Percolation well in Ahmedabad
Groundwater Recharge by Percolation Pit
India is going to face a major water crisis in the future. Overexploitation of groundwater and intensive irrigation in major canal commands has posed a threat to groundwater in India. It has been reported that in many parts of the country the water table is declining at the rate of 1–2 m/year. A few districts in Punjab show substantial decline in groundwater table, with depletion occurring at a rate of 91 cm per year.
Structure of the earth consists of different layers, surface of earth is covered with a soil zone below that weathered zone next to that fractured zone and finally central core of the earth is massive rock zone. Even this massive rock has cracks, the percolated rainwater get stored in all these layers. This storage itself called underground water. Openwell generally of 20ft to 30ft depth depend on the storage water from the soil and weathered zone. The borewell gets water from fractured and rock zone. Water from deep layers of will have more salt content, this hard water is unfit for irrigation and drinking also.
Salt layer accumulates in the irrigation pipe. This saline water decreases the percentage of germination and crop yield. So, recharging water can bring down the salinity of such borewell water. Hence it improves the water yield as well as quality of water. It can be the cheaper and permanent solution of the water problem.
Advantages of percolation pit:
Implementation of the technique shows a 3–6 times increase in the tube-well’s water-output.
Quality of the water is increased.
It is a cost effective technique, use of only natural materials helps keep the cost much lower (Rs 100, 000/-) compared to the cost of getting a new tube-well (Rs 1, 50, 000/-) .
It is a permanent solution to water-scarcity issues faced.
Rain Water Harvesting Techniques.
Ground water recharge in Rural areas
Gully plug
Contour bund
Gabion structure
Percolation tank
Percolation Pit
Check dams / cement plugs / nala bunds
Recharge shaft
Dugwell recharge
Ground water dams or sub-surface dykes
Ground water recharge in urban areas
Recharge pit
Recharge trench
Injection Well
V - Wire Technology
Tube wells
Trench with recharge well
Percolation well Ahmedabad
Defunct Borewell Recharge System
Borewell Recharge system
Rainwater Harvesting in Gujarat
Rainwater Harvesting in Vadodara
Rainwater Harvesting in Surat
Rainwater Harvesting in Por
Rainwater Harvesting in Bharuch
Rain water Harvesting in Dahej
Allegiance Water Management
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