2. Current Specs
• 50 villagers
• 3 compost toilets
• 5 cows, 2 pigs (w/ babies)
• 3 acres food production
• # lbs of food waste/week
• # gallons of greywater into septic
3. System Tanks Available
• 600 gallon brewer tank
• 300 gallon O2 permeable Flex tank
• 6 30 gallon water softener tanks
• 4 55 gallon drums
4. Equipment Needed
• Recirculation Pump • Microcontroller circuit
boards, wiring
• Hammer/Colloid Mill
• Solar water heater -
• PVC Piping and Fittings glass panel, black paint,
container for water
• Spargers/Aerators
• Backup heating boiler
• Sensors - pH, Redox,
Dissolved O2, etc
5. System Ideas
• Accelerated Composter - convert organic
waste into usable liquid compost tea
• Anaerobic Digester - generate methane for
cooking fuel
• Wastewater Treatment System - clean
community water for reuse
6. Location
• Inside one of the workshop spaces near
CRIC house
• Access to water, electricity, wireless
• Access to tools for building
• Close to the CSA farm
• The right progressive energy
7. Collection
• Every house has a bucket for food waste
• CSA farm has a designated bucket
• Animal waste bucket
• Compost toilet buckets
• Once a week, bins are brought to system
for processing
8. Microbiological
Culturing
• The most important thing in effective waste
conversion is proper conditions for
microbiological population growth
• All variables need to be closely measured
and controlled (e.g. pH, temperature, O2)
• Appropriate microbes need to be sourced
and colonized
9. Operation of System
• A team of 3 to engineer the system
• One technician on site daily to monitor
operations
• One person to drive around community to
retrieve waste buckets
• Full community participation in waste
management
10. Case Example: Prove
Value of Compost Tea
• Market the compost tea to organic farmers
and growers around Sonoma
• Deliver in 250 gallon totes
• Selling point over winter - remediate soils
• Apply to the farm at the village to boost
food production
