Circular Resource Systems
A comprehensive framework for designing circular systems based on biological nutrient cycling principles.
A comprehensive framework for designing circular systems based on biological nutrient cycling principles. Guides organizations through mapping resource flows, designing technical and biological cycles, innovating business models, overcoming barriers, and measuring progress toward closed loops.
When to Use Circular Resource Systems
Use when transitioning from linear to circular operations, designing new products or services for sustainability, evaluating circular economy opportunities, or building the business case for sustainability investments.
How to Apply
Map Resource Flows
Document all inputs (materials, energy, water), transformations (production processes), outputs (products, waste, emissions), existing loops (recovery and reuse), and leakages (permanent losses).
Outputs
- Material flow diagram
- Sankey diagram
- Leakage inventory
Design Technical Cycles
For durable materials that maintain properties through multiple cycles (metals, glass, certain plastics), establish take-back systems, disassembly and sorting infrastructure, reprocessing capabilities, and remanufacturing programs.
Outputs
- Technical cycle specifications
- Reverse logistics plan
Design Biological Cycles
For biodegradable materials, design loops returning materials to biological cycles through composting, anaerobic digestion, or cascading use (progressive lower-value applications before final composting).
Outputs
- Biological cycle pathways
- Composting/digestion partnerships
Apply Circular Hierarchy
Prioritize strategies from most to least preferred: Refuse/Reduce, Reuse, Repair/Refurbish, Remanufacture, Recycle, Energy recovery, Landfill.
Outputs
- Prioritized intervention list
Innovate Business Models
Shift from product sales to product-as-service, leasing/subscriptions, take-back programs, sharing platforms, or dematerialization.
Outputs
- Business model redesign
- Service offering specifications
Measure Circularity
Track material circularity indicators, product circularity metrics, business model circularity percentage, and absolute system-level impact.
Outputs
- Circularity scorecard
- Progress tracking system