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Articles

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Vol. 19, Issue 2 • Summer 2017

Action Spectra: A Review

CIE 220:2016 – Characterization and Calibration Method of UV Radiometers

Novel Use of UV-C: Sanitation of Fresh and Fresh-Cut Produce

Panel Discussion: Fighting HAIs and MDROs with UV-C Using Industry, Health Care and Federal Collaboration



Vol. 19, Issue 1 • Spring 2017

Method for the Measurement of the Output of Monochromatic (254 nm) Low-Pressure UV Lamps

Lessons Learned from UV System Performance Audits for Reuse Applications



Vol. 18, Issue 4 • Winter 2016

UV Antimicrobial Devices Used to Combat HAIs in Medical Facilities: Is There a Need to Establish Voluntary Industry Efficacy Standards for Their Use?

Minimizing Collimated Beam Uncertainty



Vol. 18, Issue 3 • Fall 2016

Fluence (UV Dose) Required to Achieve Incremental Log Inactivation of Bacteria, Protozoa, Viruses and Algae

Performance is the Key: How an Initial Failure Turned into Success

Comment on ‘UV Disinfection Induces a VBNC State in Escherichia coli and Pseudomonas aeruginosa’

Development of a Novel Control Philosophy for UV AOPs in S. Korea



Vol. 18, Issue 2 • Summer 2016

World Congress Regulatory Workshop: An Introduction

UV Treatment of Ballast Water: Market, Regulations, Validation Test Methods

Status of EPA Development of New Ambient Water Quality Criteria for Bacteriophage

The Critical Role of UV in Meeting Pathogen and Pollutant Targets for IPR and DPR Applications



Vol. 18, Issue 1 • Spring 2016

Round Robin Test of the IUVA UV Lamp Efficiency Testing Protocol (Revised)

The Importance of Developing a Standardized Procedure for the Operation and Characterization of UV-LEDs



Volume 17, Issue 3 • 2015

Are Antibiotic-Resistant Bacteria a New Challenge to Disinfection?

Testing and Certification of UV for Point of Use (POU) and Point of Entry (POE) Drinking Water Treatment



Volume 17, Issue 2 • 2015

Proposed Testing Protocol for Measurement of UV-C LED Lamp Output

Yikes! What the UVDGM Does Not Address on UV Disinfection

Calculating UV Dose for UV/AOP Reactors Using Dose/Log as a Water-Quality Metric

UV Treatment: A Solution for Small Community Water Supplies?



Volume 17, Issue 1 • 2015

Coming of Age - UV-C LED Technology Update

Balancing Cost-Effectiveness and Conservatism in UV Disinfection Design

Protocol for the Determination of Fluence (UV Dose) Using A Low-Pressure or Low-Pressure High-Output UV Lamp in Bench-Scale Collimated Beam Ultraviolet Experiments



Volume 16, Issue 2 • 2014

Issues and Opportunities with UV-C-based Room Disinfection Products

Comparative Evaluation of the Removal Characteristic of Ibuprofen by UV/H2O2 and UV/S2O82- Processes

Ultraviolet Light Effects on Patulin Mycotoxin in Foods

Is Scale-Up Applicable for Modular UV Chambers in Drinking Water Applications?

Expanding the Role of UV into Ballast Water Treatment



Volume 16, Issue 1 • 2014

UVC-Ultraviolet Air Treatment

The One and Only MS2 UV Dose Response Curve

10 Years of Applied Research to Optimize Pre-Treatment and Post-Treatment of the MP UV/H2O2 Process at Water Treatment Plant Andijk

Influence of Effluent Organic Matter on the Hydroxyl Scavenging Capacity of Wastewater Effluents

Sucralose as a Hydroxyl Radical Probe

Introduction of a Mini-Fluidic Photoreaction System



Volume 15, Issue 3 • 2013

Early Adoption of UV-C Light Emitting Diode Technology for Water Disinfection

Combined Life Cycle Assessment and Life Cycle Costing of UV-based Treatment of Emerging Contaminants

