1 / 24

WATER TREATMENT

WATER TREATMENT. Water Unit: ENVIRONMENTAL SCIENCE 303 LOCH. Remember this… What are TWO ways to naturally filter water?. How does water get clean if it isn’t naturally filtered?. How’s it all connected?. Arrange the following pictures. Do you drink your wastewater?. How sure are you?

hal
Download Presentation

WATER 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 TREATMENT Water Unit: ENVIRONMENTAL SCIENCE 303 LOCH

  2. Remember this… What are TWO ways to naturally filter water?

  3. How does water get clean if it isn’t naturally filtered?

  4. How’s it all connected?

  5. Arrange the following pictures

  6. Do you drink your wastewater? How sure are you? CREATE A KWL CHART

  7. SlideShow… Each student reads the next slide

  8. NOTES ON WASTEWATER

  9. Sources of “WasteWater” • Toilet • Sink • Washing Machine • Dishwasher • Your house, a laboratory, an industrial factory, etc…

  10. Greywater vs. Blackwater

  11. Combined Sewer Overflow • Wastewater tx plants will always be in the basin of a watershed…why?

  12. PRIMARY TREATMENT PROCESS • PHYSICAL • Filtering large particles  goes to landfill • Settle large particles  on to secondary • removes ~60% of suspended solids from wastewater.

  13. SECONDARY TREATMENT PROCESS • BIOLOGICAL • Bacterial growth promoted, then killed • Add O2 to encourage bacterial growth • Bacteria decompose waste – yum! • Bacteria are killed via chlorine (usually) • Removes >90 percent of suspended solids.

  14. ADVANCED (tertiary) TREATMENT • CHEMICAL & PHYSICAL • “optional” (not done conventionally) • Reduce pollutants of “special concern” • Nutrients like Nitrates and Phosphates…why? • Uses chemicals & a 2nd filter to clean more

  15. What’s Left? Where’s it Go? WATER • Into a lake or river  ocean • Crops/Golf course • Possible problems? SLUDGE • Lagoon • Incinerator • Crop fertilizer • Possible problems?

  16. YES OR NO….CAN IT GO? Beauty Products Medicine Engine Oil Paint Lawn Care Products Prescription Drugs Photographic Chemicals Used Cooking Oil Fat from cooking Bacon Diapers Tampons

  17. Wastewater vs. Drinking water treatment

  18. WastewaterTreatment Recap

  19. 2. 1. 3. Drinking WaterTreatment 4. 6. 5.

  20. Boiling Using Sun’s Rays to disinfect Lifestraw Purification plants Toilet to Tap How’s this linked to… Life expectancies? Natural Disasters? Hiking? Purification depends on $$$

  21. Bottled Water vs. Tap Water What do you normally drink? Why? What do you know about bottled water?

  22. Recycles wastewater to drinking water Video clip Toilet to Tap

  23. Create a Venn Diagram… • Show the differences and similarities between drinking water and wastewater treatment.

More Related