Advanced Oxidation for Potable Reuse: It Has to Be Pure

UV/HOCl AOP Evaluation at 1MGD Demonstration Pure Water Facility

Wednesday, April 18
2:00 PM - 2:50 PM
Location: Meeting Room 309/310, Sacramento Convention Center

SWRCB Drinking Water: 1 Contact Hour

SWRCB Wastewater: 0.1 CEU

CWEA: 1 Contact Hour

Practice Area: Team Challenge Area: Water Reuse Operations & Technology

Since June 2011, San Diego has been operating and testing one million gallon per day demonstration potable reuse facility. This presentation focuses on the on-going evaluation of the UV/HOCl AOP, which has been in operation since May 2016. Findings from recently completed projects will be presented with focus on AOP performance and UV/AOP product water quality.

Learner Outcomes:

Level: Advanced; extensive knowledge of subject matter / senior level staff

Aleks Pisarenko

Supervising Engineer
Trussell Technologies, Inc.


Aleks has over 8 years of experience working in water reuse field and is a Grade III Wastewater Operator in California. Aleks Pisarenko received B.S. in Chemistry from York College of Pennsylvania and Ph.D. in Chemistry from Miami University. Aleks has been directly responsible for operation, maintenance and testing of the City of San Diego’s 1 MGD Demonstration Pure Water Facility since early 2013. Aleks also trained operators on operating and maintaining Advanced Water Treatment processes such as Ozone, Biological Activated Carbon Filtration, Membrane Filtration, Reverse Osmosis, and Ultraviolet Light Advanced Oxidation Process.


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Ayman Shawwa

Senior Project Manager - Water Reuse
Mott MacDonald


Ayman Shawwa, P.E., Ph.D., BCEE, PMP

Dr. Shawwa is Senior Project Manager and Water Reuse Expert with Mott MacDonald, Pleasanton, CA. He has more than 25 years of engineering and project management experience working on projects covering drinking water treatment, tertiary wastewater treatment for recycled water, and advanced water treatment for potable reuse applications. Ayman has BS in Civil Engineering from Kuwait University, MS in Environmental Engineering from University of Maryland, College Park, and PhD in Environmental Engineering from University of Alberta. Ayman is a registered Civil Engineer in California and Board Certified Environmental Engineer as well as Project Management Professional.


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UV/HOCl AOP Evaluation at 1MGD Demonstration Pure Water Facility

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