Financial comparison of the alternative water supply systems in water scarce countries under the highlight of millennium development goals of united nations – a case study on Avşa Island

Bilgin, İlker
Water is indispensable for life. Although it is abundant on earth, only 3% of it is freshwater and it is not distributed evenly over the world. Distribution of fresh water is unfortunately not linked to the distribution of population. This means natural water resources are not available in every human settlement. Furthermore, some of existing natural water resources are managed inappropriately, for instance in poorer underdeveloped or developing nations water resources might get polluted due to lack of sanitation systems, whereas in developed countries same is true if there is a lack of enforcement of environmental policies. Thus, firstly existing water resources need to be saved with basic investments to achieve Millennium Development Goals (MDGs), some of which are directly related to the solution of water scarcity problem. Then, for the rest of water scarce countries, evaluation of alternative methods to supply water demand, which are called alternative water supply systems, is compulsory. However, these systems are expensive compared to regular water supply systems. Thus, for a water poor country, financial comparison of alternative water supply systems has great significance. This study aims to compare those alternative water supply systems financially over a case study on Avşa Island, Turkey. For the island, three alternative water supply systems are considered. Two of these require purchasing water from a nearby municipality on the mainland and the third option investigates the possibility of a reverse osmosis plant to convert Marmara Sea water to potable water. Financial comparison of these alternatives reveals that the most viable option for Avşa Island is to build a reverse osmosis plant. 


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Citation Formats
İ. Bilgin, “Financial comparison of the alternative water supply systems in water scarce countries under the highlight of millennium development goals of united nations – a case study on Avşa Island,” M.S. - Master of Science, Middle East Technical University, 2017.