How rainwater harvesting can be done?

Rainwater harvesting is collecting the run-off from a structure or other impervious surface in order to store it for later use. Traditionally, this involves harvesting the rain from a roof. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel.

How rain water harvesting is done?

Rainwater harvesting systems capture rainwater by directing it from large surfaces (e.g. roofs) to an underground or over-ground holding tank. The harvested rainwater is filtered and then pumped directly to the appliances or to a header tank.

How can rainwater harvesting be performed?

This is done through catchment areas & conduits. The catchment of a water harvesting system is the surface which receives rainfall directly. It can be a paved area like the terrace or courtyard of a building. Conduits are the pipelines that carry rainwater from the catchment or rooftop to the harvesting system.

What are the ways to harvest rainwater?

Various methods of rainwater harvesting are described in this section.

  1. Surface runoff harvesting. In urban area rainwater flows away as surface runoff. …
  2. Rooftop rainwater harvesting. …
  3. Rooftop Rainwater Harvesting System. …
  4. Catchments. …
  5. Transportation. …
  6. First Flush. …
  7. Filter. …
  8. Sand Gravel Filter.

How rainwater harvesting is Practised?

Rainwater harvesting is the method of collecting rain water for the use before it reaches the ground. Generally rainwater is collected from the roof top through pipes and stored in underground storing structures.

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How is rooftop rainwater harvesting done?

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.

What are the methods of rainwater harvesting in India?

Common Methods of Urban Rainwater Harvesting

  • Surface Runoff Harvesting. Surface runoff harvesting is the most suitable method in urban clusters. …
  • Rooftop Rainwater Harvesting. Rooftop rainwater harvesting is the most popular of all harvesting options in urban areas. …
  • Recharge Pits.

Why do we harvest rainwater?

Harvesting rainwater allows the collection of large amounts of water and mitigates the effects of drought. Most rooftops provide the necessary platform for collecting water. Rainwater is mostly free from harmful chemicals, which makes it suitable for irrigation purposes.