San Francisco s Food Composting Program

Transcription

1 San Francisco s Food Composting Program Alexa Kielty Department of the Environment City and County of San Francisco alexa.kielty@sfgov.org Mid-Atlantic Organics Summit November 30, 2006

2 San Francisco Background Population: 777,000 & 1.3 million daytime Multilingual and multicultural: 40% don t speak English at home 330,000 households 7000 food establishments 2 exclusively permitted haulers Variable rates charged for garbage collection via City rate approval process Total waste diversion is 67%

3 California Recycling Laws 1989 AB939 law mandated 50% waste diversion from landfill by 2000 Source reduction, reuse, recycling and composting, and biomass transformation (burn) stated hierarchy over landfill 1992 AB 2020 Bottle Bill requires deposit on all beverage containers, encouraging scavenging for buy back and funds programs 2004 SB 20 E-Waste Bill requires deposit on all electronic monitors to help fund collection and recycling programs

4 San Francisco s Waste Diversion Goals & Zero Waste Policy 75% Landfill Diversion by 2010 Zero Waste to landfill or incineration by 2020 Highest and Best Use of Materials Consumer and Producer Responsibility (EPR)

5 SF Total Waste Generation San Francisco Waste Disposal Tonnage 2,000,000 1,800,000 1,600,000 1,400,000 1,200,000 1,000, , , , ,000 0 Landfilled Recycled Total Generation Year Brown Vence and Associates Waste Diversion Study, 2004

6 Fantastic 3 Collection Program

7 Easy to Understand Residential Brochure

8 Designed For Easy Participation Labeled Lids Now using more Color Coded picture graphics Wheeled Cart Kitchen Pail for Safety and Convenience

9 Compostable Bags are Available

10 Side Loading Single Chamber Compactor

11 Side Loading Hopper Good For Monitoring And Quality Control Love Note feedback to stop contamination

12 Businesses Can be serviced daily

13 Other Commercial Composting Collection Systems

14 Management Support, Incentives, & Multilingual Staff Training Critical

15 Multi-lingual And Photo Image Poster Used for Training and Bin Signage

16 Green Bin Set-up For Work Station Sorting

17 Options for Cleaning Containers

18 Compostable Bags & Food Service Ware to Reduce Cleaning and Contamination

19 Using Bag Liners Can Help Participation

20 Working Creativity with Space Constraints

21 50% - 75% Diversion

22 Convention Hotels & Ball Park Divert 50%+ Recycling and Composting

23 Special Events can divert up to 75%

24 Compostable Service Ware & Food Scraps

25 Composting in Office Building Improves Paper Recycling

26 Wax Cardboard into Compost

27 Composting at Schools

28 Organics Top Loaded Into Vehicles for 60 miles Haul to Compost Facility

29 Norcal s Jepsen Prairie Organics Regional Composting Facility

30 Receiving & Sorting Out Contaminants From Food Rich Compostable Feedstock

31 Need for Labeling Compostable PLA cups & Products Made from Corn

32 Grinding Feedstock for Composting

33 Feedstock Ram-fed Into 200 Foot Long HDPE Ag-Bags

34 Bags Aerated For 30 Days With Timed Blowers And Perforated Pipes

35 High Temperatures Meet Pathogen Kill (PFRP) Requirements

36 Bags Opened and Material Turned In Open Windrows For 30 Days

37 Compost Screened To 3/8 or ¼ Inch

38 Custom Blending For Specific Markets and Organic Certified

39 Compost Used On Organic Farms And Vineyards To Build Healthy Soils

40 Organic Produce Grown with Compost Sent to San Francisco

41 Closing The Loop - Food Composting Sustains Healthy Soils To Grow Organic Food That Returns To Feed The City

42 Lessons Learned-Financial Incentives For service providers such as a higher rate of company profit for a higher diversion rate. For waste generators An incentive example is a discounted rate for participating in composting.

43 Why a Municipal Composting Program? Reduces carbon emissions. Creates a marketable products from waste stream. Creates growing medium for local agriculture. Displaces petroleum based fertilizers. Avoids landfilling. Can save $ and emissions on transportation. Anaerobic digestion is the next step for SF, to produce energy, We d like to diversify our organics markets

44 Materials Still Landilled Recyclable Paper 20% Food Scraps 27% Bottles & Cans 5% Construction & Demolition Debris 15% Yard Trimmings 2% Compostable Paper 6% Other 25%

45 Thank You for inviting me to your Organics Summit! Jack Macy San Francisco Department of the Environment