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An inlet manifold is used to transport the flocs from the inlet channel to the sedimentation tank taking into account two constraints. Floc breakup and Floc sedimentation.
Floc breakup occurs when the energy dissipation is very high. From initial tests done by the AguaClara team, the maximum energy dissipation rate to prevent floc break up was 6 mW/kg. Previous plants (i.e. Cuatro Comunidades), where designed with this constraint and showed heavy sedimentation. Velocity in the manifolds was very low and particles settled here.
The objective of the new design was to prevent particle settling inside the manifold without increasing the energy dissipation rate to prevent floc breakup. For the final design a pipe manifold was used.
Design Parameters
- Number of ports = 15cm
- Spacing between ports = 20cm
- Port Diameter = 4cm
Wireframe Image
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