Cedar Grove Composting
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Transcript of Cedar Grove Composting
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Cedar Grove Cedar Grove CompostingComposting
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A bit of history…
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City of Seattle and King County Lead the Way!City of Seattle and King County Lead the Way!19891989City of Seattle, green wasteCity of Seattle, green wasteProjected tonnage: 12,000Projected tonnage: 12,000
Tonnage: Tonnage: 48,00048,000
19901990Tonnage: Tonnage: 100,000100,000Added King Co suburban citiesAdded King Co suburban citiesunincorporated King Counincorporated King Co
20072007Tonnage: Tonnage: 250,000250,000
Great job, Seattle and King County cities- Great job, Seattle and King County cities- Recycling works! Recycling works!
0
50,000
100,000
150,000
200,000
250,000
Tonnage
1 2 3
1989, 1990,2007
Growth Since 1989
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0
100000
200000
300000
400000
500000
Tonnage
1 2 3 4 5
1990-2012
Future Growth with Food Scraps and Other Organics
Cedar Grove has processed over 4 million tons diverted from landfilling since 1989!
150,000 tons annually food and commercial organics!
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Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide
YearYear ActionAction ResultResult
1989-1989-19951995
Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow
Volumes beyond Volumes beyond U.S. technologyU.S. technology
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Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide
YearYear ActionAction ResultResult
1989-1989-19951995
Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow
Volumes beyond Volumes beyond U.S. technologyU.S. technology
1996-1996-19991999
European model: European model: Added negative air, Added negative air, EMSEMS
Significant Significant improvementimprovement
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Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide
YearYear ActionAction ResultResult
1989-1989-19951995
Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow
Volumes beyond Volumes beyond U.S. technologyU.S. technology
1996-1996-19991999
European model: Added European model: Added negative air, EMSnegative air, EMS
Significant Significant improvementimprovement
2000-2000-20042004
Post-consumer Post-consumer food/commingled food/commingled yard/foodyard/food
In-vessel In-vessel system/Gore™ system/Gore™ Cover SystemCover System
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Technological Evolution of Composting in our Region Technological Evolution of Composting in our Region and Nationwideand Nationwide
YearYear ActionAction ResultResult
1989-1989-19951995
Initiated composting: Initiated composting: Static piles, windrowStatic piles, windrow
Volumes beyond Volumes beyond U.S. technologyU.S. technology
1996-1996-19991999
European model: Added European model: Added negative air, EMSnegative air, EMS
Significant Significant improvementimprovement
2000-2000-20042004
Post-consumer Post-consumer food/commingled food/commingled yard/foodyard/food
In-vessel In-vessel system/Gore™ system/Gore™ Cover SystemCover System
2004-2004-20082008
Everett build-outEverett build-out Increased capacity Increased capacity for regional growthfor regional growth
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199019972002
Today
-Everett-228,000 tons/year.-Maple Valley- 195,000 tons/year-Regional permitted capacity 423,000 tons/year.-Additional long-term capacity available
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MAKING COMPOST!
