Well injection is also used to create a hydraulic fresh water barrier in order to counteract lateral seawater intrusion. Examples of deep well injection to counteract seawater intrusion can found in the Llobregat aquifer in Barcelona.
|
Source water |
Pre-treatment |
Recharge |
Subsurface |
Recovery |
Post-treatment |
End-use |
|
Reclaimed water |
|
Injection in deep confining aquifer |
Storage and reversal of hydraulic gradient in target aquifer |
none
|
none |
Environmental |