodica
Authors: Andrej Šoltész, Dana Baroková, Zinaw Dingetu Shenga, and Michaela Červeňanská

accuracy of groundwater simulation depends on the quality and quantity of input data [ 5 ], it was necessary to obtain different input data to develop the conceptual model. Analysis of the current situation, calibration of the model and prediction of the

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] Józsa J. , Sarkkula J. , Tamsalu R. Calibration of modeled shallow lake flow using wind field modification , Proc VIII Int Conf on Comput Methods in Water Res , Venice, Italy, Computation Mechanics

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-Tóth A. , Kovács B. Calibration process for groundwater flow model of a river influenced shallow aquifer , Central European Geology , Vol. 58 , No. 1-2 , 2015 , pp. 186 – 198 .

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