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Select a bore Well in Rural/Urban Area Which is in use for drinking water purpose and see the feasibility of access of rainwater flow to the proposed Injection Well.
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Creation of a well near the existing Bore well
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Reinforced concrete cement rings to construct recharging well to hold the Filtered water, since any bore well will not be able to percolate all the received rainwater at a stretch. Hence the storage of water is indispensable for the slow percolation.
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Reinforced perforated slab is to be used before filtration media
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Around the existing bore well a new bore well has to be dug and that bore well has to be filled up with small gravel.
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HDPE pipe is to be inserted into the Bore well and both Ends should be fitted with "V" WIRE SCREEN.
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The gravel packing surrounding the HDPE casing Pipe enables the easy movement of the rain water from the casing pipe to the surrounding aquifer dried joints and cracks.
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Fixing of the specially designed "V" wire Non Clogging strainer to the HDPE casing pipe to allow the water into the casing pipe to Recharge the groundwater.
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Make a SILT TRAP near the INJECTION WELL with a pipe Connection to the INJECTION WELL to facilitate the flow of rainwater from the ground. Channels to be prepared and lead the water into the SILT TRAP
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Through this channel, the rainwater falling from roof top, the water flowing from roads and field etc to be conveyed to the SILT TRAP first, in order to make the rainwater flow to INJECTION WELL.
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The rainwater flowed through the Filtration Process and collected in the INJECTION WELL slowly percolates through the V Wire into the ground and reaches the dry joint, cracks and aquifer and recharges the GROUND WATER SOURCE.
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This "V" WIRE TECHNOLOGY helps percolate large quantity of water, which other wise would have gone waste by runoff. Thereby it not only increases the ground water quantity but also reduces the salinity and fluoride contents in the water, by dilution effect. |
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Average rainfall is considered 800 mm per year.The precipitation of 12.5mm rainfall gives the yield of 50,000 liters of water in an acre of land. The rainwater flowed through the Filtration Process and collected in the INJECTION WELL slowly percolates through the V WIRE into the ground and reaches the dry joint, cracks and aquifer and recharges the GROUND WATER SOURCE. In spite of evaporation loss and runoff, the minimum of 15000 liters of water could be percolated into the ground in a day. The usual spread over of rainfall in a year is considered about 70 days. Hence, 70 days x 15000 liters =1050000 liters. Every year minimum of 1050 kiloliter of rainwater
can be recharged through this method.
OBJECTIVE: Steep decrease in ground water level. If steps are not taken now to redress this trend, there will be a likely hood of huge crisis of potable water within a decade. Because of overpopulation, an agricultural and industrial development the overexploitation of underground water by sinking Bore wells was assumed to be inevitable without
forethoughts, which could cause detrimental consequences. Reckless depth of sinking Bore wells resulted uncertain yields and impure water. The present situation is that the depth has gone to the extent of more than 1200 feet, which was earlier 150 feet. Only alternative of rescue is to Re-charge the under ground water table through Rain Water
Harvesting System. Example: for the above said situation KOLAR district is an example (Karnataka State, India).
INNOVATIVE: (FARMLAND RECHARGING WELLS). It is innovative and unique because it ensures that only clean rainwater is used to recharge the Bore well. Our method is the only method, which creates a water column of 13 feet height around the casing pipe. This unique method causes speedy percolation of the stored water into the deeper underground water source. The conventional methods of other kind are not capable to recharge the underground water to such depths in using the stored and filtered rainwater.
RESULTS: Our method ensures appropriate recharge of the Bore well. We have documented the data for several Bore wells. The water yield in the Bore well has increased manifolds even with the Rainfall for one season. Besides, the quality of the water has improved considerably.
It has changed the livelihood of the farmers and also Urban and Rural population economically wherever this unique system is implemented because of the availability of sufficient water for drinking & irrigation purpose.
VIABILITY: There will not be any recurring expenses thereafter. The FARMLAND RWH SYSTEM prevents drying up of the Bore well. Thereby investment of Rs.50,000.00 to Rs. 1.5 lakhs for a new Bore well will be saved (depending on the depth of the Bore well), and also there is no guarantee of striking the water where the Bore well is drilled. By adopting OUR UNIQUE RWH SYSTEM the availability of the water will be guaranteed. The project cost can be easily recovered from the user families during a period of 2 to 3 years.
SUSTAINABILITY: Our project certainly protects the environment by preventing over-exploitation of the vital natural resource i.e. water. In addition, it provides environmental benefits by fully utilizing the rainwater by recharging of Bore wells and improving the underground water source. It also reduces the erosion of the precious topsoil by arresting the run off water from the farms and open fields. |