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Current and Future Strategies for Water and Wastewater Management of Istanbul City

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Abstract

Istanbul has experienced rapid increases in population to more than 12 million people, which has created infrastructure problems of water supply and wastewater treatment and disposal. In this article, the achievements and approaches of the Istanbul Water and Sewerage Administration (ISKI) to solve the water shortage problem and to improve services are summarized. Istanbul had a very severe water shortage problem in 1994 because of ignorance of the implementation of the needed projects. After reviewing the reasons and causes of the problem, new priority criteria adopted after 1994 are given. Following the implementation of the projects determined according to the aforementioned criteria, water supplied has exceeded the water demand. The added capacity is equal to one to three times of the capacity built up to 1994 for water treatment, service reservoirs, pumping stations, transmission lines, and the water distribution network; water quality has been improved the meet local and international potable water standards. Unaccounted for water has been reduced from 60% to 27%. The percentage of treated wastewater has been increased from 10% to 90% in 8 years, resulting in drastic improvements and rehabilitation of the Golden Horn and coastal water quality. Through improved customer services, complaints were reduced from 33% in 1994 to 0.3%. Some of the main criteria and the approaches behind this success are summarized.

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Authors and Affiliations

  1. Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Maslak, Istanbul, Turkey

    Ebubekir Yuksel, Veysel Eroglu, Hasan Z. Sarikaya & Ismail Koyuncu

Authors
  1. Ebubekir Yuksel
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  2. Veysel Eroglu
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  3. Hasan Z. Sarikaya
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  4. Ismail Koyuncu
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Correspondence to Ebubekir Yuksel.

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Yuksel, E., Eroglu, V., Sarikaya, H. et al. Current and Future Strategies for Water and Wastewater Management of Istanbul City . Environmental Management 33, 186–195 (2004). https://doi.org/10.1007/s00267-003-2852-6

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  • DOI: https://doi.org/10.1007/s00267-003-2852-6

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