> Prof. Lee Ju-hyuck's research team in joint research with Dr. Cho Han-cheol's team at the Korea Institute of Industrial Technology developed the world's first

> Prof. Lee Ju-hyuck's research team in joint research with Dr. Cho Han-cheol's team at the Korea Institute of Industrial Technology developed the world's first eco-friendly power generation device that removes fine particles in the water. If I read this text correctly it doesn't cost extra energy but filters as a byproduct of energy generation, and other wording implies it avoids issues of microclogging and requiring replacement (otherwise that wouldn't have been mentioned as a downside of filters). I suppose that does make it a lot eco-friendlier than alternatives. The part where it only removes 24% of all microparticles means it's not going to be a complete solution however. OTOH that's 24% fewer particles to clog up later filters