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

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

Primary and Secondary Clarifiers This page provides information on the expected performance of primary and secondary clarifiers. Removal...

Oil-Water Separation Though municipal wastewater treatment plants have to deal with their share of oil and grease (O&G), this post on...

Details on how to use a lab-scale dewatering filter press.

Benchtop Belt Filter Press As I've discussed elsewhere in this blog, I have two key pieces of laboratory/field equipment that I use to...

Three Sludge Dewatering Units The data presented on this page comes primarily from two sources as follows: 1. An excellent textbook...

The Water We Use When I travel I seldom give much thought to the water I drink, cook with, and bathe in. But there are occasions when...

pH and Alkalinity Relationships The following two graphics are intended to provide a handy reference describing pH and alkalinity...

Some Frustrations! I travel from one water or wastewater treatment plant to another, week after week, happily (usually) doing my job. And...

Informative EPA Fact Sheets The United States Environmental Protection Agency (EPA) does an excellent job of assembling and posting...

Wastewater Standards These well-known and reliable wastewater standards have changed slowly over the years, getting updates as needed to...