Demonstration of a Vortex Technology for Wastewater Disinfection with UV Light


SCH Number
Public Agency
California Energy Commission
Document Title
Demonstration of a Vortex Technology for Wastewater Disinfection with UV Light
Document Type
NOE - Notice of Exemption
Document Description
UC Davis will demonstrate an alternative UV treatment system that will eliminate the problems with traditional UV systems. Traditional UV treatment use modules with arrays of UV Mercury lamps placed in wastewater flowing through a channel. The modules require heavy lift equipment, and the UV bulbs transmissivity declines due to fouling from direct contact with the wastewater. The proposed alternative technology consists of creating a strong vortex inside a vertical tube, where the water will swirl upward around a core of air. The UV lamps (Mercury or Xenon) are outside the tube, eliminating fouling problems.

Contact Information

Paul Roggensack
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15306 - Class 6
Reasons for Exemption
Basic data collection, research, experimental management, and resource evaluation activities that do not result in major disturbances to an environmental resource.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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