Optimizing efficiency of Low-Pressure Lamp UV Systems

An Insider’s Guide to UV Treatment for Swimming Pools and Spray Pads – Regulations, Technologies, and Configurations



Volume 15, Issue 2 • 2013

Influence of Quartz Glass Properties on UV-Performance of Sleeves for Systems: Working with Medium-Pressure Mercury Lamps

Synergism of Low-Pressure UV and Chlorine for Water Disinfection

Investigation of UV-TiO2 Photocatalysis and its Mechanism on Bacillus Subtilis Spores Inactivation

Define the Optimal Operating Conditions for a UV Reactor Through CFD Simulation



Volume 15, Issue 1 • 2013

UV Disinfection Knowledge Base

Ultraviolet Germicidal Irradiation and Healthcare

Keeping the Chloramine Monster Out of an Indoor Aquatics Center



Volume 14, Issue 4 • 2012

Ultraviolet Germicidal Irradiation in Building Air-Handling Systems: State-of-the-Art

Mobile UV Disinfection: A Bright Spot in the Battle Against Hospital Acquired Infections

Low Wavelength Medium-Pressure UV Disinfection – Communication Update

UV Lamp Temperature Characteristics



Volume 14, Issue 3 • 2012

Early Adoption of UV-C Light Emitting Diode Technology for Water Disinfection

Combined Life Cycle Assessment and Life Cycle Costing of UV-based Treatment of Emerging Contaminants

Optimizing efficiency of Low-Pressure Lamp UV Systems



Volume 14, Issue 2 • 2012

UV LEDs for Disinfection

Wastewater UV Disinfection Systems – Lessons Learned During Performance Testing

SETi and Cascade Designs To Develop Next Generation of Portable Water Purification Systems

A Conversation between NSF and IUVA about NSF’s UV Standards



Volume 14, Issue 1 • 2012

Understanding Evaluation, Testing and Certification of UV Systems for Drinking Water and Recreational Water Treatment

Sensor-Based Control - The Way for Safe, Energy-Efficient UV System Operation

New EPA Guidelines Highlight UV as Part of the Reuse Solution

UV Disinfection – Coquitlam Water Treatment Plant, Metro Vancouver, British Columbia

Shortage of Clean Water Jeopardized Food Production – Water Treatment with Heraeus Noblelight UV Lamps



Volume 13, Issue 4 • 2011

Low Pressure UV Treatment for Barnacle Growth Control Under Open Sea Conditions

Using UV Dose Response for Scale Up of UV/AOP Reactors



Volume 13, Issue 3 • 2011

Drinking Water UV Operation Without On-Line UVT Monitoring: The Default UVT and Sensor Setpoint Approaches to Validation

Medium Pressure UV Treatment of Ballast Water

An Integrated UV/Ozone Reactor With Ozone Generated from the Same UV Lamp

UV Disinfection of Storm Water Overflows and Low UVT Wastewaters



Volume 13, Issue 2 • 2011

Uniform Protocol for Wastewater UV Validation Applications

Balancing Risk versus Benefit in the Selection of Equipment for Portland’s Bull Run UV Disinfection Facility

UV: Not Just for Cryptosporidium Anymore

Application of UV Disinfection to Achieve Enterococci Removal at a Trickling Filter Plant



Volume 13, Issue 1 • 2011

Filtration and UV treatment for ships’ ballast water management – water quality challenges and UV-dose requirements

Inactivation of pathogenic and heat resistant microorganisms in milk by a non-thermal UV treatment system.



