HELP!!!! Wel Saltwater intrusion Consider the image. above. which depicts a grou
ID: 291863 • Letter: H
Question
HELP!!!!
Wel Saltwater intrusion Consider the image. above. which depicts a groundwater well that has become contaminated with naturally occurring salt water that is drawn toward the well because too much water was pumped from it for too long, What would be an easy way to restore the aquifer, that is, to push the saline groundwater back toward the ocean? Convert the "contaminated well into an injection well and pump freshwater into the aquifer through it. Install wells between the contaminated well and the coast with desalination equipment to remove salinity from the aquifer Cover the near-shore sea bottom with heavy plastic and concrete to prevent more seawater from entering the aquifer. O Increase the amount of rainfall that occurs just inland from your contaminated well.Explanation / Answer
1)
Intalls wells in between the contaminated well and the coast = These wells were drilled along the shore line in between the contaminated well amd the coast, because these drilled holes will handle the problem which are occuring with the contamintaed well and they can prevent the salty water to reach nearby of the contaminated well.
2) Pores spaces are not connected = Sandstone has the large sized grains and the pores which are appearing in the figure seems to be not joining at any point, this unconnection gives it a property of of porous and non semi permeable.
3). Area of the cross section of the canal water = Length x Width = 10 m x 3m = 30 m2
velocity of the water = 2 m/s
discharge = area c velocity = 30 x 2 m3/s = 60m3/s
4)
Area of the cross section of the canal water = 1/2 (perpendicular x base) = 1/2 x 10 m x 10m = 50 m2
velocity of the water = 1.5 m/s
discharge = area c velocity = 50 x 1.5 m3/s = 75m3/s
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