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November 6, 2017

Introduction

In a recent post I focused on the importance and value of total kjeldahl nitrogen (TKN) testing. That post addressed the need to run the full gamut of nitrogen tests which include TKN, ammonia, nitrate, and nitrite, the sum of which equate to the total nitrogen concentration as illustrated in Figure 1. In this post I want...

November 3, 2017

Introduction

After all the many years I've been working in water and wastewater treatment it's really just this past year that I have come to better appreciate the value and importance of measuring the total kjeldahl nitrogen in addition to the ammonia nitrogen concentration entering and leaving industrial biological treatment systems....

May 2, 2017

The nitrogen cycle and other graphics are shown here. These graphics are intended to inform those who operate (or need to know about) nitrifying wastewater treatment systems. The first graphic below is one of the most common and you will come across this in several different textbooks.

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