In the areas of regular rainfall the perfect alternative to overcome the water.
Roof top rainwater harvesting ppt.
Rainwater harvesting seminar and ppt with pdf report.
Our earth is covered with 75 of water and 25 of land but water scarcity is a global issue because the large extent of water is not used for the domestic purpose irrigation purpose and one of the solutions for such problem is the 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.
In rooftop harvesting the roof becomes the catchments and the rainwater is collected from the roof of the house building.
This method is less expensive and very effective.
Borewell recharging method other minor methods are y farm pit method y farm trench method costs and economic viability of roof water harvesting system y two types of systems.
Roof top rain water harvesting system.
Average annual rainfall in mm 792 4.
Total volume of rainwater harvested 4446 metre cubic.
It consists of conservation of roof top rain water in urban areas and utilizing it to augment ground water storage by artificial recharge.
The main objective of rooftop rain water harvesting is to make water available for future use.
In rooftop harvesting the roof becomes the catchments and the rainwater iscollected from the roof of the house building.
Rainwater harvesting systems installed in multistoried buildings can suffice for daily water usage by the building residents.
Well recharging method 2.
Components of the roof top rainwater harvesting system.
Removes rooftop debris protects tank water quality install above or below ground filter capacity up to 33 000 ft2 1.
Total roof top surface area 13910 sq.
Rainwater collected in the roof flows down the pipes running down the length of building into service wells or percolation pits water trickles down the layer of pebbles and boulders designed for underground filtration filtered water flows into either recharge well or the collection chambers with this setup the building can draw water readily from its water table in.
Roof top rain water is collected in collection chambers and diverted to recharge wells through interconnecting pipe lines.
This technique is particularly useful in dryland hilly urban and coastal areas.
Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs.
Water requirement is met by one bore well and is supplemented by municipal supply.
Roof top rain water harvesting or domestic rainwater harvesting is the technique through which rain water is captured from roof components and stored in tanks reservoirs ground water aquifers.
Powerpoint presentation created date.
Pre tank filtration after m ore than 20 years in the rainwater industry rainwater managem ent solutions has identified the w isy 4 step system as the ideal m ethod for rainwater harvesting.
