
WASHKing
WASHKing
Sanitation
Ghana
Building affordable bio-digester toilets for slums in Ghana, that improve sanitation and convert waste into fertiliser.
The Innovation
Safe and Sustainable Sanitation
WASHKING offers an innovative and environmentally friendly solution to address the sanitation crisis faced by underprivileged households, communities, and institutions. Their approach involves the use of biodigester toilets, which provide affordable and sustainable sanitation solutions.
The biodigester system employs a bio-matrix that separates fecal matter into liquids and solids. Bacteria and earthworms within the bio-matrix effectively break down the solids into natural fertilizer, while a simple charcoal filter cleanses the liquids, allowing them to seep harmlessly and odor-free into the ground.
This approach significantly reduces the risk of overflow and surface water contamination. The biodigester tanks only require emptying every five years, minimizing maintenance and operational costs.

What Makes It Stand Out
Why WASHKING?
A typical aid organisation would address the health issue of open defecation by donating and building toilets. Founder Dieudonne Kwame saw the business opportunity of creating a pay-per-use lease model that allows landlords to charge a little extra for their rooms so that the toilets can pay for themselves. This is the type of business solution for development problems that Impacc seeks to support.

Impact
Where the change happens
Economics
Stable earnings for employees, local craftsmen and suppliers
Service teams for pay-per-use community toilets
Climate
Limited water usage due to micro-flush
Reduction in water pollution
Produces environmentally friendly fertiliser
Health
Reduction in waterborne diseases such as cholera and diarrhoea
Hygienic, safe defecation
Odour free toilets
PEOPLE
Meet the
founder
OUR PORTFOLIO
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