Question

Make a writeup for your proiect on preservation of rain water

Answer 1

Rainwater harvesting is becoming a new tool in the water conservation and stormwater management. The practice of rainwater harvesting dates back to the earliest days of civilization yet was nearly lost in the age of inexpensive and readily available municipal water supplies.  Lately, with the cost and supply of municipal water becoming an issue, there has been a resurgence of interest in rainwater harvesting by home and building owners.

Rainwater Harvesting refers to the collection and storage of rain. Collection is usually from rooftops and storage in catchment tanks or cisterns. Stored water can be used for non-potable purposes such as irrigating lawns and landscaping, washing cars, or even flushing toilets. Rainwater harvesting systems can range from a simple barrel at the bottom of a downspout to multiple tanks with pumps and controls. Before the creation of public water utilities, rainwater harvesting provided water for many American homes. It is still popular in places with limited water resources.

Using purified drinking water for purposes like irrigating landscape is a waste of a valuable resource. Fox Valley residents are asking more questions about the role of conservation in extending the supply of drinking water. Stored rain water can substitute for piped drinking water for many uses where a high level of purity is not required.

Rainwater harvesting is also effective in reducing stormwater runoff pollution entering the Fox River. When rain falls, it is clean, but it immediately picks up pollutants from rooftops and pavement. This pollution is carried into storm drains and then into streams. Collecting stormwater from rooftops and directing it to storage tanks so it can later be used for irrigation decreases the volume and rate of runoff. If we can reduce runoff, we can reduce flooding, water pollution, erosion, and stream habitat degradation; thus, a cleaner and healthier Fox River.

Answer 2

Preservation of rain water:

• The rain water can be preserved by various techniques. In Chennai the most important technique was used named as rain water harvesting. This technique is important because it makes rain water to directly store in the ground canal instead of mixing with sewage drainage.  
• Another method is to store the rainwater on roof top of home and connect to the ground water via pipeline from the terrace or roof to the ground tank system.
• The other method is by planting more trees, this will increase the capillarity by root of the plant to increase the storage of water in the ground.

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