Clean Water Oxygen Transfer Testing

This 70-minute webinar examines the ASCE Standard for the Measurement of Oxygen Transfer in Clean Water and its role in determining lagoon aeration efficiency. We’ll cover why and how the test is performed and its relevance in aeration system design. You’ll also learn how to apply a critical eye to manufacturers’ efficiency claims.

  • Why conduct Clean Water testing? What testing data reveals about aerator performance
  • What is the ASCE testing process? About the standard; how clean water testing is performed
  • Aeration technologies: comparison of clean water testing performance of different aerator types
  • Clean Water testing as a basis for aeration design: calculation of SOTE and SAE, power demand, aerator placement; the alpha factor
  • A grain of salt: evaluating manufacturers’ efficiency claims; how the ASCE test can be gamed

0:00 Introduction
5:00 Importance of biological treatment
7:30 Biological metabolism
10:10 Respiration vs Fermentation
13:15 Environmental Factors: aerobes vs anaerobes; facultative vs obligate;temperature; pH
18:20 Nutrient Requirements: macronutrients, micronutrients
21:05 Heterotrophs vs Autotrophs
23:15 Growth Kinetics and Biological Treatment Efficiency
26:00 Meet the Bugs
26:25 BOD Eating Bacteria — Heterotrophs: Free floating, floc forming, filamentous
29:30 Sludge Digesting Microbes
33:00 Algae
34:45 Nitrification
39:20 Denitrification
42:00 Higher Life Forms
43:00 Diagnosis with Bacteria
46:15 Wet Testing
49:55 Bioaugmentation
52:00 Questions and Answers
1:08:16 Q&A

Approved for 1 continuing education hour in Alaska, California, Colorado, Idaho, Illinois, Indiana, Louisiana, Maine, Missouri, Montana, and Ohio with the successful completion of the quiz and verified attendance. Likely accepted in states that do not preapprove CEUs, such as Alabama and South Carolina. Eligible for PDH credit in all states.

About the instructor

Braden Galbreath - O’Leary is a lagoon specialist for Triplepoint Environmental, a company dedicated to providing cutting edge and cost effective solutions for wastewater lagoons across North America. After graduating from the University of Notre Dame, Braden began his career with Sheaffer & Roland, a civil engineering firm focused on the design, build, and operation of wastewater treatment lagoon systems. He joined Triplepoint, based in Oak Park, IL, in 2007, and has since worked with hundreds of lagoon owners to help extend the life of lagoon systems, improve efficiency, expand capacity, and meet new effluent requirements.