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Gewählte Master / Diploma Thesis:

Fiona Vohryzka (2018): Verursachergerechte Betriebskostenaufteilung für eine kommunale Kläranlage mit maßgeblichem Indirekteinleitereinfluss.
Master / Diploma Thesis - Institut für Siedlungswasserbau, Industriewasserwirtschaft und Gewässerschutz (SIG), BOKU-Universität für Bodenkultur, pp 138. UB BOKU obvsg

Data Source: ZID Abstracts
Wastewater taxes are taking on increasing importance in the financing of municipal wastewater treatment facilities. The basic principles regarding the pricing of water services in the Austrian waste water management are defined by the EU Water Framework Directive. One of the main principles in this regard is the polluter pays principle according to which the costs generated by the usage of water services shall be borne by the polluter. This master thesis therefore deals with the development of an allocation method for the operating costs of waste water treatment plants (WWTPs) that complies with the polluter pays principle through cost allocation according to the degree of pollution. Based on the process-oriented cost structure of the ÖWAV-Benchmarking for WWTPs, allocation keys are developed that are used to distribute the operating costs to the cost drivers using the cost-relevant wastewater parameters. The allocation keys are established, differentiating between fixed (unrelated to pollution) and variable (pollution-related) operating costs. Regarding the fixed operating costs, the design capacities (dimensioning) are in the centre of consideration. For the variable operating costs balancing considerations based on the types of costs are used to determine the allocation factors. Thereby, the necessity of the inclusion of additional cost influencing factors is analysed as well. The cost allocation method is developed for a specific model WWTP, with particular focus on the existing indirect dischargers. The allocation keys and the resulting cost allocations are calculated comprehensively for this model WWTP. The new cost allocation clearly displays the influent characteristics of the WWTP regarding the chosen parameters. The additional cost influencing factors have no significant effect on the operating costs. They could however be relevant for WWTPs with a higher proportion of variable operating costs.

Beurteilende(r): Ertl Thomas

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