India gets first smog tower in Delhi's Connaught Place to battle air pollution

The smog tower is 24m high, like an eight-story building and an 18-meter concrete tower topped by a 6-meter high canopy, the base of the tower houses 40 fans, 10 fans on each side.

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Image source: Arvind Kejriwal Twitter

Delhi houses its first 'smog tower,' inaugurated by Chief Minister Arvind Kejriwal. It is an experimental setup worth Rs 20 crore to purify the air in a 1 km radius around the structure at a rate of around 1000 cubic meters of air per second. It is located behind the Shivaji Stadium Metro station in Connaught Place. 

The smog tower is 24m high, like an eight-story building and an 18-meter concrete tower topped by a 6-meter high canopy, the base of the tower houses 40 fans, 10 fans on each side. A single fan can discharge 25 cubic meters per second of air, adding up to 1000 cubic meters per second for the tower. There are 5000 filters in two layers inside the smog tower. The fans and filters are imported from the United States. 

Tata Projects Limited has implemented this project, and IIT-Bombay has collaborated with the American university to replicate this technology. The tower uses a downdraft air cleaning system developed by the Minnesota university. It sucks polluted air at the height of 24 m and releases the filtered air from the bottom of the tower at 10 m height above the ground. Senior Environmental engineer Anwar Ali Khan was the incharge of this project.