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Sand Trap

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sand trap [′san ‚trap]
(engineering)
A device in a conduit for trapping sand or soil particles carried by the water.

sand interceptor, sand trap
sand interceptor
A small catch basin designed and constructed to prevent the

Sand Trap 

a device for separating mechanical impurities of mineral origin (mainly sand) from sewage. The sand trap is usually installed before the settling tanks of sewage treatment plants. Sand traps are used because simultaneous separation of mineral and organic impurities in settling tanks makes the process of removing the sediment from the settling tanks and subjecting it to further treatment (fermentation) in digestion tanks difficult. The sand trap mainly entrains sand particles 0.25 mm or more in size.

Sand traps may have horizontal, vertical, or spiral movement of the water (the first is the most common). Traps with spiral movement of the water may be aerated with compressed air blown through the water. Horizontal sand traps are reinforced-concrete tanks of rectangular or trapezoidal cross section, in which the water moves at a rate of 0.15–0.30 m/sec and remains in the trap for 30–60 sec; the sand is precipitated by the force of gravity.



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Golf Tips about Backhand Shots Hazards like ponds and sand traps are prickly areas to play.
We see manufactured sand traps trapped within a vast, natural sand trap.
Johnson, who finished 10th on 277, aimed for a gap between the sand traps surrounding the entrance to the green and quickly heard the noise when the ball fell into the hole.
 
 
 
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