Soon, passengers on long-distance trains won’t have to worry about stinking bio-toilets, as railways has developed an extractor that can clean sewage tanks in 10 minutes. The machines are under field trials at WR’s Mumbai Central & Bandra terminus depots.
* 4,000-odd tons of human waste discharged from trains across India every day
* In conventional toilets, waste gets discharged on railway tracks
* In Jan 2011, Indian Railways started installing bio-toilets on trains
Th bio-toilet has a tank where solid human waste is converted to methane, water and leftover digestate through biological degradation with the help of an inoculum.
DISPOSAL OF WASTE
At present, a vacuum extractor sucks entire content of bio-toilet tanks. So new inoculum has to be filled into tank after clean-up. This extractor can be used for only 60 coaches per month. Toilets would get chocked or start to stink as there’s no frequent cleaning. Read more