A consortium of anaerobic bacteria have been screened and gradually adapted to work at temperatures as low as -5°C through the isolation of psychrophilic bacteria from Antarctica/Siachen. These act as inoculum (seed material) to the bio-digesters and convert the organic waste into methane and CO2. The anaerobic process inactivates the pathogens responsible for water-borne diseases. Bio-digesters serve as reaction vessels for bio-methanation and provide anaerobic conditions and the required temperature for the bacteria. The breakdown/conversion occurs in 24-72 hours.
We have installed more bioloos in schools compared to households. The experience serving/targeting households directly has been good. The cost of a household level bioloo is INR 35,000 - 40,000. We have not initiated household financing, though aware that MFIs do that. We are engaging with institutions, companies and non-profit organizations to promote sanitation.
The basic bio-toilet is priced at INR 40,000. In a household bioloo the quantum of biogas generated is negligible, hence don't encourage. For larger-sized usage, can be, and the cost is additional. The bacteria used in the process of breaking down the waste last lifetime. Can these be used or installed for any other situation besides household use (such as boats)? - Yes