Sign In
Learn bits
Ecology & Environment
Pradeep Kumar

24/08/21 13:05 PM IST

Delhi’s new smog tower

In news

Delhi got a ‘smog tower’, a technological aid to help combat air pollution

Details of tower
  • The structure is 24 m high, about as much as an 8-storey building — an 18-metre concrete tower, topped by a 6-metre-high canopy. At its base are 40 fans, 10 on each side.
  • Each fan can discharge 25 cubic metres per second of air, adding up to 1,000 cubic metres per second for the tower as a whole.
  • Inside the tower in two layers are 5,000 filters.
  • The filters and fans have been imported from the United States.
How it works ?
  • The tower uses a ‘downdraft air cleaning system’ developed by the University of Minnesota.
  • IIT-Bombay has collaborated with the American university to replicate the technology, which has been implemented by the commercial arm of Tata Projects Limited.
  • Polluted air is sucked in at a height of 24 m, and filtered air is released at the bottom of the tower, at a height of about 10 m from the ground.
  • When the fans at the bottom of the tower operate, the negative pressure created sucks in air from the top.
  • The ‘macro’ layer in the filter traps particles of 10 microns and larger, while the ‘micro’ layer filters smaller particles of around 0.3 microns.
Source: Indian Express

More Related Current Affairs View All

28 Aug

IADT-1

'Recently, the Indian Space Research Organisation (ISRO) successfully carried out its first Integrated Air Drop Test (IADT-1), a crucial milestone in the preparation for the countr

Read More

28 Aug

H-1B visa changes

'H-1B visa changes 2025: United States Commerce Secretary Howard Lutnick called the popular H-1B visa program a “scam”, saying that American businesses should be focuse

Read More

28 Aug

UGC’s Learning Outcomes-based Curriculum Framework

'Recently, the University Grants Commission (UGC) issued a public notice on its development of a draft Learning Outcomes-based Curriculum Framework (LOCF).' LOCF is intended to

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps