china builds ‘world’s biggest air purifier’ (and it seems to be working) - air purifier online

Experimental tower of more than 100 (328 feet)
According to the scientists who led the project, the top level in northern China-known as the world's largest air purifier by operators-has brought about a significant improvement in air quality, authorities are seeking solutions to the country's long-standing smog problem.
The tower, already built in Xi'an, Shaanxi province, is being tested by researchers at the Institute of Earth environment, Chinese Academy of Sciences.
Cao Junji, head of the study, said air quality had improved within a 10 square kilometer range (3. 86 square miles)
In the past few months, the tower has produced more than 10 million cubic meters (
Cubic feet 0. 353 billion)
Since its launch, there has been clean air every day.
Cao added that in the days of severe pollution, the tower was able to reduce the smoke to near medium levels.
The system works by covering a greenhouse about half the size of a football field at the bottom of the tower.
The polluted air is sucked into the greenhouse and heated by solar energy.
Hot air then rises from the tower and passes through a multi-layer cleaning filter.
Cao said: "In terms of scale, this tower has no peers . . . . . . The results are very encouraging . ".
This tower has no peers in size . . . . . . The results are very encouraging. Cao Junji, Institute of Earth environment, Chinese Academy of Sciences, can experience heavy pollution in winter, and most of the city's heating depends on coal.
However, the operator of the tower said that the system was still effective in the cold months, as the coating on the greenhouse enabled the glass to absorb solar radiation with greater efficiency.
Cao's team has set up more than a dozen pollution monitoring stations in the area to test the impact of the tower.
The average decline in Pm2. 5.
5-fine particles in smoke considered to be the most harmful to health dropped 15% during heavy pollution.
Because the experiment is still in progress, the results are preliminary, Cao said.
The team plans to release more detailed data in the event of a comprehensive scientific assessment of the overall performance of the facility.
The Xi'an smog tower project was launched by the college in 2015 and was completed in a development zone in Chang 'an district last year.
The purpose of the project is to find an effective, low-cost manual method for the removal of atmospheric pollutants.
The cost of the project has not yet been disclosed.
The building, previously considered China's largest smog tower, was built last year by Dutch artist Daan Roosegaarde in a creative park in Beijing-798. The seven-metre (23-feet)
About 8 m³ Tower output (282. 5 cubic feet)
Clean air per second.
It is driven entirely by electricity, most of which are produced by coal.
Power plants in China.
Cao said, however, that their tower in Xi 'an hardly needs electricity to run.
"Almost no power input is required throughout the day.
"The idea works very well in the test run," he said . ".
The air quality has indeed improved.
Several Xi'an people from Shaanxi Normal University told the South China Morning Post that they have noticed the difference since the tower began to operate.
The manager of about 1 km restaurants (0. 62 miles)
The northwest direction of the facility said she noticed an improvement in air quality this winter, although she had no prior knowledge of the use of the tower.
"I do feel much better," she said . ".
A student at Shaanxi Normal University studied environmental science a few hundred metres from the tower, saying the improvement was obvious.
"Every time I pass by, I can't help but look at the Tower.
It is very tall and has eyes.
But it's also quiet.
"I can't hear the wind coming in and out," she said . ".
"The air quality has indeed improved.
I have no doubt about this.
"However, a teacher at Meilun Tiancheng Kindergarten on the 10 th --square-kilometre (3. 86-square-mile)
Zone said she felt no change.
"It's as bad as anywhere else," she said . ".
The experimental facility in Xi'an is a scale.
Cao and his colleagues hope to build a bigger smog tower in other Chinese cities in the future. A full-
The size of the tower will reach 500 (1,640 feet)
200 in diameter (656 feet)
According to their patent application filed in 2014.
The area of the greenhouse can cover nearly 30 square kilometers (11. 6 square miles)
The plant will be strong enough for a small city to purify the air.
China makes "the world's largest air purifier"
It seems to work)
First appeared on the South China Morning Post for the latest news on the South China Morning Post to download our mobile app. Copyright 2018.