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Brussels Briefing n. 56: Olufunke Cofie "Overview of best practices in promoting a sustainable use of resources in Africa"


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The Brussels Development Briefing n. 56 on The Land-Water-Energy nexus and the Sustainability of the Food System organised by CTA, the European Commission/EuropeAid, the ACP Secretariat and Concord was held on 3rd of July 2019, 9h00-13h00 at the ACP Secretariat, Avenue Georges Henri 451, 1200 Brussels, Room C.

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Brussels Briefing n. 56: Olufunke Cofie "Overview of best practices in promoting a sustainable use of resources in Africa"

  1. 1. Olufunke Cofie West Africa Regional Representative, IWMI Presentation at the Brussels Policy Briefing n. 56: The Land-Water-Energy nexus and the Sustainability of the Food System Overview of best practices in promoting sustainable use of resources in Africa Water-Food-Energy nexus in practice
  2. 2. Presentation Summary 1. Introduction 2. The nexus in practice 3. Solar Powered Irrigation System 4. WEF Nexus and the sustainability of the urban food system. 5. Conclusion
  3. 3. FAO 2014. Walking the Nexus Talk Introduction • Current demand and resource use trajectories undermine inclusiveness and threaten sustainability • This can be addressed by more efficient use of resources • Integrated solutions (nexus approach) are necessary to guide development policies and procedures
  4. 4. Nexus in practice Nexus Practices Location Water- Food • Efficient irrigation practices • Wastewater irrigation/Aquaculture TAAT-WEC: Efficient water lifting and application on 5 crops in 7 Countries: West, East & southern Africa Energy- food • Solar powered irrigation • Recycling food waste to bioenergy Ethiopia, Ghana, Mali, Tanzania; Kenya, Uganda, Benin, Ghana Water- Energy • Hydropower • Wastewater treatment and reuse Tana & Volta River basins, Maximizing benefits from natural & built water infrastructures
  5. 5. Solar Powered Irrigation System in Africa • Significant potential for improved food security • Increased farmer investments in irrigation technologies • Limited access to energy for pumping water • Solar energy-based pumps – ‘cost- effective’ and ‘clean’ approach for irrigation in Africa
  6. 6. Schmitter P. et al. (2018). Solar PV Suitability in Selected countries Ghana Current irrigated land • ~221,000 ha Solar powered Irrigation potential: • GW (7m): ~2.1 M ha • GW (25m): ~ 3.5 M ha • GW & SW: ~ 3.7 M ha Main constraints: • Land cover • Groundwater storage Ethiopia Current irrigated land • ~1 M ha Solar powered Irrigation potential: • GW (7m): ~2.1 M ha • GW (25m): ~ 6.3 M ha • GW & SW: ~ 6.8 M ha Main constraints: • Elevation/rainfall • Groundwater depth Mali
  7. 7. 1: On grid: SPICE – Dhundi, Gujarat, India 2: Off grid: Irrigation Service Provider (ISP Model)– Bihar, India 4: Decentralized grid: Solar Irrigation + Home enterprise 3: Off grid: Solar Micro-irrigation – Ethiopia, Ghana, Africa Range of solar power irrigation business models
  8. 8. Deploying solar irrigation solutions Make solar equitably accessible Make solar environmentally sustainable Solar irrigation for SHF Integrated water resource management Irrigation management and efficiency Feasible outscaling Access to tailored finance Access to Appropriate technologies Reduced prohibitive upfront costs • Two-thirds of Africa’s rural areas are not linked to grids. Solar can provide clean power off-grid for multiple uses Enhancing social inclusion Off-grid where landless farmers taking joint lease Increased subsidy for women Incentives to safeguard groundwater On-grid solutions in India. Selling solar ‘as a crop’ to mitigate overexploitation of groundwater & enhance incomes1 Off-grid systems: Can provide energy access, food and livelihood security, access to water2 Schmitter, 2019 In Ethiopia, solar PV pumps could transform 18% (3.7m ha) of the country’s rainfed agricultural land and replace 11% of the current hydrocarbon fuel pumps3
  9. 9. A suite of Reuse Enterprises • Wastewater /sludge to fertilizer - Fortifer • Waste to energy- briquettes • Wastewater aquaculture • Wastewater irrigation WEF Nexus and the sustainability of the urban food system: Recovering and reusing resources from food and wastewater for other sectors Technology // Business Models // Institutions // Policies 9 Lecture delivered at IMT Atlantique, Nantes from 17-20 Dec 2018
  10. 10. Converting Waste & Sludge to Fertilizer, GHANA 700 MT of sorted food waste Regular addition of water FortiferTM 240 MT of dewatered sludge Composting Enrichment Pelletization Fecal sludge from tankers; 4,200 m3 from Public toilet; 8,400 m3 from households Liquid Dewatering Post-treatment Up to 10,000 m3 of treated liquid discharged Inorganic waste to landfill Sorting / air drying Food waste
  11. 11. WW treated (m3/d) Main WWTP processes in the country Products Drivers for reuse in aquaculture Fish Kumasi, Ghana 225 Waste stabilization ponds (1 ha)  40 MT of African Catfish  Fingerlings  Lower WW treatment cost  Availability of land  Limited capital  Profits  Job for women fish mongers Status of WW treatment and reuse for aquaculture in Ghana and Bangladesh (Source: Amoah et al. 2018-15; Drechsel et al. 2018-15) Treated wastewater for aquaculture
  12. 12. Food Waste to Energy IWMI, GhanaSafisana, Ghana Nairobi, World Agroforestry Centre WABEF, Benin
  13. 13. Ongoing and future work: Tackling global water challenges through R4D Missions Examples of on-going work • Nexus trade-offs analysis • Mapping and analysis of solar irrigation supply chain and business model development for other countries • Scaling Research, piloting diverse business models with the private sector (solar irrigation technology suppliers, resource recovery and reuse) and monitoring
  14. 14. THANKYOU