Water Pollution - Western Oregon Universitywou.edu/~guralnl/370Water Pollution.pdf · discharged...
Transcript of Water Pollution - Western Oregon Universitywou.edu/~guralnl/370Water Pollution.pdf · discharged...
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Water Pollution
• Water pollution• Sources• Drinking water• BOD• Eutrophication• Groundwater• Wastewater treatment
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Sources of water pollution
• Urban runoff• Agricultural runoff• Spills• Radioactive materials• Industrial runoff• Erosion• Atmospheric fallout• Power plants
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Drinking water standards
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Infant mortality
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Categories of water pollutants
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Biological Oxygen demand
• Pollution zone• Active decomposition
zone• Recovery zone
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Water borne diseases
• Cryptosporidium= GI illness and flu like symptoms
• Resistant to chlorination• Source: Cattle• Fecal coliform bacteria
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Nutrients
Eutrophication
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Oil
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Surface water pollution
• Sediment• Acid mine drainage• Chemical
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Groundwater pollution
• Overpumping• Deep well injection
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Salt water intrusion
• Cone of depression• Cone of ascension• Movement of groundwater, Nassau county, Long
Island
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Waste water treatment
• Primary• Secondary • Tertiary• Economics
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Waste water renovation
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Constructed wetlands
Avondale in Arizona,