Working with What You Have: Optimizing Secondary Treatment Performance in Existing Plants

Sipping Kilowatts in Napa County, Facility Improvements Reduce Operational Costs

Thursday, April 19
1:40 PM - 2:30 PM
Location: Meeting Room 313, Sacramento Convention Center

SWRCB Wastewater: 0.1 CEU

CWEA: 1 Contact Hour

Practice Area: Professional Challenge Area: Plant Operations – Challenges and Opportunities

Since aeration can account for approximately 60% of all electricity consumed at a resource recovery facility, utilities need to implement a holistic approach for selecting and implementing new aeration systems. In this session, attendees will discover tools for selecting and implementing an efficient aeration system demonstrated through real-world examples.

Learner Outcomes:

Level: Intermediate; working knowledge of subject matter / journeyman level staff

Bryce Dan

Principal Engineer


Bryce Danker is a wastewater process engineer with Hazen and Sawyer.
Bryce has over 5 years of water and wastewater treatment expereince, with extensive work biological process modeling, pilot plant startup and operation, MBR design and procurment, oxygen transfer testing, aeration system design and startup, wastewater facility master planning, and process controls and optimization.
He has a Bachelors Degree in Civil Engineering from the California Polytechnic University, Pomona, and a Masters Degree in Environmental Engineering from the University of California, Irvine.


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Jim Keller


Jim Keller – Jim is the Operations Services Director for the Napa Sanitation District. He has 37 years’ experience in wastewater treatment and is a Grade V Certified Operator with the State Water Resources Control Board. During his years managing wastewater facilities Jim has been involved with several energy savings projects including a PSA to VPSA conversion in Southtowns Agency’s High Purity Activated sludge system in Erie County New York, Dissolved Oxygen Control system in Buffalo New York which was 50% funded by New York State Energy & Research Association and shaved 3.8 M kWhs off their electric bill.


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Matt Kallerud

Carollo Engineers


Matt Kallerud has 5 years of experience in water and wastewater treatment planning, design, construction & startup. He holds a M.S. in Civil & Environmental Engineering from the University of California, Davis and a B.S. in Mechanical Engineering from Milwaukee School of Engineering. His areas of interest include wastewater process modeling, aeration system design, biological nutrient removal, and treatment process startup. He is actively involved with CWEA San Francisco Bay Section's Student and Young Professionals Committee as well as with Carollo's annual workplace giving campaign.


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Justin Irving


Mr. Irving is a licensed professional engineer and a Principal Engineer at Hazen's San Francisco office. He graduated from the University of Pennsylvania with a degree in Chemical Engineering and has worked in the wastewater industry for over ten years. His primary focus areas include wastewater process modeling, aeration, biosolids, pumping, start-up, instrumentation, and controls.


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Allan Briggs


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Irene Chu


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Marc Solomon


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