Yenikapi Waste Water Treatment Plant

Waste Water Management Plants

Start of works


Progress status


Data updated to April 2021

Yenikapi, Istanbul, Turkey
SDG Obiettivi di sviluppo sostenibile
Clean water and sanitation Clean water and sanitation

Fisia Italimpianti, a unit of Webuild Group and a global leader in water treatment and desalination facilities, is carrying out, in joint-venture with Alkatas and Alke, a €57-million contract to build a waste water treatment plant in Yenikapi, a neighbourhood of Istanbul ( Turkey) for the municipal water utility ISKI (Istanbul Su ve Kanalizasyon Idaresi).

Once completed, the plant will treat 450,000 cubic metres of waste water per day, a volume equal to the sewage produced by two million residents.

Fisia Italimpianti, whose 90 years of experience has built desalination plants that serve a combined total of more than 20 million people worldwide. The first contract won in 2016 involves modernising and expanding a waste water treatment plant in the Atakoy neighbourhood of Istanbul, allowing Fisia Italimpianti to consolidate its role as developer of projects that assist in improving the environment.

The two plants – one in Atakoy and the other in Yenikapi – will be capable of meeting the needs to treat sewage water produced by 30% of the population of Istanbul.

Technical data

Catchment area


Preliminary treatment (m3/d)


Biological stage (m3/d)