Municipal Solid Waste Characteristics

Transcription

1 CITY OF LETHBRIDGE Municipal Solid Waste Characteristics Juliane Ruck, the City of Lethbridge and Xiaomei Li, Alberta Innovates Energy and Environmental Solutions SWANA Northern Lights 2015 Conference Measuring Success

2 LETHBRIDGE 2

3 HISTORY s 1990 s 1980 s 2013

4 % Residential Waste Diversion Rate 20.00% 15.00% 10.00% 5.00% 0.00%

5 DO WEHAVEWHATITTAKES? 5 Residential Commercial Multi Family

6 6 PROGRAM OBJECTIVES Are customers compliant with waste by law Is our education effective? What goes into the bin?

7 PROGRAM PILOT 7

8 PROGRAM PILOT 8

9 PROGRAM PILOT 9 Arrgh

10 PROGRAM EVOLUTION 10

11 COMPLIANCE WITH WASTE BY LAW 11

12 COMPLIANCE WITH WASTE BY LAW 12

13 COMPLIANCE WITH WASTE BY LAW 13

14 14 COMPLIANCE WITH WASTE BY LAW

15 EFFECTIVENESS OF EDUCATION 15

16 EFFECTIVENESS OF EDUCATION 16

17 EFFECTIVENESS OF EDUCATION 17

18 18 EFFECTIVENESS OF EDUCATION

19 RESIDENTIAL GARBAGE COMPOSITION Tonnes of Waste average Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1.9% March 0.5% 2.9% 1.8% June 0.7% 2.4% October 4.7% 1.3% 0.4% 35.8% 26.9% 32.0% % 22.8% 20.8% % 22.0% 17.2% 3

20 RESIDENTIAL GARBAGE COMPOSITION % 1.89% 2.8% 25.5% 47.4% 21.6%

21 21 COMMERCIAL GARBAGE COMPOSITION Ice Rink and School Major Chain Grocery Store Health Care and Social Housing

22 22 COMMERCIAL GARBAGE COMPOSITION Industrial Construction Retail Office Institutional Healthcare & Social Assistance Accommodation & Food Other

23 COMMERCIAL GARBAGE COMPOSITION Health & Social Services Institutional 2.6% 2.0% 1.4% 28.7% 28.0% Office 0.7% 1.4% 0.5% 2.6% 1.8% 8.4% 24.1% 8,400t 31.8% 24.8% 31.1% 8,800t 6,000t % 34.0% 29.3% Food & Accommodation 1.9% 1.1% 0.9% Other 2.5% 1.7% Retail 1.7% 7.2% 48.9% 11.9% 37.1% 15.7% 14.5% 32.8% 32.4% 10,800t 5,000t 11.3% 14,000t 29.6% 18.0% 27.1%

24 COMMERCIAL GARBAGE COMPOSITION 24 Waste Categories Audit ICI % 6.3% Total Recycables 7.2% 31.3% Total Residuals Total Organics 28.1% Total Construction and Demolition Materials Total Special Care Wastes 24.4% Total Uncategorized Wastes

25 HOW TO DO AN AUDIT? Sample size and sample weight 25 Standard Deviasion 4.0% 3.5% 3.0% 2.5% 2.0% 1.5% 1.0% 0.5% 4 samples at ~100 kg each 9 10 samples at ~100 kg each Organics Papers Bulk items Glass 0.0% Sample Smaple Weight (kg)

26 RECOMMENDATIONS 26 Staff

27 27 SUMMARY Waste audit data will help you to understand what you are dealing with in your waste Waste audits are easy and cost effectively to do internally (~$300/ sample) 10 samples at 100 kg per audit are sufficient 3 4 audits per year to account for seasonal variability Do audits every 2 3 years if no significant program changes occurred City of Lethbridge has good data

28 SOURCES White Paper CCME Recommended Waste Characterization Methodology, 1999 Ontario Ministry of Environment Procedures for the Assessment of Solid Waste Residential and Commercial, Volume III of the Ontario Waste Composition Study, July; Provincial Waste Characterization Framework, Alberta, October 2005 California Integrated Waste Management Board CIWMB Uniform Waste Disposal Characterization Method. 28 Juliane Ruck, P.Eng. Waste and Recycling Engineer City of Lethbridge