City-based Hyderabad Science Society has said it is in the process of developing a new chemical-free technology to deal with the problem of rats and other rodents on the trains.

It uses high pressure compressed air mixed with sand to kill rats, HSS Director Sanjar Ali Khan said today.

Media reports about the rodent problem on trains prompted the organisation to take up this project, Khan said.

“To attract rats, we have prepared a special chamber and the moment a rat enters this chamber its movement is detected by an electronic circuit and there will be a sudden blast of sand mixed with high pressure air directed into the chamber which kills the rat instantly,” he said.

The system can kill four rats every minute, he added.

source: http://www.business-standard.com / Business Standard / Home> PTI Stories> National> News / by Press Trust of India / Hyderabad – February 16th, 2014