What's more, they deployed it at a festival in Ghentm and successfully brewed beer from 1,000 litres of water taken from the urine of attendees.
In order to, literally, take the piss, the team employed a method called membrane distillation that heavily reduces the ammonia found in pee.
"Membrane distillation holds possible advantages over existing urine treatment technologies, specifically regarding ammonia recovery," explained Sebastiaan Derese and Arne Verliefde
"It was shown that up to 95% of all ammonia present in hydrolyzed urine could be recovered by increasing the urine pH to 10.5 or higher within a period of 2 hours, with a maximal separation factor of up to 16."
According to Engadget , the scientists want to create larger versions of these machines that can be installed in public places like airports.
They could also be used in the developing world to help provide clean drinking water.
Billionaire Bill Gates has also been involved in creating pure water from waste. He tried out a machine called the Omniprocessor.
It's currently being tested in Senegal, and is an enormous sewage processing machine that turns raw slurry into clean drinking water, electricity and ash.
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