IndiaBIX

Biochemical Engineering - Water Treatment

Exercise : Water Treatment - Section 1
  • Water Treatment - Section 1
26.
Permanent hardness of water may be removed by the addition of
lime
soda ash
potassium permagnate
sodium bicarbonate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Both temporary and permanent hardness of water can be removed on boiling water with
calcium hydroxide
sodium carbonate
calcium oxide
calcium carbonate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Lagoons may be characterized as
anaerobic
facultative
aerated
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Temporary hardness of water may be removed by adding
calcium hydroxide
calcium carbonate
calcium chloride
sodium bicarbonate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The maximum desirable limit (BIS of mercury in the drinking water is
0.05 mg/l
0.9 mg/l
0.1 mg/l
0.001 mg/l
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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