Background and context

The project operates in Accra and Kumasi, Ghana. Key issues tackled include the lack of proper sewage and solid waste management systems in densely populated urban areas, high public health risks due to poor sanitation, methane emissions from unmanaged waste, soil degradation affecting food security, and the increasing demand for renewable energy and nutrient-rich fertilizer. 

Approach

The initiative employs anaerobic digestion and fermentation technologies to process waste efficiently. Local government authorities, private sector partners from the food processing industry, community members, and waste collection services collaborate with Safisana’s local expert teams to implement the project. The process begins with collecting faecal sludge from public toilets and organic waste from food markets, abattoirs, and food industries. The waste is then processed in biodigesters, generating renewable natural gas that is converted into green electricity and fed into the national grid. Additionally, residual waste from digestion is turned into organic fertilizer (Asase Gyefo), which is sold to local farmers to improve soil fertility and boost crop yields. The project operates on a self-sustaining revenue model, generating income from waste treatment services, electricity sales, and fertilizer distribution, ensuring long-term financial viability.

Outcomes and impacts

The project has led to significant improvements in community health by reducing direct exposure to waste, lowering the presence of rodents, and decreasing the spread of diseases. By promoting circular food production systems, it enhances food security while providing clean, affordable energy to the local population. Job creation for small and medium enterprises (SMEs) has boosted economic livelihoods, while sustainable waste management solutions help meet national regulatory standards. Furthermore, the initiative supports wastewater treatment plants by improving their capacity and lowering operational costs. Revenue generation from waste processing enhances financial sustainability, while environmental benefits include reducing the overall carbon footprint, improving water quality, and recovering valuable nutrients. The project also aligns with corporate Environmental Social Governance (ESG) targets, strengthening private sector engagement in sustainability efforts.

Lessond learned

The project demonstrated financial sustainability through revenue from energy and fertilizer sales, ensuring long-term viability. The decentralized management approach, supported by remote expert teams, allowed for efficient operation and scalability, making it adaptable to other locations. Securing initial investment remains a significant barrier, requiring donor and institutional support to expand operations. Additionally, navigating regulatory approval for waste-to-energy projects has proven complex, highlighting the need for clearer policies and frameworks to facilitate sustainable resource recovery initiatives.