Oxidation Ditch
Oxidation ditches are most often used to treat municipal wastewater, but I do come across this activated sludge configuration in the...
Aug 305 min read
Rules of Thumb—Aeration
I have random information about aeration scattered across my wastewater blog pages but I've been getting questions from people who need...
Aug 271 min read
ModelRisk
Estimating Oxygen Demand in a Bioreactor Using Monte Carlo Simulations from ModelRisk Introduction In this post I am going to focus on a...
Jul 68 min read
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...
Apr 30, 202211 min read
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...
Apr 3, 20215 min read
GPS-X
Increase DO in a Bioreactor with Hydrogen Peroxide Hydrogen peroxide can be used to increase the dissolved oxygen (DO) concentration in...
May 25, 20207 min read
Rules of Thumb—Wastewater Treatment
Some Simple Guides This post provides tips and insights I've come across focused on wastewater treatment topics. A search on Google for...
May 10, 20208 min read
Wastewater Temperature
Wastewater Temperature in the Bioreactor Operators know that when the temperature of the wastewater entering the bioreactor is too high,...
Sep 25, 20169 min read
Activated Sludge Design Tables
Activated Sludge Design and Process Control Parameters Below is a handy chart from the well-known Metcalf & Eddy handbook (Metcalf &...
Sep 5, 20161 min read
