Regional water company Águas do Algarve has already confirmed that it will increase the volume of treated wastewater meant to be reused to eight million cubic metres by the end of 2025.

“We visited a (desalination) plant in Alicante (Spain) where the brine is released hundreds of metres away from a protected marine area which is closely followed by the European community and by several environmental ONGs and things have gone well,” he said.

(Source)