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