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...

Dec 28, 20234 min read

I tend to go back and forth in my view of just how different industrial wastewater treatment is from municipal treatment. I used to be...

Apr 12, 20214 min read

For me, always traveling, always working at different sites, having to ship lab equipment and set up under less than ideal conditions, I...

Apr 12, 20214 min read

Turbidity is defined as the degree to which light is scattered by particles suspended in a liquid. The measured turbidity depends on the...

May 10, 20205 min read

The organic strength of wastewater is measured in three ways: 1) as 5-day biochemical oxygen demand (BOD5), 2) chemical oxygen demand...

Feb 11, 20191 min read

The following is quoted from W. Wesley Eckenfelder, Jr. in his excellent textbook “Industrial Water Pollution Control”, Third Edition,...

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...