RESOLVER aims to mainstream nature-based solutions (NBS) for circular sanitation and resource recovery in small rural and peri-urban communities
across Europe and Latin America. It responds to the challenge of inadequate wastewater infrastructure in low density areas by integrating NBS into
bioeconomy strategies that recover water, nutrients, and biomass while enhancing ecosystem services. The project builds on validated tools
developed by consortium partners: OCTOPUS platform for scenario-based infrastructure planning and Nat4Wat tool for NBS selection. These tools will
be upgraded to support multilingual use, include sludge treatment options, and reflect local governance and economic realities. Pilots in Peru, Brazil,
Dominican Republic, Spain, and Austria will test NBS under four sanitation scenarios: greywater reuse, faecal sludge treatment, urine separation, and
decentralized wastewater treatment. All pilots are fully operational, enabling immediate monitoring of performance, resource recovery, and co-benefits.
RESOLVER includes co-creation of context-specific business models, participatory stakeholder engagement, and cross-regional knowledge
exchange. It will produce planning 4 tools, validated technical data, and adaptable governance and financing strategies. The project also addresses
ecosystem co-benefits often overlooked in sanitation planning, including biodiversity and cultural ecosystem services. By aligning with the SDGs, the
EU Wastewater Directive, and sanitation policies in Brasil, Dominican Republic, and Peru, RESOLVER will advance circular and inclusive sanitation,
supporting policy uptake, environmental protection, and local resilience in vulnerable communities.
