Fluoridation
Softening
Disinfection Byproducts
Membrane TPs
Process Wastes
100
Temperature
What is fluoride dose based on?
100
Calcium and magnesium ions
What is hard water?
100
THMs
What are trihalomethanes?
100
Permeate
What is the liquid produced from the RO process?
100
Mechanical device that uses rotational forces to separate solids from liquids
What is a centrifuge?
200
Dental caries
What does fluoride prevent?
200
Insoluble
What is something that cannot be dissolved?
200
MCL
What is maximum contaminant level?
200
Reverse osmosis and nanofiltration
What are treatment processes used to remove dissolved organic matter?
200
Liquid removed from settled sludge
What is supernatant?
300
NaF
What is sodium fluoride?
300
Alkalinity
What is the capacity of water to neutralize acids?
300
Natural organic compounds
What are precursors?
300
SCADA
What is supervisory control and data aquisition?
300
Shallow, small volume storage ponds
What are solar drying lagoons?
400
Deterimines how readily a chemical dissolves in water
What is solubility?
400
A mineral that is a natural ion exchange material
What is greensand?
400
Time, temperature, pH, and concentration of chemicals
What are factors affecting THM production?
400
The passage of a liquid from a weak solution to a more concentrated solution across a semipermeable membrane
What is osmosis?
400
Gravity drainage and pressure dewatering
What are the two primary mechanisms by which free water is separated from sludge in a belt filter press?
500
Vomiting, stomach cramps, and diarrhea
What are signs of fluoride poisoning?
500
CaO
What is quicklime or calcium oxide?
500
Aeration, oxidation, clarification, adsorption, and ion exchange
What are THM precursor treatment processes?
500
To separate minerals from water
What is demineralization?
500
Passing the buck
What is discharging to the sewer?
M
e
n
u