Question

how does river water is purified for city water supply . explain with diagram​

Answer 1

Explanation:

The Heavy particles of dissolved alum deposit on the suspended clay particles in water. In this way, the suspended clay particles in water get loaded with alum particles, become heavy and settle down at the bottom of the tank. thus, the process of loading by using alum removes suspended clay particles from water.

Answer 2

Answer:

Once the floc has settled to the bottom of the water supply, the clear water on top will pass through filters of varying compositions and pore sizes, in order to remove dissolved particles, such as dust, parasites, bacteria, viruses and chemicals.

Explanation:

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