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Biochemical Engineering - Water Treatment

Exercise : Water Treatment - Section 1
  • Water Treatment - Section 1
6.
Hardness of water does not
have any bad effect in boiler
make cooking of foods difficult
make it unfit for drinking
cause difficulty in the washing of clothes with soaps
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Permanent hard water may be softened by passing it through
sodium silicate
sodium bicarbonate
sodium hexametaphosphate
sodium phosphate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with
10% calcium chloride solution
10% magnesium sulfate solution
10% magnesium chloride solution
10% sodium chloride solution
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Temporary hardness of water is caused by the presence of
chlorides of calcium and magnesium
sulfates of calcium and magnesium
bicarbonates of calcium and magnesium
carbonates of sodium and potassium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Secondary treatment uses __________ to consume wastes.
micro-organisms
chemicals
filtration
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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