scaling anaerobic digestion down to onsite microsystems

24 Pages·2015·3.72 MB·English

Distributed Bioenergy Solutions
SCALING ANAEROBIC DIGESTION DOWN
TO ONSITE MICROSYSTEMS
Jan Allen, Impact Bioenergy
Aeron Jensan, Greenerzone BC
Gib Dammann, Zero Waste Vashon
Presented at
US Composting Council Annual Conference
Austin, TX January 21, 2015
Authors
Jan Allen is CEO of Impact Bioenergy; a manufacturer of pre-
fabricated systems that convert organic materials into renewable
energy, compost, biocarbon, and other products. He has designed,
constructed, and operated organics facilities since 1989, and is a
Professional Civil Engineer and Certified Compost Facility Operator.
Aeron Jensan is Owner and Operator of Greenerzone, serving
commercial and residential accounts in solid waste management and
recycling since 2001. Customer service and proven effective recycling
systems have been a priority throughout his business and more
specifically his organic waste processing services.
Gib Dammann is an Associate Architect, owns Dammann Design. He
is CEO of Vashon Solar LLC, and President of Zero Waste Vashon
(ZWV). ZWV aims to create an educational multi-component organics
composting lab for its island community.
Distributed Bioenergy Solutions
Onsite systems typically serve small and medium sized facilities,
communities, and organizations with 50 – 50,000 people. They can save
resources in a number of powerful ways by saving: money for disposal,
energy, chemical inputs to the landscape, and costs for food
simultaneously.
• Elimination of hauling and disposal of foodwaste, foodservice paper,
landscape waste, and woodwaste.
• Creation of renewable energy onsite.
• Creation of new soil, fertilizer, and sequestered carbon for landscaping,
horticulture, and food crop production – at a local and community scale.
The Power of Onsite Systems
Food
Production
Energy
V. Fuel +
Heat +
Electricity
Conversion
A. Digestion +
Composting +
Gasification
Farm-to-Table Facts
• Urban farming and community gardening is blossoming in North
America.
– In Seattle, a population of 650,000 supports 88 community gardens,
31 acres of food production, and 6,000 active gardeners.
• Farm-to-table businesses, ‘slow-food’ projects, and 100-mile-diets are all
part of community supported agriculture.
– These programs are expanding in all states and provinces.
• Some operating precepts in the movement:
Food to renewable energy to soil to new food
Consumers (you) are making a choice to be an
active, proactive, and informed part of the food chain.
Benefits of Bioenergy
• Supply onsite building heat, hot water, lighting, electricity, and/or vehicle
fuel to the host facility and/or adjacent properties
• Managing organic waste on the property
–` (minimizing the export of waste materials)
• Connect with urban agriculture and renewables movements
– (minimizing the import of manufactured and processed food, provide
high-quality compost/fertilizer locally)
• Increase system diversity and reliability by deploying a local, distributed
renewable energy system
– (minimizing the import of energy and fuel)
• Build jobs and commerce within the community
– (strengthen the local economy while minimizing the export of dollars)
Model 185 – NAUTILUS
111,000 - 555,000 BTU/hr
1.4 MWh of electricity per day + 47 therms of heat per day
Model 185 – NAUTILUS
Model 185 – NAUTILUS
185 = 0.5 TPD 185-2 = 2.5 TPD
Model 25 – HORSE
High-solids Organic-waste Recycling System with Electrical output
15,000 BTU/hr
36 kWh per day + 1.2 therms heat per day