1. WASTE TO ENERGY Waste Management Guideline Document # DZF.SMS.305 Waste Guide

2. What is Waste to Energy? Waste Sorting Guide Other Waste Guide Tips for Specific Operational Areas Tips for Specific Operational Areas Guest Waste Sorting Table of Contents Waste Management Guide Document # DZF.SMS.305 Waste Guide

3. What is Waste-to-Energy? not burning waste!! Thermal breakdown to to generate … Thermal breakdown to to generate … Syngas Thermal conversion of “trash” into combustible gas (hydrogen, carbon monoxide and methane) by exposing it to high temperatures and a controlled oxygen environment. Document # DZF.SMS.305 Waste Guide

4. What is Waste-to-Energy? Zoo Waste Waste-to-Energy System pellets Generator Supplements TEP Boilers, providing hot water to buildings & pools (reducing natural gas use) Heat Provide electricity for TEP Electricity syngas Transfer of heat General Process Flow Diagram Document # DZF.SMS.305 Waste Guide

5. Where is Waste-to-Energy? RIGHT HERE Document # DZF.SMS.305 Waste Guide

6. Waste Sorting Guide The next set of slide will provide overview on how Denver Zoo staff, volunteers and guests should be sorting waste. Document # DZF.SMS.305 Waste Guide

7. Why this is IMPORTANT!! Zoo staff, volunteers, and guests are our first and last line of defense for sorting waste. There are no magic sorting elves behind the scenes. Waste to Energy is only successful with your help! Document # DZF.SMS.305 Waste Guide

8. Gasification Fuel = Green containers, clear bags/liners, blue or brown dumpsters, other containers with gasification fuel signs Includes: Animal waste Food waste Paper Plastics #1-2 and #4-7 Cardboard Wax paper, cellophane Clean cotton fabric any item NOT listed under non-fuel.. Dibs on the Taco Bits! Document # DZF.SMS.305 Waste Guide

9. Non Fuel = Black containers, black liners Includes: Tin cans, aluminum cans Glass bottles Foil Foil lined items (bags, candy wrappers, juice containers) Bleach/HPC and other empty cleaning chemical bottles Please note: any metals smaller than a pinky nail (staple) can be placed in “fuel” bin. Document # DZF.SMS.305 Waste Guide

10. Unknown Waste = Grey containers, grey liners Includes: Unknown plastics Items with metal/glass Other non-fuel materials Please attach a note to item placed in unknown container with: Name Department So we can contact you for disposal instructions Document # DZF.SMS.305 Waste Guide

11. The following slides outline how to properly dispose of waste that may have a specific regulatory requirement, or cannot be processed in the waste to energy system. Other Waste Guide Document # DZF.SMS.305 Waste Guide

12. Batteries Non-alkaline batteries Place in yellow flip-top bin in Operations Break-room Alkaline batteries Place in labeled milk jug Call Sustainability Coordinator when full Lead Acid batteries Contact Maintenance Department Please contact Safety and Sustainability Department with questions. Document # DZF.SMS.305 Waste Guide

13. Electronic Waste Wire Broken power tools Motors/drives (no oil) Circuit boards or control panels Used compact discs Microwaves Small appliances Any DZF computer equipment contact IT Help Desk Call Safety and Sustainability Department for assistance. Contact HVAC for refrigeration based appliances. Metech Recycling Bin: located on west side of Old Monks in Operations Document # DZF.SMS.305 Waste Guide

14. Hazardous Materials Used Shop Rags Hazardous (paint thinner or gasoline soaked rags) Used Compact Fluorescent Bulbs Used Waste Paint Hazardous (only oil based paints with mixed thinner) Used Aerosol Cans Used Batteries Used Mercury Vapor Bulbs Used Mercury Containing Devices Used Ballasts Non-PCB Used Ballasts PCB Used Oil Used Oil with Refrigerant Used Oil Filters Hazardous Materials Disposal Area: located on north side of Old Monks in Operations Contact Safety and Sustainability Department for any spent/used chemicals. Document # DZF.SMS.305 Waste Guide

