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It should be kept in mind that during these tests, the main purpose of the plant was to provide potable water for the communities. These tests were a lower priority and this created several initial challenges to shutting off one sedimentation tank. When all the flow passed through one tank, the head loss through the original effluent launders was high enough to flood the plant. New effluent launders were created to run one tank. They were designed with a head loss of four centimeters using the equation:
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{latex} \large \[ h = \left( {\frac{Q} {{K A}}} \right)^2 \frac{1} {{2g}} \] {latex} |
where:
- Q is the plant flow rate
- A is the total area of the effluent launder orifices
- K is a minor loss coefficient
- h is the head loss
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