To Nitrify or Denitrify?

A training session on nitrogen removal turns into a troubleshooting venture that helps a plant team correct operating issues and achieve permit compliance.
To Nitrify or Denitrify?
FIGURE 1: A properly operating anoxic basin is gently blended with no aeration.

The Lab Detective was asked to provide some informal training about nitrogen removal in wastewater treatment plants, including a discussion of the various flow schemes used to remove nitrogen from the waste stream and return it to the atmosphere.

Always one to oblige, the...

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