- May 10, 2020
- 5 min
BOD, COD, and TOC
The organic strength of wastewater is measured in three ways: 1) as 5-day biochemical oxygen demand (BOD5), 2) chemical oxygen demand...
- May 10, 2020
- 7 min
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...
- Oct 2, 2019
- 7 min
Seawater Infiltration & Sulfate
Introduction Many wastewater plants suffer capacity loss due to inflow and infiltration. For the majority of municipal treatment plants...
- Sep 29, 2019
- 8 min
GSA, MCRT, SRT, and Sludge Age
GSA, MCRT, SRT, and Sludge Age Defined I think there is confusion, sometimes, in how operators (which includes me) define the terms mean...
- Sep 10, 2019
- 8 min
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...
- Jul 31, 2019
- 2 min
Informational Graphics and Other Things
Bits and Pieces of Information When I come across information related to water and wastewater topics, information that I'm not yet...
- Jul 30, 2019
- 3 min
Best Books
Recommended Wastewater Treatment Textbooks I get asked now and then what the best books are for learning more about wastewater treatment....
- Feb 11, 2019
- 1 min
Estimating Organic Content
The following is quoted from W. Wesley Eckenfelder, Jr. in his excellent textbook “Industrial Water Pollution Control”, Third Edition,...
- Jan 15, 2019
- 4 min
Just the Formulas
The Math You Need, When You Need It Temperature Conversion To convert from degrees F to degrees C or vice versa you can use the following...
- Jan 12, 2019
- 3 min
Phenol Oxidation
A lot of my work is with high-strength industrial wastewater. Issues that arise with any given industrial waste stream may consist of,...
