Happy Halloween!

It's a scary time of the year! You should be afraid, very afraid. So stay safe my friend and look for what's behind you. Do your best to...

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...

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...

Food-to-Mass (F:M) Ratio

Introduction Before going into a detailed discussion of the F:M (food-to-mass or food-to-microorganism) ratio I want to let you know...

ORP

Oxidation Reduction Potential (ORP) Measuring the oxidation reduction potential (ORP) is such an easy, insightful test to perform, it’s a...

OUR Level 1 Testing

Level 1: Oxygen Uptake Rate—An Introduction Whenever I evaluate a biological treatment system there are two sets of tests I always run:...

Wet Gas Scrubber

Refinery Wet Gas Scrubber This may seem a little odd, perhaps, but there is one unit process in particular that I really enjoy evaluating...

ATP

Adenosine Triphosphate (ATP)—An Introduction I’ve stated previously (OUR Level 1 Testing page) that whenever I evaluate a biological...

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