Water Treatment Flashcards
Ehat is the acceptable range for residual sodium sulfite in the boiler?
12-30
20-40
30-70
40-80
30-70
What is the BTU content of a galln of #4
141,00
148,00
146,00
150,00
146,00
What does a zeolite water softener system uses as a means of regeneration
Salt
Hot water
Cold water
Brine
Brine
What chemical compound in water causes permanent hardness
Calcium sulfate and magnesium silica
What chemical are used to combat corrosion
Sodium sulfite and hydrazine
You have a boiler water that is found to have a ph of 5 what compound do you add to neutralize
Bases
What produce soft scale
Calcium carbonate and magnesium carbonate
With normal oxygen and low alkalinity what is added to boiler water
Neutralizing amines
What is hard forming scale
Silica
Which chemicals are used to combat scale
Combine phosphate chemicals
Which compound not heat produced
Nitrogen
What takes no action in combustion
Nitrogen
With hydroxide present and normal oxygen levels which chemicals will cause problem
Chlorine
What do you call the chemicals used to test water treatment test for hardeness
Reagents
Test chemicals
Titration test
Hardness titrant test
Reagents
What ate the 3 “T” of combustion stand for
Time temperature turbulence
The chief heat producing elements in fuels contents are
Carbon and hydrogen
Hydrogen and oxygen
Sulfur and hydrogen
Carbon and hydrogen
