Located in the Al Rayyan region, west of Doha, the Al Karaana lagoon covers more than 4 sq.km and is raising serious environmental problems. Almost 60,000 cubic metres of untreated wastewater per day is discharged onto this site by tanker, most notably causing the contamination of the water table by infiltration, producing foul odours and creating safety risks connected with the transport of sewage.
The Public Works Authority of Qatar, Ashgal, has awarded Egis an engineering, procurement and construction management (EPCM) contract to rehabilitate this lagoon. Ashgal wishes for the eradication of the lagoon and the site’s comprehensive overhaul, in continuance of the measures taken to date to mitigate its environmental impact.
Egis teams are tasked with identifying and qualifying the lagoon’s waters and sludge in order to appreciate the contamination of the water table and evacuate this waste to the appropriate treatment processes.
They carry out the design of the wastewater treatment and the soil and water table decontamination, write the tender documentation, perform the design review of the plans and documents submitted by the selected contractor, and finally supervise the works
Egis mobilises all of its engineering capabilities for a period of 23 months to reduce to a minimum the environmental impact of this site, then redevelop it and convert it for new uses, in accordance with its sustainable development commitments.