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Connection of a Toilet to a Biogas Digester
Overview
Household toilet can be connected to a biogas digester. These toilet systems can turn human waste into biogas.
Types of Toilets
At least two types of toilets can be connected:
- pit latrine type without water flush
- pit latrine type with manual 1litre flush
Impacts
- Access to modern energy: The toilet is connected to an anaerobic digesters which produces biogas that can be used for lighting, cooking and generating electricity.
- Fuel switching: Substitution of unsustainably harvested biomass and maintenance of forest habitat, with associated biodiversity benefits and local benefits to soil stability and to the dry season stream flows in the region[1].
- Time saving: Rural women expend a substantial portion of each day gathering fuel wood and cooking
meals. - Productivity: The residue of the process, bio-slurry, can be easily collected and used as a potent organic fertiliser to enhance agricultural productivity[1].
- Health: Connecting biogas digesters to lavatories contributes to improving hygiene and sanitation practices, and the use of biogas for cooking results in a smoke-free indoor environment. [1]
Existing Projects / Case Studies
- The National Biogas Programme (NBP), Ethiopia
- Getting Attached, A study on domestic biogas and the integration of sanitation, Ethiopia
- Case study of sustainable sanitation project - Public toilet with biogas plant and water kiosk Naivasha, Kenya
- From open defecation to toilets that produce biogas and fertiliser New innnovations in compost toilets aim to make a dent in sanitation and energy problems in the developing world, India
- Biogas from human waste wins over few cooks, Nairobi, Kenya
- BIOGAS FOR BETTER LIFE: AN AFRICAN INITIATIVE Report on the Feasibility for a National Household Biogas Commercialization Program, Uganda
Further Information
- Here a few information concerning conection of the pipes from the toilets to the digester
- experiences from India
- Biogas Portal on energypedia
- susana.org
References
- ↑ 1.0 1.1 1.2 SNV: http://bit.ly/1wN6IJn
