Water Treatment
What is the first step in the water treatment process?
What is Intake?
What is a cause of eutrophication?
Excess nutrients from fertilizers, sewage, and manure.
What is the cloudiness or haziness of a fluid caused by large numbers of individual particles called.
What is Turbidity
The amount of oxygen in the water
What is Dissolved Oxygen
Pollutants discharged from a single identifiable location
(e.g., pipes, ditches, channels, sewers, tunnels, contain-
ers of various types).
What are Point Source Pollution
What is the purpose of the disinfection step in water treatment?
To kill any remaining germs and bacteria
How can eutrophication be prevented in water bodies?
By reducing nutrient runoff through better agricultural practices.
The amount of dissolved oxygen that indicates unhealthy water is
less than 5 mg/L
pollution that comes from many sources rather than from
a single, specific site
What is Non point pollution
To eliminate the presence of harmful bacteria and unpleas-
ant coloration, taste, and odor is called
What is the water treatment process
What materials are used in the filtration step to remove smaller particles? Name the 3
Sand, Gravel and Charcaol
Which organism is most likely to thrive in a eutrophic environment?
What is Algae
an organism or biological response that reveals the presence of pollutants by the occurrence of typical symptoms or measurable responses is called this
What is a bio-indicator
The US federal agency with a mission to protect human
health and the environment
What is the EPA
What is the difference between potable water and safe water?
Potable water: is safe to drink
Safe water: safe for bathing/cleaning but not drinking
Which process follows coagulation in the water treatment sequence?
What is Flocculation?
How does eutrophication affect fish populations in affected water bodies?
Decreases Fish population due to Oxygen depletion
What does a low dissolved oxygen level in water typically indicate?
What is Polluted Water
responsibility for conserving and restoring the Earth's re-
sources for future generations
What is Stewardship
Requires the EPA to establish minimum contaminant lev-
els for pollutants that may adversely affect human health
what is the Safe Drinking Act of 1974
What are two things that water treatment plants need to do?
Clean and Disinfect the water
Potential consequence of eutrophication in marine environments?
What are the Formation of dead zones
Common method for measuring water quality
What is PH testing
organisms without backbones, which are visible to the eye
without the aid of a microscope.
What are Macro invertebrates
The Act that created water quality standards to control
pollution, including elimination of point source discharge
of pollutants.
What is the Clean Water Act of 1972