The Ashiaman farmers are to use 4 bio gas digesters connected to a 2 stance water closet toilet to generate biogas and organic fertilizer. The 8 m3 capacity digester has a 20-24 hr retention time for the raw materials will be connected to a mixer which is a lager tank where animal waste and human waste will be mixed and harmonized to optimize bio-gas production.
The Phase one of this initiative is to taste the quantities and quality of bio gas that the toilet will produce and possibilities of the farmer harvesting enough energy to for their milling processes, it will look at quality of the fertilizers which would be the final output of the bio gas digester. This will also encompass monitoring of the quantities of input and bio gas output. The bio gas will be monitored on using gas meter on a daily basis.
In Phase two the major task will be looking at the use of the fertilizer which is end product. The famers will have to taste the fertilizer in their garden verses the inorganic fertilizers.
Famers association: and involvement in the project:
The farmers are organized under the Ashiaman Famer’s cooperative society which was registered in 1993. Under the leadership of a five man management community the farmers will manage the operation and maintenance of the biogas digester and the latrine facility. For example they will recruit the attendant to collect user from the community members. And run an account with society bank. It’s estimated that the facility will raise 2100 Ghana cedis an equivalent of 1050 Euros, supposing the forty people use the facility for 365 days in year each paying 15 Ghana pesewas.
The bio gas digester project is Safi Sana initiative as part of the their mandate in Ghana, to research into the sanitation service delivery models of Ghana and develop principles of refuse of the fecal matter and generation of energy thereof. Safi Sana develops and manages sustainable and market driven concepts for sanitation and resourcing of waste (biogas and fertilizer.