Alternative Waste Disposal Technologies Presentation

SWRAC Meeting May 28, 2015

Philadelphia MSW Generation by Sector

Residential624,287

25%

Commercial1,535,859

60%

C&D391,551

15%

2013 Data

Philadelphia MSW Management

Recycled1,213,769

48%

Waste to Energy641,668

25%

Landfilled674,779

27%

Exceeding Greenworks Goal of 70% Diversion from Landfill

2013 Data

Alternative Waste Disposal Technologies • MSW Feedstock (SSOW, Mixed Waste, MRF Residuals)

• Presentation

• Waste Management SpecFuelTM

• Anaerobic Digestion

• Gasification

• Enzymatic Hydrolysis

Streets Department RFP for Disposal

Capacity in 2011

Allowed for Consideration of Alternative Waste Disposal

Technologies

Waste Management

SpecFUELTM

Feedstock Collection / Receiving

Pre-Processing

Metals

Organics

Plastic (PVC) Inert Materials

Fuel Product (Paper, Plastic)

Anaerobic Digestion

Feedstock Collection / Receiving

Pre-Processing Digester

Composting

Biogas Conditioning

Micro-Turbine/ Engine/

Fuel Cell/ Boiler

Residue

Residue

Electricity

Biogas Upgrade

CO2

CNG/ Pipeline Gas

Compost Product

Recyclables

Anaerobic Digestion

•Production of Renewable Electricity or Fuels

•Biological Process – Environmental Attributes

•Potential for Integration with Wastewater Treatment

•Lower Energy Recovery

•Diversion Potential Depends on Market for Compost Product

Gasification

Feedstock Collection / Receiving

Pre-Processing

Gasifier

Syngas Conditioning/

Upgrade

Engine/ Fuel Cell/

Boiler/ Gas Turbine/

Combined Cycle

Recyclables Residue

Molten Metal

Vitrified Slag/ Ash Residue/ Char

Syngas H2 / CO

Electricity

Fuels/ Chemicals

Gasification

•High Energy Recovery

•Production of Electricity, Fuels, Chemicals

•Diversion Potential Depends on Market for Vitrified Slag, Ash Residue, or Char Product

•Established Overseas, not yet in U.S.

Integrated Approach

(Anaerobic Digestion/ Gasification)

Feedstock Collection / Receiving

Pre-Processing Gasification

Anaerobic Digestion

Wet (Organic) Fraction

Dry Fraction

Recyclables

Enzymatic Hydrolysis

Feedstock Collection / Receiving

Pre-Processing Enzymatic Digestion/

Fermentation

Organics

Recyclables Residue

Ethanol

Digestate, Fiber

Enzymatic Hydrolysis

•Early Development Phase

•Production of Renewable Fuels

•Biological Process – Environmental Attributes

•Markets for Fiber Product

Selected Alternative Technology Projects

Edmonton, Alberta

Blairstown, IA

Tulsa, OK

San Jose, CA

Perris, CA

Santa Barbara, CA

Lake Buena Vista, FL

Madison, PA