WATER TREATMENT TEST BANK
COMPLETE SOLVED QUESTIONS EXPERT
REVIEW FULL SOLUTION
●● Chlorine Gas
Answer: up to a 5ppm standard. Flush affected areas. turn cylinder so
that gas is escaping, not liquid. sodium thiosulfate neutralizes chlorine
●● What to do if there is a phenol spill upstream.
Answer: Shut down the intake.
●● non moving parts of a pump
Answer: casing
●● DAF - Dissolved air flotations removes what
Answer: suspended matters such as oil or solids. (air scour)
●● why is it important to know sludge content?
Answer: sludge can contain pathogens, hazardous chemicals, and may
have to be disposed of accordingly.
●● Potassium Permanganate safety hazards.
, Answer: strong oxidizing agent, dangerous if consumed or inhaled,
reacts violently with metals. Dry powder. may explode when comes in
contact with liquid combustibles.
●● Red Water
Answer: Caused by iron. or iron bacteria.
●● Lime soda ash
Answer: removes non carbonate hardness forming an insoluble material
that is then filtered out. can remove calcium and magnesium.
●● erosion
Answer: can cause the run off of chemicals and increase turbidity levels.
●● fusible plug melts at what level?
Answer: 158-165 degrees Fahrenheit.
●● how to remove flouride
Answer: distillation, reverse osmosis, deionization, activated alumina.
●● valves good for regulating water flow
Answer: globe valve, gate valves, modulating control valve.
COMPLETE SOLVED QUESTIONS EXPERT
REVIEW FULL SOLUTION
●● Chlorine Gas
Answer: up to a 5ppm standard. Flush affected areas. turn cylinder so
that gas is escaping, not liquid. sodium thiosulfate neutralizes chlorine
●● What to do if there is a phenol spill upstream.
Answer: Shut down the intake.
●● non moving parts of a pump
Answer: casing
●● DAF - Dissolved air flotations removes what
Answer: suspended matters such as oil or solids. (air scour)
●● why is it important to know sludge content?
Answer: sludge can contain pathogens, hazardous chemicals, and may
have to be disposed of accordingly.
●● Potassium Permanganate safety hazards.
, Answer: strong oxidizing agent, dangerous if consumed or inhaled,
reacts violently with metals. Dry powder. may explode when comes in
contact with liquid combustibles.
●● Red Water
Answer: Caused by iron. or iron bacteria.
●● Lime soda ash
Answer: removes non carbonate hardness forming an insoluble material
that is then filtered out. can remove calcium and magnesium.
●● erosion
Answer: can cause the run off of chemicals and increase turbidity levels.
●● fusible plug melts at what level?
Answer: 158-165 degrees Fahrenheit.
●● how to remove flouride
Answer: distillation, reverse osmosis, deionization, activated alumina.
●● valves good for regulating water flow
Answer: globe valve, gate valves, modulating control valve.
