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Gewählte Master / Diploma Thesis:

Master / Diploma Thesis - Institut für Siedlungswasserbau, Industriewasserwirtschaft und Gewässerschutz (SIG), BOKU-Universität für Bodenkultur, pp 149. UB BOKU obvsg FullText

Data Source: ZID Abstracts
This thesis deals with a sewer system of an urban subcatchment (75 ha) in Skopje, the capital of the Former Yugoslav Republic of Macedonia. A hydrodynamic model and a sewer database were to be created. The sewer system discharges waste water from the industrial premises of OHIS (Organic Chemical Industry Skopje) as well the nearby settlement of Pintija and is connected to the waste water treatment plant of OHIS. Following storm events the two systems are surcharged and flooding occurs regularly. With the help of hydraulic modelling of the system with SWMM 5 (Storm Water Management Model) of the U.S. EPA bottlenecks were to be found and with further scenarios a possible solution for the problem was to be created. A sensitivity analysis was made to determine the responsiveness of the model on different input parameters. Before starting to model, data and information about the system had to be collected and verified in fieldtrips during a two month research stay. Further, the surface runoff had to be clarified. Evidence gathered during fieldtrips showed, that the roof runoff either discharges directly onto streets, into gardens or is connected to the sanitary sewer of Pintija. Formally a separate system was designed for Pintija but only the sanitary sewer exists. The only storm sewer line is full of sediments and not in use. Due to a large number of faulty connections the sanitary sewer is supposed to work like a combined system but the dimensions are not laid out accordingly. Further the sanitary sewer of Pintija is connected with bypasses to the storm sewer of the separate system in OHIS. Consequently, the untreated wastewater of Pintija is discharged directly into the receiving water. With respect to sustainable and modern water protection this situation is not acceptable and possibilities for change are given in this thesis with the help of a hydrodynamic model.

Beurteilende(r): Ertl Thomas
1.Mitwirkender: Kretschmer Florian

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