Roof Top Rain Water Harvesting Methods

After first flushing of rainfall water should pass through filters or directly stored in tank and filter before use.

Roof top rain water harvesting methods.

In rooftop harvesting the roof becomes the catchments the rainwater is collected from the roof of the house or building. Components of a rooftop rainwater harvesting system. Gansu in china and semiarid northeast brazil have the most essential rooftop rainwater harvesting projects happening. Promoted heavy rainwater harvesting within the 1950s.

It is a method of catching rainwater where it falls. Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs. Capturing and storing rain water for use is particularly important in. A gravel sand and netlon mesh pressure filter is designed and placed on top of the storage tank or near the tank depending upon the use.

In the case of a rooftop rainwater harvesting system the roof of a house or of another building serves as the rainwater collection area. The rooftop rainwater harvesting is a method from which rainwater is captured from the roof catchments which is then stored in reservoirs and by adopting artificial recharge techniques to meet the household needs through storage in tanks harvested rainwater can be stored in the sub surface groundwater reservoir. Usually a large storage tank is used as the storage unit which is primarily designed based on the water demand requirements and the expected rainfall. The efficiency and the quality of the water collected depends on the effective roof area and the materials that the roof is constructed of.

It can either be stored in a tank or diverted to an artificial recharge scheme. Various methods of using roof top rainwater harvesting are illustrated in this section. There are three basic components of a rooftop rainwater harvesting system. The rural population of thailand about 40 utilises rainwater harvesting.

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.