College students developed the first "ship ballast water filtration system" in China

Recently, the first "ship ballast water filtration system" in China was successfully developed by students of Harbin Engineering University. At present, there are only 10 similar devices in the world. According to reports, the problem of carrying foreign species in ship's ballast water has become a worldwide problem. At least 7,000 species of the world are sailing to other places with the ballast water of the ship every day. The device can kill 90% of the microorganisms, and the treatment cost is only 0.037 yuan / ton.

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