Does my dissolved oxygen (DO) have to be 2.0 mg/L in the aeration basin? Can I save on electricity costs by lowering DO targets?
Most wastewater systems I have visited target dissolved oxygen (DO) residuals in the aeration basin above 2.0 mg/L - in fact most industrial customers run at 3 - 3.5 mg/L if possible. As energy or electricity costs for aeration are a major part of the operational costs - this has led me to question the wisdom of a "one size fits all" number for dissolved oxygen. In researching this question, I have found some interesting data and I will share some of the information with you.
Erik Rumbaugh has been involved in biological waste treatment for over 20 years. He has worked with industrial and municipal wastewater facilities to ensure optimal performance of their treatment systems. He is a founder of Aster Bio (www.asterbio.com) specializing in biological waste treatment.
Click to set custom HTML