Solution Buddy

Answer the following question in brief:

(1) Describe the stages of water flow from the dam to the water treatment plant.

Ans

i) During monsoon, water from booklets(ohol) , runnels(Nale) , rivulets(odhe) , streams and rivers is stored in the dam.

ii) Impure water in the dams is purified and made drinkable at water purification centres / water treatment plant.

iii) The purified and drink table water then is supplied at the required locations.


(2) What is water purification ?

Ans.
Water purification is the collective name for a group of processes that make water more suitable for drinking use , industrial use , and so on.


(3) Which factors are to be considered while constructing water lifting station?

Ans.

i) The properties of water should not be affected.

ii) Water distribution system should be simplified.

iii) Availability of electricity or similar energy.

iv) Safety from crisis like flood , fire.

v) The type of and the number of pumps to be used to maintain regular supply of water.


(4) Briefly describe the process of water purification.

Ans.

i) At the water treatment plant it is churned after mixing chemicals.

ii) The water is filtered after the sludge settles down.

iii) Aeration is carried out to remove unwanted gases ( S) , substances that give water of foul and unpleasant taste , water volatile substances (eg. chloroform ) and reduced compounds of iron and manganese in water.


(5) Which activities are included in the maintenance / management of water in cities ?

Ans.

i) Maintaining various machines and instruments used . for example repairing a broken faucet or leaking pipelines , etc.

ii) Delivering the water with the right amount of pressure everywhere.

iii) Examining the water coming from the source , the water coming out of the sedimentation tanks and filters , and the water available for direct drinking on a daily basis.


(6) How is the water purification project maintenance system works ?

Ans.

i) The responsibility of the water supply system is usually with the central / state government till the completion of construction of a particular water supply project.

ii) However , after completion of all the work , it is handed over to the local government like :
gram panchayat , municipality or corporation.


(7) Describe the stage of water flow from them to the house.

Ans

i) During monsoon, water from booklets(ohol) , runnels(Nale) , rivulets(odhe) , streams and rivers is stored in the dam.

ii) Impure water in the dams is purified and made drinkable at water purification centres / water treatment plant.

iii) The purified and drink table water then is supplied at the required locations .