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The report examines the transition from linear to circular resource use in wastewater management, focusing on the socio-cultural barriers to recycling sewage sludge as fertilizer. It analyzes historical practices in the EU and provides detailed case studies from three river basins in Sweden, Poland, and Finland, highlighting how perceptions of risk and regulatory gaps hinder the adoption of eco-technologies.

The document explores how battery storage can enable eCooking in areas with weak, unreliable, or non-existent electricity grids. It specifically proposes a Battery Swapping Model (BSM) where users lease batteries from a central station, reducing upfront capital burdens and ensuring professional battery maintenance. The paper identifies a 'Goldilocks Zone' for this model—informal urban settlements, humanitarian settings, and mini-grid edges—where population density and proximity to stations make daily swaps practical. It concludes that while promising, the BSM requires targeted pilots to determine financial and operational viability.