Getting to 50% and Beyond: Waste Diversion Success Stories from Canadian Municipalities

Transcription

1 Getting to 50% and Beyond: Waste Diversion Success Stories from Canadian Municipalities Geoff Rathbone, General Manager Solid Waste Management Services City of Toronto February 10, 2010

2 Garbage is changing 2

3 City of Toronto Waste Statistics Serve over 1 million units 500,000 single family homes 510,000 multi-unit unit homes 20,000 small commercial 10,000 litter/recycle bins Over 1,000 Special Events per year City Agencies, Boards, Commissions & Divisions Private commercial and industrial waste accepted at transfer stations 3

4 Target 70 Plan 2008 overall diversion rate 44% 59% single unit residential 15% multi-unit unit residential 43% ABCD/Public Space 70% target = 200,000 new tonnes of diversion Target 70 Plan Integrated approach Source reduction Reuse Recycle and compost Treat mixed waste prior to landfill 4

5 Rate Based Solid Waste Utility Remove cost of solid waste from property tax Rebate current costs to residential customers Implement volume-based solid waste rate structure Bill directly through new joint Utility Bill (Water/Solid Waste Bill) Rate supports existing services and new diversion initiatives Generate additional $54 million/year to achieve 70% goal 50% operating, 50% capital 5

6 Volume-based Rate System Waste Collection Reduced to Every Two Weeks 6

7 Getting from 44% to 70% diversion goal... Source Separation Initiative (Diversion Gain) 1. Source Reduction Initiatives (10,000 t / +1.2%) 2. Green Bin Organics in Apartments/Condos (30,000 t / +3.5%) 3. Enforcement Mandatory Diversion By-law (10,000 t / +1.2%) 4. Behavioural Change (43,000 t / +5.0%) 5. New Materials for Recycling (6,000 t / + 0.7%) 6. Improved Recycling Capacity (15,000 t / +1.7%) 7. Reuse/Disassembly of Durable Goods for Recycling (44,000 t / +5.1%) 8. Townhouse Collection (16,000 t / +1.9%) Mixed Waste Processing Biological/Physical Processing of Mixed Waste (75,000 t / +8.0%) 7

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9 Green Bin Program Materials List Green Bin Made Easy... Line your indoor container with a plastic bag if you wish 9

10 Green Bin Organic Composition Product Approximately food and pet waste 70% diapers and sanitary 10-15% 15% tissues + towels 10% paper based packaging 5-10% Quantity Single family Multi-family 250kg/hh/yr 75 kg/unit/yr 10

11 Green Bin Organics Feedstock 11

12 Green Bin Processing Facility Stage 1: Front end removal of gross contamination and bags Stage 2: Anaerobic (no oxygen) digestion of wastes Stage 3: Screw press digestate to solid form Stage 4: Final finishing at windrow site with leaf and yard waste 12

13 Proposed 90,000 tpy Biogas Facility at Disco Transfer Station 13

14 Biogas Production Biogas 60% CH M m 3 /yr Refine to Pipeline Natural Gas Quality - 7.8M m 3 /yr- - Fuel entire Solid Waste fleet of 285 trucks - 13,000 tonnes/yr GHG reductions 14

15 Digestate Ready for Aerobic Windrows 15

16 Key Success Factors The 3 B s B Bins Provision of kitchen and Green Bins Bags Allow use of regular plastic liner Bi-weekly Weekly organics/bi-weekly waste 16

17 Mixed Waste Processing Technology 75,000 tonnes/yr diversion from landfill Approximately 8% of overall 70% diversion strategy Approximately 150,000 tonnes inbound feedstock Possibility of scaling facility to manage additional wastes Request for Proposal will include options for additional processing capacity Potential facility outputs Class B compost Ministry of the Environment (MOE) response considering diversion pending 17

18 Mechanical Biological Processing Inputs/Outputs Input 150,000 tonnes/yr residual waste Outputs Diversions: 5,000 tonnes recyclables 60,000 tonnes Class B compost 10,000 tonnes biogas/moisture loss Residual Waste: 75,000 tonnes process residues to landfill 150,000 tonnes outputs 18

19 MBT Anaerobic Mixed Waste Processing Facility 19

20 Blue Bin Program Materials List 20

21 Fully Automated Truck 21

22 Semi-automated Side Loader 22

23 Data Management All bins/apartment containers to be equipped with RFID Identifiers Management of billing system Feedback to residents System management tool Potential for reward program 23

24 Information Management 24

25 Volume Based Billing with RFID 25

26 Garbage is Rocket Science 26

27 Top 10 Packaging Challenges for Recycling 1. Multiple resins (PS, PP, PET) used for plastic clamshells 2. Flyers & magazines in sealed plastic 3. Waxed cardboard 4. Biodegradable/compostable plastic packaging 5. Any non-hdpe plastic bottle/wrap (PVC, PS, PP) 6. Paper stickers on plastic film 7. Water bottle/soft drink flats corrugated/film 8. Hot/cold drink cups paperboard body/ps lid 9. Oversized 20 litre water bottles 10. Plastic pouches 27

28 Clear Long Term Plan Timelines/milestones Financial estimates Quantified diversion Key Success Factors Utility Approach Volume based waste rate Free, unlimited diversion Make waste difficult and expensive Convenience Curbside service model All necessary tools included through fees Supply Driven Market Development Municipality signals desired new material MRF/end market capitalizes based on committed supply Municipality adds new material 28