image courtesy: cheapflights.com & evac-train.com
No more dirty tracks and stinking toilets in trains may become a thing of the past, Indian Railway has installed VACUUM TOILETS for the first time in the trains. The trail run is in progress, fitted in the A.C first class of DIBRUGARH Rajdhani with an approximate cost of 3 lakhs , these toilets are also equipped with BIODIGESTER.
The basic reason behind using a vacumm toilet is being eco- friendly as it consumes 80% less water than conventional(currently used) toilets in Indian Railway coaches.
VACUUM TOILETS
Vacuum toilets uses an active vacuum instead of a passive siphon, when it flush, it opens a valve in the sever line or septic tank ( to biodigester in I.R coaches) , and the vacuum sucks out the excreta out of the bowl and into the tank. It takes very less water to clean the bowl for the next person. Most of the toilets uses only 0.5 to 1.5 liters of water as compared to 6 liters for a water saving toilet and upto 20 liters for conventional (old) toilets.