Question

(a) Define carbonate and non-carbonate hardness of water. List the various disadvantages of hard
water for domestic use.
(b) Discuss the ion-exchange process for water softening.
(C) What do you understand by the priming and foaming problems in boilers ? (GGSIP, Dec 03)
(a) Describe the carbonate and phosphate conditioning of water to overcome the boiler-feed problem.
(b) Write short notes on: (i) lime-soda process, (ii) chlorination.
(GGSIP, Dec. 03)
(a) Distinguish between hard water and soft water. What is break-point chlorination?
(b) What is the principle of EDTA method ? Describe the estimation of hardness of water by EDTA
method.
(c) Explain the desalination of water by reverse osmosis method.
(d) Describe demineralization process of water softening. Explain the reactions involved.
(e) What is potable water ? What are the steps taken to obtain pure drinking water ? (Anna, Dec. 02)
(a) What are the water quality physical parameters ? Explain their significance.
(b) What is meant by sterilization of water ? Explain how sterilization of water is carried out by using
chlorine and ozone.​

Answer 1

Answer:

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Explanation:

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