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Settlement Ponds

IllustrationThe management, separation, and recovery of particulate matter from treatment processes can take a number of forms.  In high-value systems where particulate matter is re-used and fluid volumes are relatively small the flow is often centrifuged. In systems where fluid volumes are large, then gravitational separation can used to provide a cost effective solution.  This is normally achieved in settlement ponds where flow speeds are reduced and suspended materials are allowed to settle out.

IllustrationSettlement ponds must periodically be drained, and the resulting consolidated material (often toxic and requiring special disposal treatment) is removed mechanically.  In flood management systems these ponds can take the form of wetlands.

Effective settlement in ponds can require the use of baffles to distribute flow to make best use of the available volume.  If the surface is open to the environment, then the influence of high winds must be considered in the ponds design.

Blue Hill Hydraulics uses CFD to improve the design of settle ponds and systems designed for solid separation.

 

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