Byproducts of bio-toilets

Q.  Which of the following is/are true regarding?

1) The human waste in bio-toilets is degraded to give out only water and methane.
2) The biodegradation takes place by aerobic bacteria.
- Published on 29 Mar 16

a. Only 1
b. Only 2
c. Both 1 and 2
d. Neither 1 nor 2

ANSWER: Neither 1 nor 2
 
  • The human waste in bio-toilets is biologically degraded by anaerobic bacteria.
  • It is converted to water, methane and carbon dioxide.
  • Bio toilets are designed by DRDO.
  • Psychrophile bacteria are used, which are invisible to the naked eye and originated in the uninhabitable climes of Antarctica.
  • Unlike traditional toilets which discharge waste on the tracks, bio-toilets treat the waste in a tank below the coaches where it is converted into water and harmless gases.
  • The leftover in the tank is free from harmful germs

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