- 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
Human liquid waste is divided into two categories based on contamination level. Greywater is waste water from sinks, showers, bathtubs, and laundry machines — water that has been used but has not come into contact with toilet waste. It is relatively low in pathogens but high in nutrients, soaps, and suspended organic matter. Greywater makes up the majority of a household’s waste water by volume (typically 65 to 75 percent).
Blackwater is waste water from toilets, which contains fecal matter, pathogens, and concentrated nutrients. Blackwater requires more intensive treatment than greywater and must be handled with greater care during construction and maintenance. In a Pangea building, greywater and blackwater are managed through separate but connected treatment systems.
