Ashghal has awarded Keppel Seghers a QR3.6 billion ($989 million) design-build-operate contract for the largest greenfield wastewater treatment and water reuse facility in Qatar.

The facility, to be operational by 2010, will be set up in Doha North. Keppel Seghers, a member of the Singapore-based Keppel Corporation’s infrastructure division, will operate and maintain the facility for 10 years.
It will have a peak design capacity to treat wastewater of up to 439,000 cu m a day, more than triple the capacity of the next largest wastewater treatment plant in the country.   
The Doha North facility has been designed to serve a population of over 900,000. The treated water will be recycled for irrigation needs.
The sludge treatment plant in the Doha North facility will be the only such plant in Qatar. It will receive and treat sludge from wastewater treatment plants all over Qatar. The treated sludge can be used as an organic fertiliser or as a supplementary green source of energy.
Keppel said with its expertise in water and thermal recycling, it was able to offer a complete ecologically-friendly design for the Doha North facility.
“We applied in-house know-how and technology in water and thermal treatment processes, ranging from advanced biological water treatment processes to membrane filtration to produce high-quality water for reuse, and thermal drying processes to treat the wastewater sludge,” it said.
“The Doha North facility will have advanced odour control systems to minimise its impact on the surrounding communities.”
PUB, the national water agency of Singapore, a statutory board under the city state’s Ministry of the Environment and Water Resources, is Keppel’s strategic partner in the project. PUB has extensive expertise and over 40 years of experience in water resources management.