ModelRisk

Estimating Oxygen Demand in a Bioreactor Using Monte Carlo Simulations from ModelRisk Introduction In this post I am going to focus on a...

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...

Increase DO in a Bioreactor with Hydrogen Peroxide Hydrogen peroxide can be used to increase the dissolved oxygen (DO) concentration in...

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

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

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

For me, always traveling, always working at different wastewater treatment plants, having to ship, literally, hundreds of pounds of lab...

Apr 12, 20214 min read

The organic strength of wastewater can be measured in three ways: 1) as 5-day Biochemical Oxygen Demand (BOD5), 2) Chemical Oxygen Demand...

May 10, 20205 min read

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

Feb 11, 20191 min read

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