Unit 11 Solid Waste Disposal of solid waste

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Unit 11 Solid Waste Disposal of solid waste not defined as hazardous Ted Feitshans

Unit 11 Solid Waste Disposal of solid waste not defined as hazardous Ted Feitshans ARE 309 011 -1

Where does your trash go? • What happens after you drop waste in the

Where does your trash go? • What happens after you drop waste in the trash basket? • Why do we have trash? – What is a joint product? • Is trash a new problem? Ted Feitshans ARE 309 011 -2

Traditional Waste Disposal Methods • Drop it and forget it. • The midden heap

Traditional Waste Disposal Methods • Drop it and forget it. • The midden heap – Public health? • Open burning • Open dumping Ted Feitshans ARE 309 011 -3

One man’s trash is another man’s treasure. . . • Recycling – Is it

One man’s trash is another man’s treasure. . . • Recycling – Is it a new idea? – Why not recycle all solid waste? – Creating markets for recycled materials. • Research • Laws mandating use Ted Feitshans ARE 309 011 -4

Source Reduction • Definition – Sawmill example • Advantages • Why won’t it work

Source Reduction • Definition – Sawmill example • Advantages • Why won’t it work for all waste? Ted Feitshans ARE 309 011 -5

Incineration • • Incomplete burning Heavy metals Ash Energy recovery Ted Feitshans ARE 309

Incineration • • Incomplete burning Heavy metals Ash Energy recovery Ted Feitshans ARE 309 011 -6

Sanitary Landfill • • • Above ground level Below ground level Leachate Methane Subsequent

Sanitary Landfill • • • Above ground level Below ground level Leachate Methane Subsequent land uses Slow degradation of materials Ted Feitshans ARE 309 011 -7

Lined & Capped (Modern) Sanitary Landfill • All materials contained • Almost no degradation

Lined & Capped (Modern) Sanitary Landfill • All materials contained • Almost no degradation • Leachate/hazardous waste Ted Feitshans ARE 309 011 -8

Injection • Geologically stable sites • Limited types of waste Ted Feitshans ARE 309

Injection • Geologically stable sites • Limited types of waste Ted Feitshans ARE 309 011 -9

Lanfilling vs. Incineration • • Economics Do we avoid all landfilling? Air pollution Energy

Lanfilling vs. Incineration • • Economics Do we avoid all landfilling? Air pollution Energy recovery Ted Feitshans ARE 309 011 -10

Solid Waste Disposal Act (SWDA) • Epa’S goals: – Increase source reduction & recycling

Solid Waste Disposal Act (SWDA) • Epa’S goals: – Increase source reduction & recycling – Increase disposal capacity & secondary markets – Improve safety of solid waste management facilities Ted Feitshans ARE 309 011 -11

Source reduction • More efficient processes • Reduced packaging • Separation of yard &

Source reduction • More efficient processes • Reduced packaging • Separation of yard & construction waste, tires from stream • Why have net discards increased? Ted Feitshans ARE 309 011 -12

Recycling • Mandated separation • Creation of new markets • Changes in manufacturing Ted

Recycling • Mandated separation • Creation of new markets • Changes in manufacturing Ted Feitshans ARE 309 011 -13

Flow control • Unintended consequences of increasing capacity • Financial needs of communities •

Flow control • Unintended consequences of increasing capacity • Financial needs of communities • Constitutionality Ted Feitshans ARE 309 011 -14