Bio-Toilets Installed in Indian Railways
As part of their drive to become eco-friendly, Indian Railways has implemented the use of bio-toilets in their tracks. Unlike a normal toilet, in the bio-toilet only the water trickles down the track, while the sludge is retained in the tank.
They aim to implement this 100% in all their 9,000 trains by 2013, shifting from the biological toilets that waste water profusely. While there are detractors on the feasibility of this investment, the logic of the whole system flow of bio-toilet installation is indeed something to ponder on.
This toilet uses less than 5 litres of water per flush against uncontrolled use of water in open toilets. In a year, about a kg of waste will be collected in the tank, which will be cleared manually. Though it will save water, the bio-toilet comes at a price. For every coach, the railways will have to shell out Rs 8 lakh as equipment cost and Rs 1.5-2 lakh as operations cost per year.
(Source) Down to Earth
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