Tag Archives: aeration

Aeration

Aeration in wastewater treatment is the process of adding oxygen to the wastewater through the use of mechanical aerators or defused aeration. This provides mixing action in the reactor basin to keep the solids in suspension. It also brings the … Continue reading

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Equalization Basins

Equalization basins are used to smooth out wide variations in flow so that a constant or nearly constant flow rate can be achieved. Flow equalization improves the performance of the downstream processes and can reduce the size, number and cost … Continue reading

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Sludge Wasting

How do I waste sludge from my package treatment plant? I am routinely asked this question by operators who don’t have digesters, thickeners or holding tanks and depend on haulers of septic waste. To waste sludge from a package treatment … Continue reading

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Sludge Age vs. Solids Retention and Mean Cell Residence Time

An age old debate of sludge wasting can become a long one. As I was doing some research on this topic, I found some interesting facts, circumstances and scenarios surrounding the issue. The very first obstacle that I encountered was … Continue reading

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Phosphorus Removal Via Oxidation Ditches

In an earlier post I mentioned changing the aeration setup at your facility to remove phosphorus. In this post, I will use the example of an oxidation ditch to expand further upon alternative aeration techniques. An oxidation ditch (OD) is … Continue reading

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