Transcript Chapter 29 Waste Management Botkin and Keller Environmental Science 5e

Chapter 29
Waste Management
Botkin and Keller
Environmental Science 5e
Modern Trends
• Industrial Ecology
– The study of relationships among industrial
systems and their links to natural systems
Botkin and Keller
Environmental Science 5e
Integrated Waste Management
• Includes:
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Reduce, reuse, recycle
Composting
Landfill
Incineration
Botkin and Keller
Environmental Science 5e
Materials Management
• A visionary goal requiring more sustainable use of
materials combined with resource conservation
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Eliminate subsides for extraction of virgin materials
Establish “green building” incentives
Assess financial penalties
Provide financial incentives
Increase new jobs
Botkin and Keller
Environmental Science 5e
Solid-Waste Management
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Composition
On-Site Disposal
Composting
Incineration
Open Dumps
Sanitary Landfills
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Sanitary Landfills
• Are designed to concentrate and contain
refuse without creating a hazard to public
health or safety
• Considerations:
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Leachate is produced
Site Selection: Environmental justice
Monitoring Pollution
Federal Legislation
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Hazardous Waste
• Waste that is classified as definitely or
potentially hazardous to the health of people
• Serious environmental problems
• Uncontrolled disposal sites could cause
serious health problems
• Need to develop safe disposal methods
Botkin and Keller
Environmental Science 5e
Hazardous Waste Legislation
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Resource Conservation and Recovery Act
CERCLA
Environmental Audit
Secure Landfill
Land Application
Surface Impoundment
Deep-Well Disposal
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Alternatives to Hazardous Waste
• Source reduction, Recycling and resources
recovery, Treatment, Incineration
• Advantages
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Chemicals can be reused
Less toxic = less problems
Smaller volume of waste
Less stress of waste disposal sites
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Ocean Dumping
• Types of Waste
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Dredge spoils
Industrial wastes
Sewage sludge
Construction debris
Solid waste
• The most seriously affected areas are near shore
Botkin and Keller
Environmental Science 5e
Botkin and Keller
Environmental Science 5e
Pollution Prevention
• Identifying ways to prevent the generation
of waste, rather than finding ways to
dispose of it
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Correct purchasing amounts
Better control of materials
Substituting non-toxic chemicals
Improving engineering
Botkin and Keller
Environmental Science 5e