In 2006, the Qatari Diar Real Estate Investment Company signed a contract with SUEZ, to design, build and operate for 10 years the wastewater reuse plant for the seaside, residential and commercial ... Reuse, Ultrafor, Ultrafiltration, Wastewater ... Reuse Ultrafor Ultrafiltration Wastewater ... In 2006, the Qatari Diar Real Estate Investment Company signed a contract with SUEZ, to design, build and operate for 10 years the wastewater reuse plant for the seaside, residential and commercial ... Lusail wastewater treatment plant (Qatar)...