Cell Generation Time

Bacteria are amazingly complex, even though each is comprised of only a single cell. Bacteria make up about 95 percent of all the...

Influent Wastewater Characteristics

This post will provide data/tables to give you a starting point when it comes to evaluating influent wastewater characteristics in the...

Introduction Hydrogen peroxide can be used to increase the dissolved oxygen (DO) concentration in an aerobic bioreactor, often referred...

I get asked every now and then about books I think are best for learning more about wastewater treatment. There are many, many excellent...

Nov 6, 20175 min read

Introduction In a recent post I focused on the importance and value of total kjeldahl nitrogen (TKN) testing. That post addressed the...

Nov 3, 20176 min read

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...

Jul 10, 20172 min read

In former days, when I did a lot of polymer-focused jar testing, I had three products in my polymer test kit that I never fully...

May 2, 20172 min read

Three graphics of the nitrogen cycle are shown in this short, simple post. The first graphic below is one of the most common and you will...

May 1, 20176 min read

Testing Equipment for Water, Reverse Osmosis, and Wastewater There are several "sets" of laboratory equipment that are critical for...

May 1, 20171 min read

Composition of a Bacterial Cell There are two formulas used to describe a bacterial cell. Both are discussed below. The most widely used...