Daily Current Affairs 2021 China builds the world's largest air purifier to combat pollution | Daily Current Affairs 2021

China builds the world’s largest air purifier to combat pollution

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Aiming to contain the rising air pollution, Chinese government has built the world’s largest air purifier.
According to researchers from the Institute of Earth Environment at the Chinese Academy of Sciences, the 100 meter tall tower built in Xian, a few days ago. The tower has managed to produce more than 10 million cubic metres (353 million cubic feet) of clean air per day. 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.
Elaborating the function of the tower, 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.

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