*** This version of Confluence is for testing only and contains a copy of content from June 29th 2026. No changes will be preserved. ***
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The new flocculator has 31 channels and is about 35 cm long. The corrugated plastic dictates that each channel will be 0.7 cm x 1 cm. The clearance between the end of each baffle and the water surface or flocculator floor is 2.5 cm. The plant flow is 100 mL/min and the height of the water in the last channel is 25 cm. The height of the water in the first channel is about 26 cm and the headroom is set to be 2 cm. The flocculator is therefore 28 cm tall. The maximum shear in the flocculator is 45 /s and the total mixing is 5300. The residence time is about 5.4 minutes. The flocculator is compatible with the existing sedimentation tank, but is incompatible with the existing flow control module due to the downward flow direction of the first channel.
Figure 2. AutoCAD rendering of flocculator.
An ISO A1 construction drawing was also created for the flocculator and a similar drawing was released for construction.
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Most construction work was performed by Paul Charles of the Civil and Environmental Engineering Machine Shop.