It's never wrong to want proof, but read the article first: This month the team will begin building a pilot plant to demonstrate the technology at the Dokhaven

It's never wrong to want proof, but read the article first: This month the team will begin building a pilot plant to demonstrate the technology at the Dokhaven waste water treatment plant in Rotterdam, the Netherlands, working with from Radboud University Nijmegen and water purification firm Paques, based in the Dutch town of Balk.