- Beyond Sustainability - The Case for Regenerative Design
- Understanding Place - Climate, Site, and Solar Geometry
- The Six Integrated Systems - An Overview
- Building with the Earth—Natural Materials
- Passive Solar Design - Heating and Cooling Without Machines
- Off-Grid Energy Systems - Power from the Sun
- Water - Catching, Storing, and Cycling
- Liquid Waste Treatment - Botanical Systems
- Food Systems—Buildings That Feed
- Community Design - Scaling Up
- The Integrated Design Process
- Appendix A: Glossary of Key Terms
- Appendix B: The Pangea Textbook Series
- Appendix C: Key Design Principles at a Glance
- The Regenerative Community Vision
- Site Assessment and Land Reading
- Land Use Law and Legal Frameworks
- Master Planning for Regenerative Communities
- Infrastructure Systems Integration
- Housing Typologies and Density Design
- Community Governance Structures
- Economic Models for Community Development
- Phased Development Strategy
- Community Resilience and Long-Term Stewardship
- Appendix A: Legal Entity Comparison Chart
- Appendix B: Community Design Checklist
- Appendix C: Glossary of Community Development Terms
Constructed wetland systems for liquid waste treatment scale very effectively to community level. A system serving 10-20 households can achieve significantly better effluent quality than individual septic systems while requiring less land area per household and creating a more productive landscape element.
The typical community-scale liquid waste treatment train includes: composting toilets or low-flush toilets, a primary settling chamber (septic tank function), a subsurface flow constructed wetland, and a surface flow polishing wetland before irrigation reuse. The wetland system supports food-producing plants and creates habitat.
Community-scale systems benefit from an operator — someone responsible for monitoring inflow and outflow water quality, maintaining pumps and distribution valves, and managing the wetland vegetation. This role can be part-time and rotated among community members with training.
