Rainwater harvesting is the simple process or technology used to conserve Rainwater by collecting, storing, conveying and purifying of Rainwater that runs off from rooftops, parks, roads, open grounds, etc. for later use.
Rainwater harvesting is the process of accumulation and storage of rainwater for reuse rather than allowing it to runoff.
Rainwater harvesting is a sustainable process that helps in preserving water for future needs. Water scarcity is a major concern in today’s scenario. The process of rainwater harvesting is a good way to conserve water.
Types of Rainwater Harvesting
Rooftop Rainwater Harvesting
Rooftop Rain Water Harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs. Harvested rain water can be stored in sub-surface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks.
This is the best and most effective method of harvesting rainwater for apartments as it is less expensive and if implemented efficiently, helps in augmenting the groundwater level of the area. This is a system of catching rainwater where it falls. In this method, the roof becomes the catchment, and rainwater is collected from the roof of the building, which can either be stored in a tank or diverted to an artificial recharge system.
Surface Runoff Harvesting
Surface runoff water harvesting is the collection, accumulation, treatment or purification, and storing of stormwater for its eventual reuse. It can also include other catchment areas from manmade surfaces, such as roads, or other urban environments such as parks, gardens and playing fields.
Surface runoff is water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle.
Runoff that occurs on surfaces before reaching a channel is also called overland flow.
A land area which produces runoff draining to a common point is called a watershed.
Rainwater harvesting is a sustainable process that helps in preserving water for future needs. Water scarcity is a major concern in today’s scenario. The process of rainwater harvesting is a good way to conserve water.
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