Roof Top Rain Water Harvesting In India

Rainwater harvesting rwh is the collection and storage of rain rainwater is collected from a roof like surface and redirected to a tank cistern deep pit well shaft or borehole aquiferor a reservoir with percolation.

Roof top rain water harvesting in india.

It s a simple indigenous technology being practiced in india for centuries. Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs. Sdg 6 for india. Roof top rain water harvesting depends upon the amount of rainfall and the roof top area.

More the amount of rainfall more is the harvested water from roof top. Key to water independence through rooftop rainwater harvesting in monsoon average cost for building a rooftop rainwater harvesting system rrwhs is inr 45 000 for 10 000 litre capacity tank. The concept involves collection of rain water either in natural reservoirs aquifers and or in constructed tanks. A 100 sqm roof area with an average of 50cm rainfall can yield 50 000 litres of water.

Harvested rain water can be stored in subsurface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks. Roof top rain water harvesting can be a very effective tool to fight the problem of water shortage particularly in urban areas. Rwh helps in achieving self sufficiency in water raises ground water level improves ground water quality and helps to reduce soil erosion.