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Phase IMoisture: 60%Temp: 165 F
Time: 28 days
Phase IIMoisture: 55%Temp: 152 F
Time: 14 daysPhase III
Moisture: 50%Temp-150 F
Settles- 120 FTime: 14 days
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FINISHED COMPOST
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Cedar Grove Focus on Cedar Grove Focus on Education/Product Quality Education/Product Quality
Regulations and standardsRegulations and standards Uses of compost Uses of compost
Improve soil qualityImprove soil quality Conserve waterConserve water Reduce pesticides and Reduce pesticides and
fertilizer usagefertilizer usage Comprehensive standardsComprehensive standards
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Products-Landscape and GardeningProducts-Landscape and Gardening
WSDA registered WSDA registered organic materialorganic material
Increase plant size, Increase plant size, remove C02 from airremove C02 from air
Sequester carbon, return Sequester carbon, return to soilto soil
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For almost 20 years…For almost 20 years… Processed :Processed :4 million tons4 million tons of of
organic organic Created: Created: 3.2 million yards3.2 million yards
that were successfully that were successfully distributed back out into distributed back out into environmentenvironment
Equivalent in volume to Equivalent in volume to 87 87 million bagsmillion bags
Current- Current- 750,000 bags750,000 bags and and 250,000 bulk yards 250,000 bulk yards per per yearyear
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Compost in the CommunityCompost in the Community Post construction BMPsPost construction BMPs
-WDOE BMP in state SW manual-WDOE BMP in state SW manual Compliance within next Compliance within next
2 years2 years Educating ContractorsEducating Contractors
CG is KC Link-Up CG is KC Link-Up PartnerPartner
Two for oneTwo for one Erosion Erosion Post-constructionPost-construction
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CESCL Training CESCL Training at Maple Valleyat Maple Valley
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Residential ProgramsResidential Programs Our technology allowed Our technology allowed
residents to commingle residents to commingle yard + food/organics in yard + food/organics in 20042004
No additional collection No additional collection vehicles, helping the vehicles, helping the cities control costs while cities control costs while adding more diversionadding more diversion
Collaborate with KC and Collaborate with KC and City of Seattle to educate City of Seattle to educate consumers and increase consumers and increase participationparticipation
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COMMERCIAL COLLECTIONCOMMERCIAL COLLECTION
Cedar Grove Organics Cedar Grove Organics Collection ServiceCollection Service- - Help meet city and Help meet city and county diversion goals county diversion goals -Initiated to assist -Initiated to assist commercial customers commercial customers in expediting their in expediting their organics recycling organics recycling programs programs
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Successful Commercial Successful Commercial Organics Recycling Programs Organics Recycling Programs
TO DO:
Site assessment
Proposal
Training
Containers
Collection
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Growth in Cedar Grove’s Growth in Cedar Grove’s Commercial Organics CollectionCommercial Organics Collection
16000
37000
0
10000
20000
30000
40000
Tons/Year
Tonnage
2006-2008
Commercial Tonnage GrowthGreen Scene partners include grocery chains, restaurants, hospitals, schools and universities, coffee house chains and stadiums.
www.gogreenscene.com
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Home Depot and Cedar GroveHome Depot and Cedar GroveA Successful CollaborationA Successful Collaboration
Collection of organics at Collection of organics at 3 King County stores; 3 King County stores; added 9 more stores added 9 more stores after initial pilotafter initial pilot
Normally landfilled Normally landfilled wood and plant wastewood and plant waste
Backhaul bags already Backhaul bags already coming to stores on coming to stores on dedicated semi trucksdedicated semi trucks
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Home Depot Program HighlightsHome Depot Program Highlights
2007 2007 800 tons (8 mos.)800 tons (8 mos.)2008 (projected)2008 (projected) 4000 tons (12 mos.)4000 tons (12 mos.)
- Landfill diversion - Landfill diversion - Less fuel through - Less fuel through
backhaulbackhaul
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Mackay Mackay RestaurantsRestaurants
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Executive Chef Steve Cain Executive Chef Steve Cain
Cost savingsCost savings Educating employeesEducating employees Easy transitionEasy transition 300 tons since inception300 tons since inception
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Example of Example of PASS PASS ItemsItems
Corn Cup
Corn Clamshell
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Didn’t Pass Didn’t Pass ItemsItems
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.93 metric tons .93 metric tons of COof CO22e are avoidede are avoided
For each ton of organic waste composted at Cedar Grove Composting…
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We contributed to eliminating 299,008 We contributed to eliminating 299,008 metric tons of COmetric tons of CO22equivalent into the equivalent into the atmosphere, or the annual amount atmosphere, or the annual amount produced by…produced by…
40,000 American households40,000 American households -or--or-54,000 American drivers54,000 American drivers
What’s the impact?What’s the impact?
* All figures are rounded
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Cedar Grove in the CommunityCedar Grove in the Community
Seattle Tilth
Seattle Seattle Youth GardenYouth Garden
WorksWorks Seattle Public Schools
King County school gardens
Neighborhood Pea Patches
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The FutureThe Future
-Development of property (100 acres)-Alternate energy from biomass-Anaerobic digestion of food scraps to energy-Recycling campus for new technologies
The Future
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SUSTAINABLE
RENEWABLE