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Catalyst

Catalyst. Recently, there was a large oil spill in the Gulf. What were some impacts of the oil spill on the ecosystem? What steps did/could people take to clean up the oil spill? What can be done to prevent future spills? *Please turn in Zork lab report*. Water Pollution.

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Catalyst

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  1. Catalyst • Recently, there was a large oil spill in the Gulf. • What were some impacts of the oil spill on the ecosystem? • What steps did/could people take to clean up the oil spill? • What can be done to prevent future spills? *Please turn in Zork lab report*

  2. Water Pollution • Point Sources: Pollute from specific locations • Examples? • Problems? • Non-Point Sources: Diffuse area of pollution • Examples? Atmospheric Deposition • Problems?

  3. Types of water pollution: Examples and sources • Infectious agents • Organic Chemicals • Inorganic Chemicals • Radioactive materials • Sediment • Plant nutrients • Oxygen demanding wastes • Thermal

  4. Water Quality Controls • TMDL: Total maximum daily loads for pollutants • Groundwater is hard to monitor and clean • Much of the world has serious water quality problems • Point source is easier than nonpoint source

  5. Cleaning waste • Natural Processes: Septic tank systems • Municipal Systems: • Primary Treatment-Physical separation/filtration • Secondary Treatment: Disinfection • Tertiary Treatment: Chemical/physical removal of plant nutrients

  6. Using online resources, in your groups… • Come up with materials and procedures to clean up an oil spill. • Think about • what the consequences of different cleaning techniques might be • How long each technique might take • How “clean” it would be able to get your ecosystem

  7. http://www.ceoe.udel.edu/oilspill/cleanup.html • http://science.howstuffworks.com/environmental/green-science/cleaning-oil-spill.htm • http://www.smartplanet.com/blog/science-scope/whats-the-best-way-to-clean-up-the-oil-spill-in-the-gulf/2399

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