Maximizing Secondary Wet Weather Treatment Capacity at ... - pncwa
Maximizing Secondary Wet Weather Treatment Capacity at ... - pncwa
Maximizing Secondary Wet Weather Treatment Capacity at ... - pncwa
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Decision to Shift Oper<strong>at</strong>ing Mode is Intuitive<br />
The maximum flow r<strong>at</strong>e to Zone 1 is also an oper<strong>at</strong>or set point. Excess flow is<br />
autom<strong>at</strong>ically directed to Zone 6 of each basin.<br />
So, oper<strong>at</strong>ors don’t need to initi<strong>at</strong>e the change to wet we<strong>at</strong>her step feed.<br />
Shift to Step Feed with RAS Storage is manually initi<strong>at</strong>ed but<br />
autom<strong>at</strong>ically executed<br />
RAS<br />
Adjustable set point<br />
1 2 3 4 5 6 7<br />
Remaining Flow<br />
To <strong>Secondary</strong><br />
Clarifiers<br />
RAS<br />
1 2 3 4<br />
5<br />
6<br />
7<br />
To <strong>Secondary</strong><br />
Clarifiers<br />
Aerobic RAS Storage<br />
Primary Effluent<br />
Pipe Bridge<br />
Anaerobic<br />
Anaerobic/aerobic swing<br />
Aerobic<br />
27
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