How Does It Work? UV Operations and Maintenance

Saturday, October 18, 8:30 am – 5:00 pm
1 day, 0.6 CEUs

All participants in the workshop will need to submit information for a security clearance before they will be allowed to participate in the site visit.  The session will be limited to 25 participants.

This workshop will start with the basics of UV disinfection, including a full review of UV technologies and central components to UV systems. Ultraviolet light transmittance (UVT) directly impacts the cost of UV implementation (efficiency) while the impact of shielding (of UV) from particulates can dramatically reduce disinfection performance (effectiveness). Both of these critical concepts will be addressed through a series of bench-top water quality tests, including particle counting, turbidity tests, UVT testing, and a full demonstration of the impact of chemical addition, flocculation/coagulation, and filtration on water quality.

The demonstration facilities will be described indicating the design criteria, testing protocols, and a description of the UV systems that were selected for piloting.  Each of the manufactures will provide a detailed description of the equipment, flow measurements, control systems, lamp systems, and cleaning systems.  Detailed instruction will be provided on operation and maintenance requirements for each system.  An exercise to help participants recall the information discussed will conclude the morning portion of the workshop. 

Following the lunch break, a field trip will be taken to the Hanover Park Wastewater Treatment Plant to view the four UV systems.  At the site, the group will be divided to allow time at the UV system.  Plant staff will assist manufacture staff in presenting information on each system.  Each system will be removed from service and maintained by the participants.  This will allow for lamps and ballast to be replaced along with the cleaning system.  Controls from each system will be examined by the individual groups.  After the site visit, the workshop participants will board a bus and return to McCormick Place.  During travel time to and from Hanover Park, information from additional UV vendors will be presented to the participants.

Chair
Brian D. Clow, Carollo Engineers

Co-Chair
Gary L. Hunter, Black & Veatch

Speakers
Andrew T. Salveson, Carollo Engineers
Beata Busza, Metropolitan Water Reclamation District of Greater Chicago
Allen Gates, Trojan Technologies, Inc.
Oliver Lawal, WEDECO
Duncan McCloud, Severn Trent Services