World's Largest Air Purifier Completes Successful Trial Run in Xi'an, China
A 100-meter-tall air purification tower in Xi?an, China ? believed to be the world?s largest air purifier ? has significantly improved city air quality, results from its preliminary run suggest.
The 100-meter-tall air purification tower in Xi?an, China ? believed to be the world?s largest air purifier. Image via South China Morning Post
A 100-meter-tall air purification tower in Xi?an, China ? believed to be the world?s largest air purifier ? has significantly improved city air quality, results from its preliminary run suggest.According to researchers from the Institute of Earth Environment at the Chinese Academy of Sciences, the tower has managed to produce more than 10 million cubic metres (353 million cubic feet) of clean air per day since it was launched a few months ago. In the 10-square-kilometer (3.86-square-mile) observed area of the city, smog ratings have been reduced to moderate levels even on severely polluted days, an improvement over the city?s previous hazardous conditions.To clean the air, polluted smog is drawn in through a series of greenhouses surrounding the base of the tower and heated by solar energy. This newly hot air then rises up the tower through multiple scrubbing filters before it is released back into the atmosphere. This method allows the air to be cleaned using relatively minimal electric power, which in China is provided mainly by coal-powered plants.
The full-sized tower would measure 500 meters (1,640 feet) tall ...
The 100-meter-tall air purification tower in Xi?an, China ? believed to be the world?s largest air purifier. Image via South China Morning Post
A 100-meter-tall air purification tower in Xi?an, China ? believed to be the world?s largest air purifier ? has significantly improved city air quality, results from its preliminary run suggest.According to researchers from the Institute of Earth Environment at the Chinese Academy of Sciences, the tower has managed to produce more than 10 million cubic metres (353 million cubic feet) of clean air per day since it was launched a few months ago. In the 10-square-kilometer (3.86-square-mile) observed area of the city, smog ratings have been reduced to moderate levels even on severely polluted days, an improvement over the city?s previous hazardous conditions.To clean the air, polluted smog is drawn in through a series of greenhouses surrounding the base of the tower and heated by solar energy. This newly hot air then rises up the tower through multiple scrubbing filters before it is released back into the atmosphere. This method allows the air to be cleaned using relatively minimal electric power, which in China is provided mainly by coal-powered plants.
The full-sized tower would measure 500 meters (1,640 feet) tall ...
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