1. RAIN WATER HARVESTING By:- Ankit Ballav Ayush Dixit Abhishek sengupta Deepak Singh Kshitij Nilank Subhasish Das

3. Harvesting System Broadly rainwater can be harvested for two purposes Storing rainwater for ready use in containers above or below ground Charged into the soil for withdrawal later (groundwater recharging) Source: A Water Harvesting Manual For Urban Areas

4. RAIN WATER HARVESTING TECHNIQUES : There are two main techniques of rain water harvestings. Storage of rainwater on surface for future use. Recharge to ground water. The storage of rain water on surface is a traditional techniques and structures used were underground tanks, ponds, check dams, weirs etc

5. Rain Water Harvesting?. Rain Water Harvesting RWH- process of collecting, conveying & storing water from rainfall in an area – for beneficial use. Storage – in tanks, reservoirs, underground storage- groundwater Hydrological Cycle

6. Roof Rain Water Harvesting Land based Rain Water Harvesting Watershed based Rain Water harvesting For Urban & Industrial Environment – Roof & Land based RWH Public, Private, Office & Industrial buildings Pavements, Lawns, Gardens & other open spaces RWH – Methodologies

7. 16 The roof catchment are selectively cleaner when compared to the ground level catchment Losses from roof catchment are minimum Built & Maintained by local communities No Chemical contamination & only required filtration Available at door step with least cost

8. 17 Rain water harvesting system The typical roof top rain water harvesting system comprises Roof catchment Gutters Down pipe & first flushing pipe Filter Unit Storage Tank

9. 23 Benefits of RWH in Praxis 1.The Harvested water will be accumulated underground gradually. Due to which water level beneath will keep on rising and there wont be any water shortage in summer season within the campus area. 2.Harvested water can be stored in tank and it can be used further for productive purpose.el to collect the water is to be made.

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