Water Quality and Treatment

These are the physical parameters of water quality except

• turbidity

• salinity

• temperature

• BOD (biochemical oxygen demand)

These are the parameters used to calculate WQI (Water Quality Index) except...

• BOD

• DO

• Phosphorus

• Ammoniacal nitrogen

• Total Suspended solid

Runoff of sewage and agricultural wastes into coastal waters introduce

• algae growth

• rainwater

• surface runoff

• oil spill

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

improved water quality can be achieved by

• appropriate use of water

• careful water storage and handling

• proper land management

• all of the above

What 2 important nutrients are tested for in a body of water to check for eutrophication levels?

• nitrates and phosphates
• dissolved oxygen and pH
• CO₂ and O₂
• nitrates and dissolved oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A factory is located next to a river.  The factory has a sewage pipe running straight out of the factory and into the river.  This is an example of ________________________.

• point source pollution
• non-point pollution
• tertiary receiving stream
• primary treatment

Tags

NGSS.MS-ESS3-3

pollutants entering waterways from a general area, such as runoff from farmland or suburban communities

• Pollution
• Point Source Pollution
• Non-point Source Pollution
• Turbidity

Water that has been used by humans, but doesn't contain sanitary waste is called ________________.

• gray water
• septic water
• potable water
• none of these

"Turbidity" is the measure of a body of water's ____________________________.

• cloudiness
• eutrophication
• temperature change
• flocculation

What is fecal coliform a measure of?

• A direct measurement of feces concentration.
• Number of bacteria (like E. coli) commonly found in sewage.
  
• The ability of water to transmit viruses such as influenza.
• The brownness of the water.