Show:
Sources of Wastewater
Treatment
Septic Tanks
Misc.
100
How many different categories are there for sources of wastewater?
3
100
How many different steps are there in treating wastewater?
4 steps
100
When the septic tank becomes full, solids have to be _______ out of the septic tank.
pumped
100
Wastewater is broken down or "_________" by bacteria.
digested
200
Water from homes and schools fits in what category?
Domestic
200
Name the three disinfectants used in the process disinfection.
Chlorine, Ozone, and Ultraviolet light
200
__________ break down the solids which settle to the bottom.
Bacteria
200
This is the process where wastewater is mixed with air.
aeration
300
Runoff from roads and parking lots fits into what category?
Storm-water
300
In pre-treatment wastewater is ________ to remove large objects.
screened
300
When homes or businesses are too ______ form a public wastewater treatment plant a septic tank has to be used.
far
300
The last step in wastewater treatment is?
disinfection
400
Water from businesses and factories fits in what category?
Industrial
400
Name the 4 steps of wastewater treatment.
Pre-treatment, Primary Treatment, Secondary Treatment, Disinfection
400
Household wastewater flows into the _______ _____
septic tank
400
Water is held in pools to allow heavy particles to sink to the bottom. Lighter particles (_____&_______) float to the top and are removed.
oil & grease
500
What are the 3 main types of categories for sources of wastewater?
Domestic, Industrial, and Storm-water
500
Wastewater is mixed with ________ to speed up the process.
air
500
"Treated" water then flows out through pipes and out through ____________ pipes.
Perforated
500
What is the second step in wastewater treatment?
Primary Treatment