Volume 12, Issue 4 • 2010

Bidding, Testing, and Start-Up of a Reuse UV Disinfection System in Florida

Safety of Post-UV Disinfection of Wastewater: Bio-stability in Reuse Water Pipelines

A Smart Way to Validate UV Systems for Reuse Applications

Practical Considerations of Applying UV Technology for Reuse Water Disinfection



Volume 12, Issue 3 • 2010

Development of a Protocol for the Determination of the Ultraviolet Sensitivity of Microorganisms Suspended in Air

Ultraviolet Disinfection Effectively Controls Oilfield Sulfate Reducing Bacteria

UV Disinfection of Water in Horticultural Applications



Volume 12, Issue 2 • 2010

Factors Influencing UV Transmittance in Chemically-Enhanced Primary Treatment Effluents

Influence of Nitrate on UV-degradation of N-nitrosodimethylamine (NDMA)

Effect of pre- and post- UV disinfection conditions on photoreactivation of fecal coliforms from a physicochemical wastewater effluent

UV/Peroxide Oxidation Process for Taste & Odor Control



Volume 12, Issue 1 • 2010

Efficacy of Ultraviolet Advanced Oxidation in a Drinking Water Utility with Full-Scale Granular Activated Carbon Adsorption

Battling Nitrification with Blacklights

UV in Water Treatment Issues for the Next Decade

Comparison of UV Power

Measurement of Low Pressure UV-lamps by a worldwide Round Robin Test

Observational Study of the I2 Air Purge Flush Method for Biofouling Control on UV Lamp Sleeves



Volume 11, Issue 4 • 2009

A Kinetic Model for the Degradation of Natural Organic Matter During the Ultraviolet Hydrogen Peroxide Advanced Oxidation Process

Approach for Achieving Sustainable Operation of the 2-bgd Catskill/Delaware UV disinfection Facility

Effect of UV Radiation on the viability of Cyanobacteria (Blue-green algae)

Novel UV LED Advanced Oxidation System for Disinfection and Removal of Organic and Heavy Metal Contaminants in Water



Volume 11, Issue 3 • 2009

A New Role for UV? Shelf Life Extension of Plant Foods by UV-induced Effects.

Impact of UV Disinfection Combined with Chlorination/Chloramination on the Formation of Nitrogenous Disinfection Byproducts in Drinking Water



Volume 11, Issue 2 • 2009

A Genomic Model for Predicting the Ultraviolet Susceptibility of Viruses

Disinfection Alternatives and Sustainability: Energy Optimization, Disinfection Efficiency, and Sustainability



Volume 11, Issue 1 • 2009

UV Disinfection in Moscow Metro Public Transport Systems

UV/H2O2 Treatment of Drinking Water: Impacts on NOM Characteristics

Application Note

UV in Aquatics: Wellness for the Nose - Breakdown of Chloramines in Public Baths



Volume 10, Issue 4 • 2008

UV/H2O2 Treatment: An Essential Barrier in a Multi Barrier Approach For Organic Contaminant Control

Lagrangian Actinometry’s Role in UV Reactor Validation and Optimization

UV Light for Processing Foods

UVGI for Hospital Applications



Volume 10, Issue 3 • 2008

UV Validation for Wastewater Applications: Is a Uniform Protocol Possible?

UV Process and Fouling Testing at Trickling Filter Plant: Key Factors in UV Design for Trickling Filter Effluent

Biodosimetry of a Full-Scale UV Disinfection System to Achieve Regulatory Approval for Wastewater Reuse



Volume 10, Issue 2 • 2008

Validating, Controlling, and Operating New York City’s Catskill/Delaware UV Water Disinfection Facility

Advanced Oxidation Process Basics and Emerging Applications in Water Treatment

Power Quality for Water Treatment Plants



Volume 10, Issue 1 • 2008

Assessing the Risk of Mercury from Online UV Lamp Breaks

Proposed Method for Measurement of The Output Of Monochromatic (254 Nm) Low Pressure UV Lamps



Volume 9, Issue 4 • 2007

Bioassays for UV Systems - Where do the Risks Start?

