LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of...
-
Upload
akira-honour -
Category
Documents
-
view
214 -
download
0
Transcript of LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of...
![Page 1: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/1.jpg)
LIS Quiz 1 Review
![Page 2: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/2.jpg)
What are the steps of Hypoxia?1. Excess fertilizer is sprayed on hundreds of residential lawns.2. Rain or runoff (CSO) brings nitrogen to rivers, then the
Sound.3. Excess nitrogen in the water causes an algae bloom.4. The algae die in a short time and settles to the bottom of the
water.5. Bacteria decompose the dead algae using more oxygen as
they multiply.6. Dissolved oxygen levels become very low.7. Fish leave and other less mobile animals weaken and die.8. The animals that died from low oxygen levels decompose.
Decomposers use more oxygen & the problem of low oxygen becomes worse.
![Page 3: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/3.jpg)
Coliform
• Bacteria found in sewage and human waste
![Page 4: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/4.jpg)
Combined Sewer Overflow (CSO)
• Release of untreated sewage & street runoff due to heavy rain
![Page 5: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/5.jpg)
Nonpoint Source
• Pollution you can not identify the specific source
![Page 6: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/6.jpg)
Pathogen
• Microorganisms that cause illness and disease
![Page 7: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/7.jpg)
Point Source
• Pollution you can easily identify and know the specific source
![Page 8: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/8.jpg)
Pollutant
• Anything in the air, water, or earth that is harmful
![Page 9: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/9.jpg)
Primary Sewage Treatment
• Process that removes solids from wastewater.
![Page 10: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/10.jpg)
Pycnocline
• Boundary between colder, saltier water at the bottom and warmer, less salty water on the surface – oxygen can’t cross
![Page 11: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/11.jpg)
Sanitary Sewers
• Sewers carrying human waste
![Page 12: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/12.jpg)
Secondary Sewage Treatment
• Process that removes organic matter from sewage
![Page 13: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/13.jpg)
Sewage
• Water carrying waste - wastewater
![Page 14: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/14.jpg)
Sewer Systems
• Complex of pipes and pumps carrying wastewater to sewage treatment plants
![Page 15: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/15.jpg)
Storm Sewers
• Sewers carrying road and parking lot runoff
![Page 16: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/16.jpg)
Wastewater Treatment Events
1. Plant Influent through sanitary sewers2. Bar Screens3. Primary Clarifiers4. Biological Reactors (bacteria)5. Secondary Clarifiers6. UV Disinfection7. Clean Effluent Discharge
![Page 17: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/17.jpg)
Plant Influent
• Water that comes from sanitary sewers and enters the plant
![Page 18: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/18.jpg)
Bar Screens
• Remove items larger than 0.75 inches – so the pipes do not get clogged
![Page 19: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/19.jpg)
Primary Clarifiers
• Removes about 50% of solids/sludge
![Page 20: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/20.jpg)
Biological Reactors
• Microorganisms digest sewage
![Page 21: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/21.jpg)
UV Disinfection
• After this process pathogens can no longer reproduce
![Page 22: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/22.jpg)
Solids Processing
• Solids are dewatered
![Page 23: LIS Quiz 1 Review. What are the steps of Hypoxia? 1.Excess fertilizer is sprayed on hundreds of residential lawns. 2.Rain or runoff (CSO) brings nitrogen.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649c855503460f9493c637/html5/thumbnails/23.jpg)
You should be able to…
1. Explain the difference between aerobic and anaerobic bacteria.
2. Identify which type of bacteria is used in a septic tank and which type is used at a waste water treatment plant and explain why.
3. Discuss the difference between the combined sewage system and the modern system.
4. Provide reasons why the modern system is better5. To go above and beyond – mention problems that a
modern system could have (news article)