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The alum doses delivered by both the original PVC lever arm and the aluminum model were measured. The alum dose was determined by measuring the flow rate delivered by the CDC. The dose was then calculated using the equation:
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\large
$$
C_{dose} = {{Q_{FCM}{C_stock} } \over {Q_{plant} }}
$$ |
where:
- C dose was the alum dose
- Q FCM was the alum flow rate
- C stock was the chemical stock concentration
- Q plant was the plant flow rate
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