The Tiger digestor tank is a digester tank that stores and treats human waste by decomposing it using vermifiltration.
Intellectural Property Type
User Provision Model
Users obtain Tiger Toilet tanks through direct sales or from NGOs.
Distributions to Date Status
1500 toilets in 50 Indian villages
Time until emptying
The digester tank contains earthworms and other organisms that decompose the waste.
Technical support is performed by the user or the supplier of the product. Tiger Toilets provides a team for installation.
Emptying needed every 5 years
Manufacturer Specified Performance Parameters
The manufacturer specifies performance targets related to limiting odor and flies, and ensuring that 85-90% of the waste in the digester is broken down daily.
Vetted Performance Status
No direct safety concerns
Complementary Technical Systems
Toilet and superstructure
Academic Research and References
Fulong, C., et al., Technical and user evaluation of a novel worm-based, on-site sanitation system in rural India, Waterlines, 2016.
Compliance with regulations
Pathogen reduction and total solid reduction fulfills Indian Standards.