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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Maintain Well Settling Sludge<br />
Two types of selectors provided:<br />
Anaerobic selector <strong>at</strong> Zones 1 and 2<br />
Aerobic selector <strong>at</strong> Zone 6<br />
RAS<br />
1 2 3 4 5 6 7<br />
65% 35%<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 />
Encourages PAO growth to<br />
remove soluble BOD<br />
anaerobically.<br />
Pipe Bridge<br />
Small, baffled zone cre<strong>at</strong>es<br />
high F:M, encouraging rapid<br />
uptake and storage of soluble<br />
BOD by heterotrophs<br />
Anaerobic<br />
Anaerobic/aerobic swing<br />
Aerobic<br />
21
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