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Radial Flow Settlers
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The more quickly solids are removed from your system, the less time they have to break down and release nutrients and toxins into your culture water. Attaching a radial flow settler to your culture tank bottom drain, or to a series of them, provides a good first step in solids removal and reduces the solids-loading to downstream treatment equipment. Ideally the culture tanks are fitted with dual drains (a side outlet in addition to the bottom drain) so the settler is only receiving a fraction of the tank effluent where settleable solids have been pre-concentrated by the tank.
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How It Works
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Culture tank effluent is introduced into a center tube of the radial flowsettler as a downward directed flow. As the flow enters the main settling zone from the central tube, its velocity drops abruptly and it up-wells towards the outlet located near the top of the vessel. As the flow velocity drops and its direction changes, solids settle out and accumulate in the conical bottom. The clear water leaves the vessel by the overflow weir and the accumulated solids are periodically flushed from the bottom of the cone.
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