SUEZ and National Office of Sanitation of Tunisia (ONAS) sign Tunisian water industry's first public-private partnership
Against the backdrop of environmental challenges and southern Tunisia's economic and social development, SUEZ and its partners will provide wastewater services for approximately 960,000 residents in the Sfax, Gabès, Medenine and Tataouine governorates.
The contract encompasses the operation and maintenance of the infrastructure, which has a treatment capacity of 39 million m3/year thanks to 14 wastewater treatment plants, 106 pumping stations and 1900 km of pipelines.
It also provides for the renovation of existing wastewater treatment plants and additional work that will allow wastewater to be used for agriculture via tertiary water treatment processes such as ultraviolet light treatment and phosphorus removal.
The treatment of nitrogen and phosphorus contained in wastewater will prevent the build-up of algae and pollution in lakes, thus helping to better protect aquatic environments and reduce pressure on local biodiversity. Reusing wastewater and ensuring the water released into the natural environment is of a better quality are part of the sustainable development goals set by SUEZ in January earlier this year.
Finally, SUEZ and its partners will use an Environmental and Social Management System (ESMS) to assess how the contract complies with its social and environmental responsibilities. It will incorporate current Tunisian environmental standards, in line with the World Bank's own environmental principles.