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Description: Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and...
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance
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Description: Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and...
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance

Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance

Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance

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Description: Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and...
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance
Abstract
Ultraviolet (UV) disinfection systems that were installed in the 1990’s and early 2000’s are approaching or have surpassed their projected equipment life; 15 to 20 years. Experience tells us that UV systems, depending upon make, model, and design approach, are typically replaced between 12 and 25 years of operation. Some early model UV systems installed in the mid-1990’s are still in operation and going strong, while many others have been or are being replaced. The question we ask is this, why do some UV systems far exceed their life expectancy?This paper will review a case study in Santa Fe, New Mexico where the installed UV equipment was reliably meeting the plant’s permit limits with minimal issues for approximately 20 years but is now experiencing some challenges. The Santa Fe UV system was evaluated to help determine the cause and rectify any operational and maintenance issues.The lessons learned are outlined and are applicable to all other wastewater and water reuse UV facilities, extending the lifetime of older UV systems. These lessons will help optimize the operation of any UV disinfection system and decrease the system’s operation and maintenance costs (electrical, replacement parts and O&M labor) while still ensuring compliance with the plant’s permit limit.
Ultraviolet (UV) disinfection systems that were installed in the 1990’s and early 2000’s are approaching or have surpassed their projected equipment life; 15 to 20 years. Experience tells us that UV systems, depending upon make, model, and design approach, are typically replaced between 12 and 25 years of operation. Some early model UV systems installed in the mid-1990’s are...
Author(s)
Bill SotirakosNicola FontaineAndrew SalvesonKeith BourgeousAlan MacGregorJeffrey Blaine
SourceProceedings of the Water Environment Federation
Subject510 UV Disinfection: Dealing With the Old, Looking Forward to the New
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2018
ISSN1938-6478
SICI1938-6478(20180101)2018:9L.4191;1-
DOI10.2175/193864718825139249
Volume / Issue2018 / 9
Content sourceWEFTEC
First / last page(s)4191 - 4209
Copyright2018
Word count219
Subject keywordsDisinfectionUVultravioletwastewaterreusefiltrationparticle size distributionUV system evaluationUV system operation and maintenanceUV system

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Description: Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and...
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance
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Description: Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and...
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance
Abstract
Ultraviolet (UV) disinfection systems that were installed in the 1990’s and early 2000’s are approaching or have surpassed their projected equipment life; 15 to 20 years. Experience tells us that UV systems, depending upon make, model, and design approach, are typically replaced between 12 and 25 years of operation. Some early model UV systems installed in the mid-1990’s are still in operation and going strong, while many others have been or are being replaced. The question we ask is this, why do some UV systems far exceed their life expectancy?This paper will review a case study in Santa Fe, New Mexico where the installed UV equipment was reliably meeting the plant’s permit limits with minimal issues for approximately 20 years but is now experiencing some challenges. The Santa Fe UV system was evaluated to help determine the cause and rectify any operational and maintenance issues.The lessons learned are outlined and are applicable to all other wastewater and water reuse UV facilities, extending the lifetime of older UV systems. These lessons will help optimize the operation of any UV disinfection system and decrease the system’s operation and maintenance costs (electrical, replacement parts and O&M labor) while still ensuring compliance with the plant’s permit limit.
Ultraviolet (UV) disinfection systems that were installed in the 1990’s and early 2000’s are approaching or have surpassed their projected equipment life; 15 to 20 years. Experience tells us that UV systems, depending upon make, model, and design approach, are typically replaced between 12 and 25 years of operation. Some early model UV systems installed in the mid-1990’s are...
Author(s)
Bill SotirakosNicola FontaineAndrew SalvesonKeith BourgeousAlan MacGregorJeffrey Blaine
SourceProceedings of the Water Environment Federation
Subject510 UV Disinfection: Dealing With the Old, Looking Forward to the New
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2018
ISSN1938-6478
SICI1938-6478(20180101)2018:9L.4191;1-
DOI10.2175/193864718825139249
Volume / Issue2018 / 9
Content sourceWEFTEC
First / last page(s)4191 - 4209
Copyright2018
Word count219
Subject keywordsDisinfectionUVultravioletwastewaterreusefiltrationparticle size distributionUV system evaluationUV system operation and maintenanceUV system

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Bill Sotirakos# Nicola Fontaine# Andrew Salveson# Keith Bourgeous# Alan MacGregor# Jeffrey Blaine. Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2019. Web. 2 Jul. 2025. <https://www.accesswater.org?id=-300105CITANCHOR>.
Bill Sotirakos# Nicola Fontaine# Andrew Salveson# Keith Bourgeous# Alan MacGregor# Jeffrey Blaine. Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2019. Accessed July 2, 2025. https://www.accesswater.org/?id=-300105CITANCHOR.
Bill Sotirakos# Nicola Fontaine# Andrew Salveson# Keith Bourgeous# Alan MacGregor# Jeffrey Blaine
Let There be UV Light - The Resurrection of Old UV Systems Through Evaluation and Maintenance
Access Water
Water Environment Federation
January 18, 2019
July 2, 2025
https://www.accesswater.org/?id=-300105CITANCHOR