The excrement is converted into a digital currency.
The toilet is the invention of Cho Jae-weon, an urban and environmental engineering professor at the Ulsan National Institute of Science and Technology , and it produces biogas and manure. It's called the BeeVi toilet, from the words bee and vision.
The toilet employs a vacuum pump to draw waste into an underground bioreactor, which features microorganisms that break down the waste to methane. This then becomes a source of energy for the building, powering a gas stove, hot-water boiler, and solid oxide fuel cell. Its special pump reduces water use.Cho has conceived a virtual currency called Ggool, which means honey in Korean.
All in all, it's a superior eco-friendly toilet that lets students at the university earn money from pooping in order to buy products at the university. Postgraduate student Heo Hui-jin purchasing items at the Ggool market told Reuters,"I had only ever thought that feces are dirty, but now it is a treasure of great value to me. I even talk about feces during mealtimes to think about buying any book I want.
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