The Saudi Water Partnership Company (SWPC) has selected the consortium formed by Acciona, Tawzea and Tamasuk as a winner for the development of three independent sewage treatment plants (ISTPs) in Saudi Arabia.

The consortium will finance, build and operate for a period of 25 years the following projects: the Madinah-3, Buraydah-2 and Tabuk-2 sewage treatment plants. Together, these contracts are worth EUR855 million (USD1 billion) and represent the first contract for Acciona in the area of wastewater treatment in the Middle East. 

Located in Medina, the Madinah-3 ISTP will have a capacity of 200,000 m³/day (expandable to 375,000 m³/day) to treat urban wastewater. The sewage treatment plants, Buraydah-2 with a capacity of 150,000 m³/day and Tabuk-2 with a capacity of 90,000 m³/day, are located in rural areas in the central and northern regions of the country. The consortium will develop, design, finance, construct and operate these two facilities for a period of 25 years and will build 34 kilometers of recycled water collectors for Buraydah-2 as well as 28 kilometers of collectors for Tabuk-2.

The three plants will each have a collection well and pumping station, pretreatment installation, biological reactor, sludge line, and recycled water pumping station.