The TFP Composting Toilet
Toilets for People
The TFP Composting toilet is self-contained, dry composting toilet.
The TFP Composting Toilet is a urine-diverting, self-contained, waterless composting toilet. The core technology is a rotating, horizontally-mounted drum that accelerates the aerobic composting process.
Nicaragua, Mexico, Peru, Haiti, Senegal Interview with representative
1. El Porvenir in La Palma, Nicaragua
2. American Friends of La Korsa (AFLK) in Tambacounda, Senegal
3. Fundacion Haciendas del Mundo Maya (FHMM) in Campeche, Mexico
4. Rise Haiti and Foi et Joie in Port-au-Prince, Haiti
Envirolet, Sun-Mar Interview with representative
Goal 6: Clean water and sanitation
Communities that have been triggered to want toilets of their own and are interested in waterless composting toilets. TfP focuses on flood-prone communities and other locations where conventional toilet technologies, like flush toilets, fail. Interview with representative
60 Interview with representative
Type of toilet
Method of evacuation
How the fecal sludge is stored
The holding volume of the containment
Time until emptying is estimated to be needed
The TFP composting toilet design relies on a horizontally mounted rotating drum, much like a garden composter, that sits inside a box. Following use, individuals cover waste with saw dust or dry leaves, spin it once a week. Natural aerobic decomposition eliminates dangerous pathogens and foul odors. It also reduces the volume of the waste by 80% so the user only needs to empty the drum out once every 2 months. After emptying, TfP suggest users dig a hole a foot deep, bury the compost with wood ash as a disinfectant and cover it with dirt. The compost can also be used as fertilizer for planting trees for cash crops or reforestation.
The TFP Composting design specifications are: – Weight, 70 pounds – Dimensions in inches, 18W x 29L x 23H – 7.5 gallon drum and 5 gallon bin capacity. Interview with representative
Toilets for People provides training and technical support to their NGO customers. Those implementing NGOs then provide technical support to end users. Toilets for People interacts directly with end users on occasional field visits. Interview with representative
Replacement components can be made with local materials.
The TFP Composting Toilet requires two months active composting of waste in its drum, after which composted waste is removed by user to a hole nearby where it is covered in wood ash and dirt. A tree can be planted in the compost hole. The toilet has a 10-year life expectancy.Interview with representative
The toilet‘s usage time for one household before emptying compost barrel is ~2 months.Interview with representative
It is recommended that gloves be worn while handling waste material.Interview with representative
Kanal, Abraham, et al. A Novel Composting Toilet to Decrease Open Defecation in an Urban Slum in Belén, Peru. Brooklyn, NY: Albert Einstein College of Medicine, 2015.
Field trials.Interview with representative
Check out this video featuring the TFP CompostingToilet.
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