Centralised versus decentralised treatment and disposal options for Küçükçekmece Basin of Istanbul City

• Published in: Water science and technology Vol. 46; no. 6-7; pp. 371 - 378
• Main Authors: EROGLU, V, SARIKAYA, H. Z, YÜKSEL, E, KOYUNCU, I
• Format: Conference Proceeding Journal Article
• Language: English
• Published: London IWA 01-01-2002; IWA Publishing
• Subjects: Canals; Cities; Costs and Cost Analysis; Drainage; Drainage area; Drainage basins; Drainage management; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environmental impact; Exact sciences and technology; Freshwater; Inhabitants; Lagoons; Lakes; Low cost; Pollution, environment geology; Risk Assessment; Sewer systems; Turkey; Waste Disposal, Fluid - economics; Waste Disposal, Fluid - methods; Wastewater; Wastewater collection; Wastewater treatment; Water Pollution - economics; Water Pollution - prevention & control; Water quality; Water treatment; Middle East; Turkey; Istanbul Turkey; MED, Turkey, Istanbul; risk assessment; drainage basins; lagoons; environment impact; water treatment; Asia; waste water; investment
• ISBN: 9781843394242; 1843394243
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2002.0702

Küçükçekmece Lake is a sea lagoon located on the European side of Istanbul city with a drainage area of 4 million inhabitants (year 2040). The original plan to treat all of the wastewater collected from the drainage basin in a single plant located at the Northern end of the lake is compared with the decentralised option involving 4 treatment plants. The initial investment cost of the decentralised option is estimated to be higher than the original plan by an amount of 43 million US $. However, the decentralised option has been chosen finally, considering the low cost and risk of wastewater collection, the possibility of the staging of the services, and the reduced environmental impacts.