Train bio-toilets set to be stink-free, new pumps to clean tanks in 10 mins


Train bio-toilets set to be stink-free, new pumps to clean tanks in 10 mins

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.

ECO-FRIENDLY CHANGE

* 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

‘BIO-TOILET’

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.

bio toilet1

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

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