Rain model — Boundary condition in sewer network appraisal

Rusnák, Dušan; Stanko, Štefan; Škultétyová, Ivona

doi:10.1556/606.2016.11.2.9

Cited by 7 publications

(9 citation statements)

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“…Individual elements of the developed decision support model must be compared in pairs with subsequent elements of the levels directly above them. Due to their varied nature, three different approaches may be used for evaluating individual elements, specifically: Life Cycle Cost (LCC) analysis [66] of the considered design variants, hydrodynamic modelling [67] and expert methods, primarily surveys [68]. Surveys are particularly useful in situations when it is necessary to compare elements that are difficult to quantify.…”

Section: Analytic Hierarchy Processmentioning

confidence: 99%

Decision Criteria for the Development of Stormwater Management Systems in Poland

Kordana

Słyś

2020

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Progressing urbanisation is one of the key causes of environmental degradation. This problem also applies to stormwater management. For this reason, drainage infrastructures should be designed in harmony with nature and the decision for selecting a specific stormwater management system solution must not be taken on an ad-hoc or single-perspective basis. The purpose of this paper is to identify the criteria for selecting the best solution for a problem involving the selection of a stormwater management system, and to present a method that will enable all relevant criteria to be taken into account in the decision-making process. The developed decision problem structure takes into account all criteria related to the construction and operation of stormwater infrastructure, and its individual elements were identified based on the analysis and synthesis of information regarding the principles of stormwater management in Poland. The presented approach will allow for the taking into account of all, often mutually exclusive, criteria determining the choice of the stormwater management system option. This, in turn, will make it possible to significantly simplify the decision-making process. The indicated criteria can form the basis for choosing the most favorable stormwater management system for both large urban catchments and individual facilities. Thanks to the considerable flexibility of the developed decision problem structure, its widespread application can contribute to improving the efficiency of stormwater management systems. An example of the developed model’s application in a decision-making process is presented, concerning the selection of a design variant of a single-family residential building’s stormwater management system in Poland. Four design variants were included in the analysis, and the Analytic Hierarchy Process was used as the tool to select the most favorable option. This study shows that nature-based solutions are the most beneficial decision stormwater management options.

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Section: Analytic Hierarchy Processmentioning

confidence: 99%

Decision Criteria for the Development of Stormwater Management Systems in Poland

Kordana

Słyś

2020

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“…Synthetic rain then represents artificially created hyetographs in order to achieve more accurate design solutions compared to block rainfall intensities with constant intensities. This is especially important when using more exact computational methods that describe in detail surface rain runoff and simulate non-stationary flow in the sewer network [6], [9]. There are few types of synthetic model rains e.g.…”

Section: Model Rainsmentioning

confidence: 99%

“…The intensity profile of rain episodes depends mainly on the rainfall type. They differ in the distribution of the rainfall uniformity in time and position of maximum rainfall [6], [9].…”

Section: Model Rainsmentioning

confidence: 99%

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Implementation of the percolation facilities for rainwater runoff reduction

et al. 2019

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The article is aimed at finding out the behavior of the combined sewer network in the event of the occurrence of extreme precipitation events, which are associated with changes in the rainfall -runoff process in the urbanized area. Given the current situation of increased surface runoff in the urbanized area, it is necessary to extend the use of objects to reduce rainfall to the sewerage network. Part of the case-study was the design of percolation facilities in town Vráble, which are among the most used and most effective reduction measures. After designing the infiltration equipment and reducing the amount of rainwater discharged into the single sewerage network, the assessment of the sewerage network is satisfactory throughout the whole territory.

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“…In terms of flow, more effective is radial settling tank. Settling velocity is also influenced by the weather changes [4], wet weather causes the increased hydraulic load to the WWTP and thus to the SST [5].…”

Section: Introductionmentioning

confidence: 99%

Measurement of flow velocity in different secondary settling tanks for analysis of the flow

2017

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Settling tanks are essential parts of wastewater treatment process and their correct design is therefore crucial for its operation. Modeling of flow in these tanks is difficult, therefore it is necessary to find right tool to perform as precise work as possible. In this article flow velocity measurement in two different secondary settling tanks in Slovakia is presented. Rectangular settling tank in Dolný Kubín and radial settling tank with horizontal flow in Nižná nad Oravou were chosen for this purpose. Data gained from these measurement events will be used for building a model and followed by simulation. Additional data from operation of wastewater treatment plants are also used during the work.

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Rain model — Boundary condition in sewer network appraisal

Cited by 7 publications

References 0 publications

Decision Criteria for the Development of Stormwater Management Systems in Poland

Decision Criteria for the Development of Stormwater Management Systems in Poland

Implementation of the percolation facilities for rainwater runoff reduction

Measurement of flow velocity in different secondary settling tanks for analysis of the flow

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