Surface water cannot fulfill the demand of water for various purposes. This reserved rainwater can be properly filtered and treated to be used as drinking water. It is essential to stop the decline in groundwater levels, arrest sea-water ingress, i. The main purpose of keeping the rain water conserved is the ponds, channels, ditches, canals, etc.
Arresting the decline of water table also checks water in grass, i. All you need is proper equipment and the knowledge of process of rainwater harvesting.
Two main techniques of rainwater harvesting are storage for future use and recharge into the ground. Rain water down pipes should be laid to take the rain water down. We can collect the rain water into the tanks and prevent it from flowing into drains and being wasted.
The contour map of the locality is studied and the point having the least contour value is then selected. It provides water during dry season. If the conventional building practice is to build a sump, the same sump can be used for harvesting rain water.
Where is Ozone present? This requirement can be met through rainwater harvesting at the time of rainy season. It may reduce the stress of public water supply sources.
This is highly beneficial for trees and other vegetation cover which draw mainly from underground water.
Why Rain Water Harvesting is Necessary: It provides easy and low cost water supply in the lack of water areas thus helps in food security and income generation.
We have perennial rivers like Ganga, Brahmaputra, Yamuna, Beas and others along with their tributaries and distributaries besides in North and Eastern India, we have spring fed and rain fed rivers in central and peninsular India-the major among these being- Godavari, Krishna, Narmada, Tapti and Kaveri.
Typically, rain is collected on rooftops and other surfaces, and the water is carried down to where it can be used immediately or stored. Free flow of water along the slopes of hills has caused heavy erosion of top soil.
It results in the overuse of ground water and thus going low level. Rain pattern analysis v. It is good to reduce the fear of water scarcity in the future. Observations in some other countries like Zimbabwe, Botswana and Israel have shown that up to 85 per cent of all measurable rain can be collected and stored from outside catchment areas.
To reduce hazards due to floods. Another alternative is the adoption of rainwater harvesting. Rainwater harvesting also gives you a renewable natural source of water.
You can also use the stored water for agricultural purpose and feeding your livestock.Storage: The most important part of the rain water harvesting is the storage system.
The storage system is designed according to the amount of water that is to be stored.
The design and site (location) of the storage or the recharge system should be. Rainwater Harvesting and its Importance | Essay | PDF December 26, by Study Mentor Leave a Comment Rainwater harvesting is a strategy of collection and storage space of rainwater into natural reservoirs or tanks, or the seepage of surface water into subsoil water channels.
Rainwater harvesting is the process of collecting the rainwater from the surfaces it falls and and then collecting it for the use in the future. Usually, the water is collected from the roof and stored in a tank. Words Essay on Rainwater Harvesting in India.
Article shared by. Rainwater harvesting is a way to capture the rainwater at the time of downpour, What are the Purpose and Process of Rainwater Harvesting? 4 Important Ways Used in Rainwater Harvesting in India.
Rainwater Harvesting refers to the process where rainwater is gradually gathered and accumulated, so that it can be used for agricultural, commercial or domestic purposes. The importance of developing rainwater harvesting.
Rainwater harvesting essentially means collecting rainwater on the roofs of building and storing it underground for later use. We will write a custom essay sample on Rainwater Harvesting.Download