The Feasibility Study to Improve the Efficiency of Municipal Water Supply

Year 2021, Volume: 5 Issue: 1, 2 - 39, 20.01.2021

Mehmet Can Güçlü , Burak Ekinci Aslıhan Korkmaz Yusuf Başaran Yakup Karaaslan Serdar Aldemir Ayhan Türkoğlu Ali Serindağ Jose Alberto Colıno Kerem Ar Baki Ülgen Bilal Dikmen Bekir Pakdemirli

https://doi.org/10.31807/tjwsm.746985

Abstract

The feasibility study was designed to assess water efficiency in municipal water supply systems. The total amount of produced and distributed water was 14,184,650 m3 in 2018 for 79,296 people in Marmaris. Nonetheless, the volume of billed water was only 8,131,491 m3; therefore, the non-revenue water percent was 42.7% involving unbilled authorized consumption (5.1%), physical losses (28.9%), and administrative losses (8.7%). According to projections, water demand including the losses was 14,184,650 m3 in 2018, and is expected to increase to 22,204,429 m3 in the without-project scenario whereas it would reach 19,852,469 m3 in the with-project scenario by the year 2038. Consequently, five measures were proposed; establishing district metered areas and pressure management areas, infrastructure development, updating and extending Supervisory Control and Data Acquisition Systems, and other complementary measures to improve the efficiency of the water supply system. Applying the proposed actions would reduce the total water losses from 37.6% to 24.7% (19.9% physical, 4.8% administrative) in 2023, and the value would reach 20.3% (18% physical, 2.3% administrative) in 2038. This study presents that the proposed investment’s estimated total cost is € 2,956,739.26 and is foreseen to be implemented throughout 2021 and 2022. The Payback Period of the investment is 5.5 years (2027), and the Discounted Payback Period is 6.8 years (2028). The assessment shows that the unitary cost of water evolves from 1.31 €/m3 in the current situation to 1.00 -1.30 €/m3 in 2038, based on the scenario selection (with-/without- project scenario) and the investment distribution periods.

Keywords

Municipal water supply, water use efficiency, water losses management, hydraulic modeling

Supporting Institution

This project is co-financed by the European Union and the Republic of Turkey

Project Number

TR2013/0327.07.01-01/001

References

• Awe, O. M., Okolie, S. T. A., Fayomi, O. S. I. (2019). Review of Water Distribution Systems Modelling and Performance Analysis Softwares. Journal of Physics: Conference Series. 1378. doi:10.1088/1742-6596/1378/2/022067.
• Karadirek, I. E., Kara, S., Yilmaz, G., Muhammetoglu, A., Muhammetoglu, H. (2012). Implementation of Hydraulic Modelling for Water-Loss Reduction Through Pressure Management. Water Resour Manage. 26, 2555–2568.
• Khadam, M. A., Shammas, N. K., & Al-Feraiheedi, Y. (1991). Water Losses from Municipal Utilities and their impacts. Water International, 16(4), 254-261.
• Kummu, M., Guillaume, J. H., de Moel, H., Eisner, S., Flörke, M., Porkka, M., Siebert, S., Veldkamp, T.I.E. & Ward, P. J. (2016). The world’s road to water scarcity: shortage and stress in the 20th century and pathways towards sustainability. Scientific reports, 6, 38495.
• Liemberger. R. (2010). Recommendations for Initial Non-Revenue Water Assessment. IWA Water Loss 2010.
• Muhammetoglu, A., Muhammetoglu, H., Adiguzel, A., Iritas, Ö., & Karaaslan, Y. (2018). Management of water losses in water supply and distribution networks in Turkey. Turkish Journal of Water Science & Management, 2(1), 58-75.
• Puust, R., Kapelan, Z., Savic, D. A., & Koppel, T. (2010). A review of methods for leakage management in pipe networks. Urban Water Journal, 7(1), 25-45.
• Renzetti, S., & Dupont, D. P. (2013). Buried treasure: the economics of leak detection and water loss prevention in Ontario. Rep. No. ESRC-2013, 1.
• Terlumun, U. J., Robert, E. O. (2019). Evaluation of Municipal Water Distribution Network Using Watercard and Watergems. Kastamonu University Journal of Engineering and Sciences. 5(2):147-156.
• Turkish Republic Official Gazette. (2004). Water Pollution Control Regulations (WPCR). Official gazette dated 31/12/2004 and numbered 25687, Ankara.
• Turkish Repuclic Official Gazette. (2014). By-Law regarding the Control of Water Losses in Drinking Water Supply and Distribution Systems. Official gazette dated 08/05/2014 and numbered 28994, Ankara.
• Turkish Repuclic Official Gazette. (2019). Amending by-law on the by-law regarding control of water- losses in drinking water supply and distribution systems. Official gazette dated 31/08/2019 and numbered 30874, Ankara.