Choosing Horizontal vs. Vertical Flocculation
The first step in the flocculator design is to choose whether to use horizontal or vertical flocculation. This is largely dependent on the flow rate. The following steps are taken to determine which one to use.
Determine the height of the water in the sedimentation tank and set it to the height of the water at the end of the flocculation tank.
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$$
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= HW_
Unknown macro: {FlocEnd}
$$
Set the T/S value equal to 3 (this is the optimal value and will be used for horizontal flocculation). Set S to it's minimum value of 45 cm (minimum for a human to walk through for maintenance).
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$$
P{i_{TSMin}} = 3
$$
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$$
{S_{FlocBaffleMin}} = 45cm
$$
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$$
{T_{Min}} = P{i_{TSMin}}\cdot{S_{FlocBaffleMin}}
$$
Calculate the minimum flow rate for using the following equation:
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$${Q_{MinHorizontal}} = {P_{FlocChannel}}\cdot{S_{FlocBaffleMin}}\cdot{\left( {{T_{Min\cdot2\cdotE{D_{Flo{c_0}}}} \over {Kp\cdot{\alpha _\varepsilon }} \right)^1 \over 3$$