In this cross section design of the boom, waves are less likely to go over the top compared to a cylindrical boom design. Also the wave tips and spray are kept in check and return to the sea water.

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In this cross section design of the boom, waves
are less likely to go over the top compared to a
cylindrical boom design. Also the wave tips and
spray are kept in check and return to the sea
water.
Fresh water.
Sea water.
Halocline fresh /sea water layer.
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In this cross section design of the boom is a
simple boom as used in the oil spill containment
method. Waves that are more than half the height
of the boom will result in some sea water
entering the fresh water.
Fresh water.
Sea water.
Halocline fresh /sea water layer.
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To prevent wave tips and spray going over the
boom these arresters are added. Sea water
spray would drain back to the sea. Waves that
are more than ¾ the height of the boom will
result in some sea water entering the fresh water.
Fresh water.
Sea water.
Halocline fresh /sea water layer.
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Fresh water.
Sea water.
Sea water.
This shows the full diameter of the boom, a 5Km
diameter reservoir would hold 295 million litres
of fresh water when using a 15m curtain wall.
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Viewed from above the circular wall is anchored
in position by many anchor lines.
Fresh water.
Sea water.
Sea water.
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Valve and pump assembly.
Pipe to reservoir.
Sea water.
To ensure only river water flows into the pipe,
it may be advisable to have the pipe connected
directly to the final and already existing weir
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Fresh water.
Pipe to reservoir.
Weir.
Sea water.
Here the pipe to the reservoir is connected
directly to the final and already existing weir
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