How to improve ground water table

1. Artificial Groundwater
Recharging Techniques
By
Saisrinivas Gorugantula
Praneeth Chiravuri

2. What is groundwater recharging?
 It is hydrological process where water moves downward from the surface
water to groundwater.
 Recharge is the primary method that water enters an aquifer.

3. Location of
sites for artificial recharge
• (1) Water (availability, source, turbidity, quality, etc . )
• (2) surface soils
• (3) depth to aquifer
• (4) geologic structure and capacity of the ground-water reservoir
• (5) the presence of aquicludes
• (6) movement of ground water
• (7) location of withdrawal area

6. Basin Spreading Recharge
 A series of small basins for impounding water throughout the
intake area.

7. Ditch and furrows
 a series of shallow, flat-bottomed furrows or ditches, closely spaced, and on a
low grade, to spread water throughout the intake area.

8. • Recharge wells are of two types
a)Injection well, where water is
pumped in for recharge and
b)Recharge wells where water
flows under gravity.
Recharge wells

9. Injection well
• One effective
system for recharge
consists of drilling
injection wells into
the aquifer
downstream from a
dam. Water is then
conducted from the
principal spillway to
the wells.

10. Recharge well
• In some cases, wells
that normally are
pumped during the
growing season are
used for recharge
during other seasons.

11. RTRWH in Shram Shakti Bhawan, New Delhi

12. Benefits of Artificial Recharge
Schemes
 To maximize storage(long-term & seasonal)
 Water quality improvement through dilution
 Preventing saline-water intrusion & land subsidence
 Reducing reduction volumes from river f low
 Controlling effects of climate change
 Maintaining declining ground water levels

14. Thank you