More SCR trains to feature bio-toilets

The bio-toilet costs about Rs.80,000 apiece and uses uses bacteria to decompose night soil. Authorities plan to install 200 of them in Padmavathi, Ajanta and other trains

Updated - November 16, 2021 10:06 pm IST

Published - May 17, 2013 11:32 pm IST - HYDERABAD:

The bio-toilet installed in one of the trains.

The bio-toilet installed in one of the trains.

After conducting a successful trial run of using bio-toilets in 17 coaches of Hyderabad-Mumbai and Kacheguda-Bangalore Express trains, the South Central Railway (SCR) has now decided to install 200 bio-toilets in a few more trains very shortly.

Bacterial decomposition

Developed by Railway Research and Standard Organisation (RDSO) and Defence Research Development Establishment (DRDE), a bio-toilet, has six compartments and uses Inoculums (bacteria) to decompose night soil.

The night soil from commode enters into the bio-tank, where the inoculums are stored and gets decomposed by the bacteria. The decomposed human soil will next enter into chlorine tank and to get purified. Finally, the out put will be water and gas, said SCR spokesperson.

Onerous task of hygiene

Maintaining cleanliness at railway stations, especially the tracks at stations is always a task. Conventional toilets in trains discharge night soil onto the track, causing unhygienic conditions and corrosion to track and coach fittings, he said.

But with simple design and easier installation in coaches, these bio-toilets help in ensuring zero discharge of night soil on the tracks. SCR had commenced a trail run of using these bio toilets in Hyderabad-Mumbai and Kacheguda-Bangalore Express trains in January and it was found beneficial, he informed.

Each bio-toilet costs about Rs.80,000 and authorities are planning to install 200 of them in Padmavathi, Ajanta and other trains in a few months, he explained.

Bio-toilets with provision to replenish inoculums and chlorine are easy to maintain.

However, these toilets would get choked, if passengers dump bottles, plastic carry bags, cups, napkins etc into it via commode. It would choke the toilet, making it unusable, he added.

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