Water Supply – Demands and Requirements – An Engineering Prospective - Part2

In the Part-1 various drinking water quality requirements have to be mentioned to be considered before the water is to be available home consumers. Just a repetition  of those is below

Now just fill the make a table and fill the appropriate or most suitable water treatment method which can be employed to reduce the each quality concern at the appropriate level so as it would not be harmful to the consumer for drinking. Now if you have made it now just match your result with the table below.

1.       Carbonates -  that is hardness of the water to be removed

2.       Undissolved particles to be removed

3.       Satisfactory Colour, Odour and taste

4.       Removal of Toxic Substances if any.

5.       Pathogens, bacteria, Viruses etc.

6.       Removal of unrequired minerals

7.       Heavy metals

8.       Nitrogen (nitrite, nitrate, ammonium)

9.       Phosphorus

10.   Temperature i.e. setting limit

11.   pH

12.   Organic matter

13.   Fluoride

14.   As (Arsenic)

And specially the ground water contains

15.   Fe²⁺ and Mn²⁺

16.   Ca²⁺ and  Mg²⁺

...................................................................

..................................................................

S. No.	Quality Concern	Treatment Method which can be employed
1	Carbonates -  that is hardness of the water to be removed	Chemical precipitation

Water Supply – Demands and Requirements – An Engineering Prospective - Part1

When thinking of the water supply system, following are the most important factor needs to be considered, before planning and thinking of an drinking water supply system.

·         Quantity (how much quantity is available by some natural or artificial resource)

·         Quality ( normally comes by the demand of consumers and its standards are normally set some governing body in the interest of public)

·         Reliability