Treated Wastewater Aquaculture: boosting revenue streams and production in Ghana 

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Josiane Nikiema / IWMI; Philip Amoah / IWMI; Mark Yeboah Agyapong ; Ossei Assibey Bonsu / Deputy Director, KMA


solid waste urbanization climate change health and environment safe resource recovery & reuse organic solid waste fecal sludge treated wastewater Public Private Partnership Kumasi Metropolitan Assembly waste stabilization system triple biogas digester fish ponds livelihood Tamale Takrade Hu Accra circular economy business model food security


01 June 21



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Many cities in Ghana lack functional wastewater treatment plants. This affects water quality and can have a devastating impact on both human and ecosystem health. This video explores the underlying issues that hinder processes, include inability to operate and maintain treatment systems due to lack of sizeable infrastructure, low capacity or relying on non-financially viable management models for wastes in urban areas.

To address this latter issue, a Public-Private Partnership business has been set-up under the CapVal Project, between the Trimark Aquaculture Centre and Kumasi Metropolitan Assembly.

This initiative is part of the CapVal project which aims at recovering and reusing waste resources so as to incentivize more investments in sanitation planning and management in Ghana. Overall, it implemented three waste recovery solutions: Waste to compost fertilizer and waste to Briquette fuel, in Akorley, Somanya (Yilo-Krobo municipality) and wastewater-fed aquaculture located system in Kumasi, Ghana.

The project: “Creating and capturing value: Supporting enterprises for urban liquid and solid wastes recycling for food, energy and clean environment” (CapVal) and is led by the International Water Management Institute (IWMI). Ou project partners are: Jekora Ventures Limited, Trimark Aquaculture Centre, Training Research and Networking for Development (TREND), Hivos Foundation (Previously RUAF Foundation), World Agroforestry Centre (ICRAF), Kumasi Metropolitan Assembly (KMA) and Yilo Krobo Municipal Assembly (YKMA).

The CapVal project has received financial support from The Kingdom of the Netherlands, the CGIAR program on Water, Land and Ecosystems (WLE) and the project partners.

The International Water Management Institute implements a research program on circular economy and water pollution.

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