Right from the Start: Innovation in Primaries

Primary Clarifier Modeling Success Story

Wednesday, April 18
10:00 AM - 10:25 AM
Location: Meeting Room 313, Sacramento Convention Center

SWRCB Wastewater: .05 CEU

CWEA: .5 Contact Hours

Practice Area: Team Challenge Area: Nutrient Management and Removal

This session will discuss a primary clarifier pollutant removal model implemented at the San Jose-Santa Clara Regional Wastewater Facility. This model was based on 4-years of historical data and then verified through two full-days of field testing. A similar model was developed at 5 other plants and comparisons will be drawn between each application of the model.

Learner Outcomes:

Level: Introduction to; limited knowledge of subject matter / entry level staff


Seppi Henneman

Brown and Caldwell


Seppi Henneman got his BS and MS in Civil and Environmental Engineering from Cal Poly San Luis Obispo. He has worked at Brown and Caldwell for 6 years as a wastewater process engineer. He has performed stress testing to help identify capacity of various processes throughout the wastewater treatment process including primary clarifiers, aeration basins, secondary clarifiers, and tertiary filters. This is the fourth and largest primary clarifier stress test that he has been involved with.


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Onder Caliskaner

National Technologist
Kennedy Jenks Consultants


Dr. Caliskaner has 22 years of experience in wastewater treatment industry. He is a principal and national technologist at Kennedy/Jenks consultants providing services in research and technology development, project and program management, process engineering and evaluation, and planning. His main research and engineering focus areas include: tertiary and primary filtration, advanced primary treatment, carbon diversion, and process modeling. He holds a Ph.D. degree in Civil and Environmental Engineering from the University of California at Davis, MS degree from the University of Illinois at Urbana-Champaign, and BS degree from METU Technical University Ankara/Turkey. He is a registered Civil engineer in California.


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Primary Clarifier Modeling Success Story


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