China’s Biggest Air Purifier Proven Effective
By Faith Magbanua, January 20, 2018 04:01 AM
It is known that one of the biggest problems in China is air pollution. The problem up until now still remains unresolved in the city of Xian in northern China's Shaanxi province.
And in winter, the problem is exacerbated given that much of the city's heating depends on coal.
According to the researchers at the Institute of Earth Environment, the Chinese Academy of Sciences continue to test what they describe as the world's biggest air purifier.
The said invention has been built last year, standing 100 meters (328 feet) high, the experimental air purification tower is located in the northern Chinese city of Xian. It is designed to help contain smog levels in the area.
Anoth report from the local Xi'an Evening Post said that the tower was completed in May 2016 and had been undergoing tests to see if it could really improve air quality in the surrounding neighborhood.
Right now, research is under way "to find an effective, low cost method to artificially remove pollutants from the atmosphere" with the help of the Xian tower, according to the South China Morning Post.
According to Cao Junji, head of the research team of the Xian tower, the tower has produced more than 10 million cubic meters (353 million cubic feet) of clean air per day since its launch in 2017.
Junji also mentioned that the air quality-related improvements over an area of ten square kilometers (3.86 square miles) in Xian, which still depends on coal in terms of heating, something that adds significantly to the city's air pollution.
Although the facility still uses a spate of greenhouses located near the tower to help heat up polluted air, which then passes through multiple layers of cleaning filters, the greenhouses cover an area about half the size of a soccer field.
However, residents still remained at odds over the effectiveness of the tower, with some claiming that the air quality in the city has improved significantly and others insisting that they see no improvement.
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