TWO HIGHLY DISTINCTIVE ADVANTAGES
1- Disposes human waste in a 100 % ECO friendly
manner.
2- Genertaes color less, odour less inflammable BIO
GAS(Methane) for cooking, water & room heating etc.
SALIENT FEATURES
1- Exclusively suitable for sub zero temperature of Himalayan Region Glaciers, Railway coaches, Highways, Remote areas, sea ports, Mining, metro cities etc.
2- Easy to transport and install in Hilly terrains, Railway coaches, Metro Footpaths.
3- 100% maintenance free, continuous Biological process.
4- Elimination of Pathogens.
5- Economically Viable.
6- No dependence on the limited and costly conventional energy sources.
SAVES / CONSERVES
WATER, ENERGY, SPACE, ENVIRONMENT, MONEY,
TIME PROMOTES HYGINE AND ENSURES GOOD HEALTH
WHAT IS A BIO TOILET (BIO- DIGESTER)?
CbS with support of technology developed and approved by DRDO – Ministry of Defence has offered an innovative
technology for disposal of human waste in eco friendly manner. These Bio toilets can function at any atmospheric
temp between -40 to 45 degree C. The bacterial consortium degrades night soil at temp as low as -40 degree C and
produces colourless, odourless and inflammable bio gas containing 50 – 70% methane. Two types of Bio Toilets
(Bio digesters) have been designed; one of mild steel and another of fiber reinforced plastic (FRP). Bio toilets
are cylindrical structure with the provision of inlet for human waste and out let for Bio gas. Temp in these bio
toilets is maintained between 5-30 degree C. A person can use the toilet which is connected to the bio-digester.
Night soil degradation occurs through microbial reaction which converts it into bio gas. The smell of night soil,
the disease causing organisms in the night soil and the solid matter are almost eliminated. On dry weight basis
90% of the solid waste is reduced. The gaseous effluent (bio-gas) is continuously let off to the atmosphere. Bio
Gas can be used for various energy incentive activities like cooking water and room heating. Liquid effluent can
be drained to any surface or soak pit with out any environmental hazards.
TECHNOLOGY BEHIND BIO TOILET.
Human waste disposal specially in high altitude and low temp areas Moving Railway coaches , is a burning problem.
The problem is further aggravated in glaciers where ambient temperature drops to -40 degree C and lower. The low
temp stops/ delays the natural bio-degradation of the waste leading to its preservation (accumulation) for long
time. Local heating by direct sunlight exposes the waste buried in the ice causing nuisance and foul smell. The
melting ice takes the waste to rivers disturbing the aquatic eco system. More over human waste is also responsible
for spreading of water born diseases like typhoid, cholera, Shigellosis, Amebic Dysenteries, Diarrhea etc.
This technology is suitable for any area / application in India.
The process under this technology culminates in to treated effluent which is free from Pathogens and is also
environmentally acceptable. The technology has major two components:
a- Low temp active inoculum
b- Temp controlled Bio digester
A consortium of anaerobic bacteria has been formulated and adopted to work at temp as low as 5 degree C. This is
the component which acts as inoculums (seed material) to the bio digester and converts the organic waste into
methane and carbon-dieoxide. The anaerobic process in activates the pathogens responsible for water born diseases.
Bio digester serves as reaction vessel for bio methanation and provides the anaerobic conditions and required temp
for the bacteria. The optimum temp is maintained by microbial heat, insulation of the reactor and solar heating.
TYPES OF BIO TOILETS
1- Temp Controlled (Solar Powered for heating)–for low temp (5 degree C and below) areas.
2- Normal – For plane areas.
3- For Railway coaches.
For Sr. No. 1 and 2, toilets are available in multi seating and single seating.
MAINTENANCE OF BIO TOILET
The components of bio toilet are toilet seat, the drain pipe from the toilet connected to the bio-digester, the
bio-digester itself, the microbial inoculums and the out lets of gas and liquid effluent. All of them should be
maintained and should be in working condition.
DO’S
1- After using the toilet the man should clean his body with not more than 1 liter (two mugs).
2- Bio- toilet can be used conveniently by 50-60 persons every day (in case of temp controlled 7-10 persons).
3- Keep the toilet clean.
4- To check the proper functioning of bio-digester, close the out let valve for 24 hours, open it then, take the
burning match stick close to the out let valve, the gas will burn and this indicates that the bio digester is
functioning well.
DON’TS
1- Do not throw Kerosene, Soap, Plastics, Bottle, Tin Cans, antiseptics inside the toilet seat.
2- Do not let the gas out let valve close.