During his presentation at 2nd Symposium on Marmara Sea organized by Marmara Union of Municipalities, ISKI General Director Dr. Dursun Atilla Altay mentioned the rate of wastewater treatment is 97%.
General Director of İSKİ, Dr. Dursun Atilla Altay participated at the 2nd Symposium on Marmara Sea organized by Marmara Union of Municipalities in Cibali Campus of Kadir Has University. He made a presentation titled “İSKİ Projections for Wastewater Management and Water Supply” under the theme of “Marmara Basin and Wastewater Management”.

Beginning the presentation with the conditions of the 80’s in Istanbul, Altay said “In those days there were only two wastewater treatment plants in Istanbul, one in Yenikapı and the other in Üsküdar, the former one not fully in operation as there were no tunnels or lines to transfer wastewater to the plant. We could say that time almost all wastewater in the largest city in Turkey just had to flow into the Marmara sea. The streams were almost like open sewerage, carrying wastewater into the sea and potable water resources.

Expressing that the administration worked hard to save the city, he mentioned “we provided wastewater services through tunnels we laid underground via huge TBM machines, from street to street, all over the city with investments of billions of liras.”
97 % of the Wastewater is Treated

Mentioning that currently there are 154 wastewater treatment facilities in Istanbul, the General Director stated “the rate of wastewater treatment here is 97 %. 72 % of this is through biological and advanced biological treatment. There are biological treatment plants in the furthest points and villages of the city so we can provide local environmental protection to the regions that do not connect to the wastewater network. We will increase this rate to 82 % six months later, in June 2016 with the upcoming treatment plants.”
Stressing the future planning of urban wastewater management, the General Director said about the future project plans “to increase capacity in Ataköy and Tuzla, and to conduct new projects in Gümüşdere and Şile, we’ll handle new treatment plants. We plan to convert plants in Baltalimanı, Kadıköy and Yenikapı plants into advanced biological wastewater treatment plants. We always state that Melen is the water insurance for Istanbul. Therefore it is significant to protect the Melen basin. We therefore handle wastewater projects for that region as well.”
Stating that they followed a certain plan to monitor water quality Works, Altay said “We monitor wastewater from its entry to the catchment basin to its discharge from the plant. We also measure the impact of the wastewater in the receiving environment”.
New Dams for Istanbul
In the last section of his presentation the General Director mentioned about potable water investments too, saying “We can foresee the future water need in Istanbul. We conduct potable water investments accordingly. We will respectively open new water resources on both sides of the city. Demirköy (Rezve), Karamandere, Hisarbeyli, Hamzalıdere, Pirinçci dams on the European side as well as İsaköy and Sungurlu dams on the Asian side are planned to be operated. Melen has great significance for the city. The construction of the reservoir there is in progress. First and second stages of it are completed; hopefully we will finish the third stage in 2018”.