1 / 20

Water Pollution & Treatment

Water Pollution & Treatment. Science 8 Chapter 2C NCSCOS 3.07. Warm-Up : copy each sentence with the correct response. The 3 classes of indicators are ____, biological, and chemical. Nitrates from fertilizers found in a water supply are _________.

media
Download Presentation

Water Pollution & Treatment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Water Pollution & Treatment Science 8 Chapter 2C NCSCOS 3.07

  2. Warm-Up: copy each sentence with the correct response. • The 3 classes of indicators are ____, biological, and chemical. • Nitrates from fertilizers found in a water supply are _________. • The dirtiness or cloudiness of water is ______. • pH is a method of measuring the _____ of water. • An living organism that is used to evaluate water health is a _______. • ______ can form in turbid water or in the presence of nitrates. • A _____ is an area of land that shares the same water. • Bio- indicator • Physical • Watershed • Algal Blooms • Chemical indicators • Acidity • Turbidity

  3. What is Pollution? A pollutantis any substance or form of energy that can cause harm to the environment and make it unfit for organisms. Two types of water pollution: • Point Source • Non-Point Source

  4. Water Pollution Sources • Point Source- you know the one source of pollution; it is identified; easier to detect and control • Non-point Source- comes from many sources that can not be easily identified; harder to control

  5. Point-Source examples: • Pipe from Sewage Plant • Pipe from Industrial Factory

  6. Point-Source examples:

  7. Point-Source examples: • Oil Tanker Spill

  8. Non-Point Source examples: • RUNOFF!!! • Water comes from across a large, more diffuse area of land • From…farms, lawns, parking lots, streets, construction sites, acid rain from air pollution, etc.

  9. Non-Point Source examples:

  10. Non-Point Source examples:

  11. Non-Point Source examples:

  12. Non-Point Source examples:

  13. Biomagnification/Bioaccumulation • Pollution gets into smaller organisms • Amount builds up as it gets passed up food chain • Chemicals could end up in food eaten by humans

  14. North Carolina Pollution • Sedimentation – increases turbidity • Erosion • Development • Agriculture – tilling soil, irrigation, livestock • Nutrient Pollution – increases Nitrate & Phosphate levels in water •  Algae Low Oxygen • Fertilizers run off in storm water • Fecal Coliform Bacteria from animal feces

  15. Water Treatment • Sewage Treatment Plants • Process raw waste & get water ready to enter back into rivers • 1.) Sludge separated, chlorine used to kill harmful bacteria • 2.) Oxygen & sludge-eating bacteria used • Septic Systems • Small wastewater system used by home or business in rural area • Sludge consumed by bacteria • Cleaner water exits & spreads into ground

  16. Septic System

  17. Water Treatment • Drinking Water Treatment Plants: • 1. Water piped in from river or lake • 2. Flows through mixers, clumping agents & chemical disinfectants added • 3. Clarifying pool separates large particles • 4. Filters separate tiny particles of dust & dirt • 5. Chlorine used to kill bacteria • 6. Clean water goes to water storage tank

  18. EPA • The Environmental Protection Agency sets and enforces water quality standards for wastewater, pollution & drinking water. • Focuses on protection of surface freshwater resources

  19. What can we do to help?! • Pick up pet waste • Pick up litter • Plant vegetation • Dispose of chemicals & wastewater appropriately • Reduce amount of water used

More Related