Scientists say distillery wastewater could be used to produce green hydrogen

Heriot-Watt scientists claim that their new method could kill two birds with one stone by taking the estimated 1 billion litres a year of wastewater from distilleries globally to use to produce green hydrogen.

Scientists claim to have come up with a method of using billions of litres of wastewater from distilleries to produce so-called "green hydrogen" to produce clean energy.

Researchers at Heriot-Watt University in Edinburgh say their method of using wastewater from the likes of whiskey making could fundamentally transform green hydrogen, which is seen as having huge potential in theory as a renewable energy source but is still seen as way behind the likes of wind and solar in practical use.