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...

Increase DO in a Bioreactor with Hydrogen Peroxide & GPS-X Simulation

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

Best Books

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

Nitrogen Testing and Alkalinity Control

In this post I focus on aspects of laboratory testing and plant operation that relate to nitrification, a topic I am endlessly fascinated...

Estimating RAS TSS

Introduction In this post I'm going to discuss how you can estimate the solids concentration in the return activated sludge (RAS) using...

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