May 10, 20205 min read
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, 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...
Oct 2, 20197 min read
Seawater Infiltration & Sulfate
Introduction Many wastewater plants suffer capacity loss due to inflow and infiltration. For the majority of municipal treatment plants...
Sep 29, 20198 min read
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, 20198 min read
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, 20192 min read
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, 20195 min read
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...
Feb 11, 20191 min read
Estimating Organic Content
The following is quoted from W. Wesley Eckenfelder, Jr. in his excellent textbook “Industrial Water Pollution Control”, Third Edition,...
Jan 15, 20194 min read
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, 20193 min read
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,...
Jan 2, 201910 min read
Bioaugmentation
Detailed Review of Bioaugmentation Bioaugmentation is the addition of a specially prepared bacterial culture to a bioreactor (aeration...
Nov 18, 20174 min read
Document Downloads
With links to (valuable and informative!?!) portable document format (PDF) files scattered all over this website I thought it might be...
