Question

Information about rainwater harvesting and its uses

Answer 1

Introduction: Rainfall is a good source of water for both domestic and commercial use. Falling rain is always a welcome sight especially after weather characterized by extremely high temperatures.
Rainwater harvesting is the process of collecting rainwater and putting it to good use. There are different ways in which this task can be accomplished.Rainwater harvesting refers to the trapping and storing of rainwater so that it can be used at a later time when the need arises. As the rain falls, water is directed to a suitable collection point.

It can also mean collecting rainwater before it infiltrates into the ground and becomes underground water. Harvesting mainly entails gathering something from its natural source.

Rainwater harvesting, from the common definition of harvesting, is a process that involves collecting rainwater and increasing its value by eliminating impurities or directing it to places where its use is highly required.

It’s a practice that has been around for a long time. The only difference is that now better methods have been developed to make the process a great success. New technologies have come into play and are now making the process easier and more efficient.

Methods of Rainwater Harvesting
1. Surface Water Collection Systems
2. Rooftop system
3. Dams
4. Underground Tanks
5. Rainsaucer
6. Water Collection Reservoirs
7. Barrage
8. Slopes
9. Trenches
10. Rain Barrels
Advantages of Rainwater Harvesting
1. Water For Domestic Use
2. Water For Industrial Use
3. Supplementary Water Source
4. Cost Effective
5. Reliable Flow of Harvested Water
6. Mitigates/Reduces The Impacts of Floods
7. Building and Construction
8. Helps In Preventing Water Pollution
9. Irrigation
10. Saves Potable Water
PrecautionsPre-filtration to remove impurities would make the harvested water safer.The harvested rainwater can also be boiled to kill any germs before drinking it.Rainwater should be collected in containers that do not give out toxins when exposed to sunlight.Set up the collection points before it starts raining because you can fall ill when you run around in the rain.

Answer 2

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Rainwater Harvesting➫ The technique used to store rainwater by making water harvesting structure to recharge the underground water resource.

♦ It is one of the methods that can be used for water conservation.

♦ It can be a paved area like the terrace or courtyard of a building.

♦ If we are to have a sustainable future, then rainwater harvesting is going to have to become an important part of our life.

♦ The catchment of a water Harvesting system is the surface which directly receives the rainfall and provides water to the system.

➧ Types of rainwater harvesting system are:-
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❱ Direct Pumped
❱ Indirect Pumped
❱ Indirect Gravity

➧ It comprises components of various stages:-
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❱ Transporting Rainwater through pipes or drains.

❱ Filtration.

❱ storage in tanks for reuse or recharge.

➧ How is the Rainwater Harvesting Done:-
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❱ By taking rooftop rainwater directly into the ground by drain pipes, dug well or Sunk for water pump.

❱ By taking rain water directly into pond & tanks.

❱ By making percolation tanks, well, deep pits or trenches in the path of rainwater.

➧ Advantages of Rainwater Harvesting are:-
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❱ It reduces run of loss of rainwater.

❱ It maintains supply of water during dry month.

❱ It recharges underground water.

❱ It checks soil erosion.

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