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Water Pollution. G. Tyler Miller’s Living in the Environment 13 th Edition Chapter 19. Dr. Richard Clements Chattanooga State Technical Community College Modified by Charlotte Kirkpatrick. Key Concepts. Types, sources, and effects of water pollutants.

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water pollution
Water Pollution

G. Tyler Miller’s

Living in the Environment

13th Edition

Chapter 19

Dr. Richard Clements

Chattanooga State Technical Community College

Modified by Charlotte Kirkpatrick

key concepts
Key Concepts
  • Types, sources, and effects of water pollutants
  • Major pollution problems of surface water
  • Major pollution problems of groundwater
  • Reduction and prevention of water pollution
  • Drinking water quality
types and sources of water pollution
Types and Sources of Water Pollution

Fig. 19-3 p. 485

  • Point sources

Refer to Tables 19-1 and 19-2 p. 484 and 485

  • Nonpoint sources
  • Biological oxygen demand
  • Water quality
point and nonpoint sources
Point and Nonpoint Sources

NONPOINT SOURCES

Rural homes

Cropland

Urban streets

Animal feedlot

POINT SOURCES

Suburban development

Factory

Wastewater treatment plant

Fig. 19-4

p. 486

pollution of streams
Pollution of Streams
  • Oxygen sag curve
  • Factors influencing recovery

Fig. 19-5 p. 488

pollution of lakes
Pollution of Lakes

Fig. 19-7 p. 491

  • Eutrophication
  • Slow turnover
  • Thermal stratification
pollution of lakes1
Pollution of Lakes

Fig. 19-7 p. 491

groundwater pollution sources
Groundwater Pollution: Sources
  • Cold temperatures
  • Low flow rates
  • Few bacteria

Hazardous waste injection well

Pesticides

Coal strip mine runoff

De-icing road salt

Buried gasoline and solvent tank

Cesspool septic tank

Pumping well

Gasoline station

Waste lagoon

Water pumping well

Sewer

Landfill

Leakage from faulty casing

Accidental spills

Discharge

Unconfined freshwater aquifer

Confined aquifer

Fig. 19-10 p. 494

Confined freshwater aquifer

Groundwater flow

groundwater pollution prevention
Groundwater Pollution Prevention
  • Monitoring aquifers
  • Leak detection systems
  • Strictly regulating hazardous waste disposal
  • Storing hazardous materials above ground
ocean pollution
Ocean Pollution

Fig. 19-12 p. 498

case study chesapeake bay
Case Study: Chesapeake Bay

Fig. 19-14 p. 500

  • Largest US estuary
  • Relatively shallow
  • Slow “flushing” action to Atlantic
  • Major problems with dissolved O2
oil spills
Oil Spills
  • Sources: offshore wells, tankers, pipelines and storage tanks
  • Effects: death of organisms, loss of animal insulation and buoyancy, smothering
  • Significant economic impacts
  • Mechanical cleanup methods: skimmers and blotters
  • Chemical cleanup methods: coagulants and dispersing agents
solutions preventing and reducing surface water pollution
Solutions: Preventing and Reducing Surface Water Pollution

Nonpoint Sources

Point Sources

  • Reduce runoff
  • Clean Water Act
  • Buffer zone vegetation
  • Water Quality Act
  • Reduce soil erosion
technological approach septic systems
Technological Approach: Septic Systems
  • Require suitable soils and maintenance

Fig. 19-16 p. 504

technological approach sewage treatment primary and secondary
Technological Approach: Sewage Treatment: Primary and Secondary
  • Mechanical and biological treatment

Fig. 19-17p. 504

technological approach advanced sewage treatment
Technological Approach: Advanced Sewage Treatment
  • Removes specific pollutants

Fig. 19-18p. 505

drinking water quality
Drinking Water Quality

Fig. 19-11 p. 495

  • Bottled water
  • Safe Drinking Water Act
  • Maximum contaminant levels
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