Water Filtration Steps 1
What is one chemical coagulation use?
What happens during the sedimentation process?
During sedimentation, flocs settle to the bottom of the water because they are heavier than water.
What is the definition of a waterborne disease?
An incident in which two or more epidemiologically linked people experience a similar illness after exposure to the same water source and epidemiologic evidence implicates the water as a likely source for the illness.
What is a watershed and a wetland?
A watershed is a land area that channels rainfall and snow melt to creaks, streams, and rivers which eventually lead to the ocean while wetlands are areas of water that cover the soil or are present either at or near the surface of the soil all year or for a varying period of time during the year, including during the growing season
What is the equation of water?
H2O
What are the advantages of coagulation in the water treatment process?
Allowing for solids removal and dewatering, water clarification, lime softening, and sludge thickening.
What are the different materials used during the filtration process?
Sand, gravel, and charcoal
Name 3 symptoms of a waterborne disease.
Diarrhea, vomiting, nausea, stomach cramps, fever, skin/ear/eye problems, and shortness of breath
(Any of them are correct)
What is the difference between a watershed and the wetlands?
A watershed provides water to an ocean over time while a wetland is just a body of water over soil.
What national park introduced wolves to help the biodiversity?
Yellowstone National Park
What are the steps of the water treatment process in order?
Coagulation, flocculation, sedimentation, filtration, and disinfection.
What does the water filtration remove (Multiple answers)
These filters remove dissolved particles and germs, such as dust, chemicals, parasites, bacteria, and viruses. Activated carbon filters also remove any bad odors.
Who is at risk of a waterborne illness?
Infants, Young children, pregnant women/unborn babies, elders, and people with chronic disease and/or weak immune systems
What's watersheds' role in the environment?
The role of watersheds in nutrient cycling is important for stabilizing the environment at local and global scales. Forested headwater streams function to filter sediment and pollutants, which directly benefit humans and other animals in the form of clean water. At a larger scale, naturally vegetated floodplains provide storage and slow release of water. This benefit reduces the risk of flooding for anyone who lives near a river.
What water source holds the most water?
Oceans, Seas, & Bays at 96.54% of water.
What do adhesive forces do in the water treatment process?
It is a force that causes molecules of different substances to be attracted to one another.
Which disinfection chemicals are used after the water has been filtered?
Chlorine, chloramine, or chlorine dioxide
Name 2 waterborne illnesses.
Amebiasis, campylobacter, cryptosporidium, cyclosporiasis, E. coli, giardia, harmful algal blooms (HABs), legionella, norovirus, shigellosis, swimmer's ear, and swimmer's itch
What is the wetlands' role in the environment?
Wetlands are on par with rainforests and coral reefs as one of the most productive ecosystems in the world. As well as acting like a giant reservoir and supporting biodiversity, they are valuable for many reasons. This includes improving water quality control, protecting us from extreme weather events, recreation (e.g., fishing and photography), reducing coastal erosion, and providing a home for thousands of aquatic species.
How much freshwater is in glaciers and ice caps?
68.7%
What happens in the pre-chlorination step?
They add chlorine before the chlorination step
What are two non-chemical ways to disinfect the water?
Ultraviolet (UV) light and/or ozone
What can you do to protect yourself from waterborne illnesses?
- Stay out of the water if you have diarrhea
-Shower before you get in the water
-Do not drink water from untreated or unknown sources
-Ensure building owners and managers maintain building water systems
What are the roles of trees in the watershed?
The role is to reduce stormwater runoff and flooding. Trees take up water from the soil through their roots, which increases soil water storage potential and lengthens the amount of time before rainfall becomes runoff. Trees promote infiltration by slowing down runoff and by increasing soil drainage in the root zone.
What percentage of water is freshwater?
2.5%