NCERT Class XI Chemistry Environmental Chemistry Solutions
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Question : 12
Total: 20
Have you ever observed any water pollution in your area? What measures would you suggest to control it?
Solution:
Yes. The water pollution can be controlled by :
1. Treatment of sewage :
(a) by removing impurities,
(b) by passing chlorine,
(c) by treatment with alum.
2. Treatment of industrial waste :
(a) by precipitating impurities,
(b) by photocatalysis,
(c) by using ion exchangers.
1. Treatment of sewage :
(a) by removing impurities,
(b) by passing chlorine,
(c) by treatment with alum.
2. Treatment of industrial waste :
(a) by precipitating impurities,
(b) by photocatalysis,
(c) by using ion exchangers.
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