

10 State Standards
Wastewater Standards These well-known and reliable wastewater standards have changed slowly over the years, getting updates as needed to...
Sep 29, 20161 min read


Key ATP Terms
Adenosine Triphosphate (ATP) Testing ATP testing is an advanced analysis for thoroughly evaluating a biological treatment system. Because...
Sep 27, 20162 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


ASTM OUR Standard Withdrawn
Much to My Dismay! I am a strong advocate for the use and value of oxygen uptake rate (OUR) testing. I find this simple procedure to be...
Aug 9, 20162 min read


International Water Association
Join the IWA The International Water Association (IWA) is a water/wastewater organization I highly recommend you join. As a member you...
Jul 3, 20163 min read