Bio toilet is a decomposition mechanized toilet system which decomposes human excretory waste in the digester tank using specific high graded bacteria (aerobic or anaerobic) further converting it into methane gas and water. Bio toilet is a different toilet as compare to the traditional restrooms. It saves a lot of water and helps in keeping the station clean.Even after 100 years of invention of flush toilet, today only 15% of people in the world have a flush toilet. You will be surprised to know that only 3% peoples of rural India and 25% of urban Indians have flush toilets. The Indian government has restricted the practice of manual scavenging since 2013. So in order to compliance this order; the Indian Railways has decided to introduce bio-toilets in the trains& Stations Bio toilet is completely different toilet as compare to the traditional restrooms. It saves a lot of water and helps in keeping the environment clean.
Bio-digester technology treats human waste at the source. A collection of anaerobic bacteria that has been adapted to work at temperatures as low as -5°C and as high as 50°C act as inocula (seed material) to the bio-digesters and convert the organic human waste into water, methane, and carbon-dioxide gases. The anaerobic process inactivates the pathogens responsible for water-borne diseases and treats the shit without the use of an external energy source. Under the bio-toilet concept of the DRDO, the bio-digester tank in every toilet is filled with inoculums containing four types of bacteria. The water trap system in the toilet prevents air from getting into the tank, the human waste is processed by anaerobic bacteria in seven chambers in the tank and the methane gas is allowed to escape into the air.
