‘Hybrid vacuum toilets’ by Indian Railways

Q.  ‘Hybrid vacuum toilets’ are being used in Indian railways. They have been designed and developed by

- Published on 08 Jul 16

a. ISRO
b. IISc
c. DRDO
d. Indian Railways

ANSWER: Indian Railways
 
  • The first prototype of a 'hybrid vacuum toilet' has been installed in the Delhi-Dibrugarh Rajdhani.
  • The prototype consists of a custom designed vacuum toilet adapted from a commercially available vacuum toilet that is used in aircraft.
  • The toilet evacuates its discharge into a biodigester tank which is now successfully proven in the bio-toilets that are already in use in many other trains run by Indian Railways.
  • The biodigester tank is fitted underneath the coach and contains anaerobic bacteria that convert human waste into water and small amount of gases before discharging the same on the track.
  • The design has been devised by the Development Cell of the Railway Board and combines the advantages of vacuum toilets and those of bio-toilets to create a new design of 'Hybrid Vacuum Toilet'.

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