15. Irritant Sprays Examples include: Bear spray Mace Pepper spray Bin is located in Operations Break Room next to east exit door. Document # DZF.SMS.305 Waste Guide

16. Landfill Concrete Rocks Dirt Insulation Styrofoam Oversized items Construction waste PVC pipe, or other large volume PVC materials Please contact Grounds Department for questions regarding landfill items or special project needs. By Gate 15 & Waste Management Building North side of Old Monks NO OVERSIZED ITEMS! Document # DZF.SMS.305 Waste Guide

17. Medical Waste Sharps, Needles Expired prescriptions, pharmaceuticals Animal tissue, fluids, etc. Waste formalin Other Veterinary Medicine related chemicals Please contact Veterinary Medicine Department for containers and disposal of all items listed above. Document # DZF.SMS.305 Waste Guide

18. Metal Recycling Metal Recycling Bin Oversized metal items Scrap metal All other metal except aluminum cans, tin cans Please contact Grounds Department for questions regarding metal recycling. Document # DZF.SMS.305 Waste Guide

19. The following slides provide tips specific operational areas. Waste Guide by Operational Areas Document # DZF.SMS.305 Waste Guide

20. Office Locations Staff will be responsible for sorting and removing trash daily from any personal trash receptacles located at desks. Sorted materials need to be disposed within the bin system pictured above. This three bin system will be set up in centralized locations within all office buildings. Waste from these bins will be picked up daily, when full. Document # DZF.SMS.305 Waste Guide

21. Animal Department Gasification Fuel food waste, animal waste, paper, organic materials Landfill Hoses, heavy rubber mats, concrete, rocks, sand, oversized items, glass panels, styrofoam, PVC, etc. Recycling Glass, cans, foils, empty cleaner bottles (bleach, HPC, window, etc.) Metal Oversized metal Scrap metal Contact Safety and Sustainability for disposal of used or old chemicals.

22. Facilities Department Gasification Fuel paper, organic materials, food waste, plastics #1-2 and #4-7, small wood waste Landfill Construction waste (if not recyclable), oversized items, concrete, dried paint, PVC, sheet rock Recycling Glass, cans, foils, some empty chemical bottles (some exceptions) Metal Oversized metal Scrap metal Clean/empty paint cans Contact Safety and Sustainability for disposal of used or old chemicals.

23. Events For large zoo events, please refer to the Facilities Department guide for waste sorting.Facilities Department guide Prior to any large event, please contact the Waste to Energy Staff member to discuss a waste disposal plan. Suggested practices include: Contract language outlining waste to energy guidelines Only compostable service ware (dishes, flatware, cups, etc.) to be used on zoo grounds All metals and glass will be recycled in proper receptacle Cardboard needs to be broken down and segregated from other recyclables Any handouts to guests need to meet waste to energy guidelines For events such as Boo at the Zoo (or similar types of events), special consideration needs to be made for waste generated during this event due to foil candy wrappers. Document # DZF.SMS.305 Waste Guide

24. Guest Waste

25. Guest Waste Animal waste Food waste Paper Plastics #1-2 and #4-7 Cardboard Wax paper, cellophane Diapers Clean cotton fabric any item NOT listed under non-fuel. Tin cans aluminum cans Glass bottles Foil Foil lined items (bags, candy wrappers, juice containers) Any alkaline or rechargeable batteries can be dropped off at Guest Services or a KM Retail Location (gift shop) Document # DZF.SMS.305 Waste Guide

26. Final Thoughts Waste-to-Energy will only be successful with your help! Please contact us with questions/concerns/suggestions. All this information is incorporated into the SMS and will be available on Zoonet. Contact Safety and Sustainability Department if you have a disposal item that is not addressed in this guide. Document # DZF.SMS.305 Waste Guide

27. Date: February 18, 2015 Version: 1.0 Document Owner: Safety and Sustainability Department UNCONTROLLED WHEN PRINTED Thank you!