Intake and Outfall Pipelines
WSP has a proven track record of intake and outfall projects spanning decades, across the full spectrum of projects from cooling water and desalination plants to industrial and domestic effluents. We also perform conceptualisation and design of intake structures and pipelines, including the prediction of effluent dilution, engineering surf zone crossings, and the specification of site-appropriate materials. Our expertise enables us to assess hydrodynamic and water quality around intakes and outfalls using oceanographic studies and modelling, assessing the impact on vulnerable habitats, and coastal zones, including beach water quality where applicable.
Water abstraction from, or discharge to, the marine environment remain important engineering requirements. Both are subject to strict environmental legislation to ensure the impact on oceans and inland water bodies are minimised. Traditionally, seawater abstraction has been primarily used as cooling water for power generation plants, especially in the nuclear sector, and the cooling of buildings in hot and dry climates has also gained popularity in recent years. In addition, the scarcity of drinking water in many arid regions has given rise to desalination and therefore a new use for abstracted seawater.
WSP was appointed for the design and construction monitoring of the Trekkopje Uranium Mine in Namibia. Water supply to the mine is provided by the largest desalination plant in Sub-Saharan Africa with an abstraction capacity of 3m 3 per second. We provided the required capacity through two intake pipelines that extend some 1.2km into the ocean.