Cost Estimation Models for Drinking Water Treatment Plants in Turkey

Date

2024-4

Author

Koç, Atakan Veli

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Drinking water treatment plants (DWTPs) are essential for ensuring healthy and safe water. Developing cost curves that considers design flow for both capital (CAPEX) and operation and maintenance (OPEX) costs of DWTPs can be a significant benefit for making informed decisions about pricing and resource allocation. The objective of the thesis is to develop cost curves for CAPEX and OPEX of DWTPs in Turkey. Within the scope of the study, cost data from 42 operational DWTPs in Turkey were considered, adjusting the data to reflect 2022 prices. To facilitate the analysis, the DWTPs were categorized into two groups based on their design flow: small plants (0-25 L/sec) and large plants (25-100 L/sec). Cost curves for CAPEX and OPEX that considers the impact of design flow were then developed using this data. The findings for both CAPEX and OPEX in small and large capacity DWTPs confirmed the economies of scale principle. For small capacity plants, the increase in OPEX and CAPEX followed a polynomial trend. Conversely, cost curves for large capacity plants fallow a linear trend, indicating a more proportional increase in costs with design flow.The average OPEX for the treatment of 1 m3 of water was found to be lower in large DWTPs, at 0.095 €. In small capacity plants, the unit OPEX was higher, at an average value of 0.176 €.

Subject Keywords

CAPEX, OPEX, Total Cost, Capacity, Drinking Water Treatment Plants

URI

https://hdl.handle.net/11511/109562

Collections

Graduate School of Natural and Applied Sciences, Thesis