Challenges in Implementing Enhanced Disinfection: Negotiating Operational Flexibility for the City of Guelph’s Upgraded Water Supply System

A Guideline for UV Disinfection Against Cryptosporidium in Japan



Volume 9, Issue 3 • 2007

UV Disinfection for Class A Water Recycling

UV Process and Fouling Testing at Trickling Filter Plant: Key Factors in UV Design for Trickling Filter Effluent



Volume 9, Issue 2 • 2007

UV Light Emitting Diodes – Their Applications and Benefits

UV-Disinfection of Drinking Water – the new DVGW Work Sheet 94 Parts 1–3



Volume 9, Issue 1 • 2007

The Final UV Disinfection Guidance Manual: Operations and Maintenance Summary

Lagrangian Actinometry Using Dyed Microspheres – A New UV Validation Method

A State Perspective on the USEPA UV DisinfectionGuidance Manual

The Impacts of the UVDGM on Large Systems

Overview of Validation



Volume 8, Issue 4 • 2006

Quartz Lamp Sleeve Fouling and Cleaning System Evaluation at the Albany, New York, Loudonville UV Treatment Facility



Volume 8, Issue 3 • 2006

UV-Oxidation: Municipal Case Studies and New Applications

UV Equipment Procurement and Bid Document Preparation

Technical Note: Need for a “Normalization” Correction for Cosine Emitter UV Irradiance Models



Volume 8, Issue 2 • 2006

Equivalent Public Health Protection? A Comparison of Chlorine and UV for Disinfection of Reclaimed Water

An Overview of UV-based Advanced Oxidation Processes for Drinking Water Treatment

Five Frequently Asked Questions About UV-Safety



Volume 8, Issue 1 • 2006

Finding the Optimum UV Disinfection Location in a Large Water Treatment Plant

Integrating Ozone and UV Disinfection Processes at the Greater Vancouver Water District’s Coquitlam Source

UV-Lamps for Disinfection and Advanced Oxidation - Lamp Types, Technologies and Applications

UV Dose Required to Achieve Incremental Log Inactivation of Bacteria, Protozoa and Viruses



Volume 7, Issue 4 • 2005

Applications and Efficacy of UV Light for Foods

Mercury-free Vacuum-(VUV) and UV Excilamps: Lamps of the Future?

Ultraviolet Technology in Water Reclamation from Secondary Effluent: A Perspective from the Tropical Environment

Design and Construction of a Large Ultraviolet (UV) Disinfection Facility Treating Unfiltered Water



Volume 7, Issue 3 • 2005

How can IUVA Help Small Water Systems?

Weighted Fluence-Based Parameters for Assessing UV and UV/H2O2 Performance and Transferring Bench-Scale Results to Full-Scale Water Treatment Reactor Models

Accurate Measurement of UV Lamp Output



Volume 7, Issue 2 • 2005

Giardia Contamination of Bergen Waterworks Prompts Quick Implementation Of UV Disinfection System

UV Disinfection of Air: Some Remarks

Drinking Water Regulations and Their Impacts on Small UV Systems

Advanced Oxidation for the Control of Pesticides at the PWN Water Treatment Plant in North Holland

An Update on Optical Radiation Safety in Europe



Volume 7, Issue 1 • 2005

Light and Environmental Chemistry: Influence of Changing Solar UV Radiation on Aquatic Photoreactions

A Specular Model for UVGI Air Disinfection Systems



Volume 6, Issue 4 • 2004

UV SOURCES – Basics, Properties and Applications

Application of UV in North America and USEPA Guidance Manual for UV Disinfection

USA and Europe: Two Different Worlds of UV for Drinking Water Disinfection?

UV Drinking Water Disinfection – Requirements, Testing and Surveillance: Exemplified by the Austrian National Standards M 5873-1 and M 5873-2



Volume 6, Issue 3 • 2004

Cryptosporidium Occurrence in Wastewaters and Control Using UV Disinfection

The History of UV and Wastewater

Fundamentals of Ultraviolet Treatment – Terms and Definitions do Matter!



Volume 6, Issue 2 • 2004

The Stability of Bacteriophage MS2 used in a UV Reactor Validation Study

New York City UV - The Light before the End of the Tunnel

Finished water disinfection with UV light: Overview of validation studies at American Water

Cryptosporidium Risk Analysis and UV Disinfection System Reliability



Volume 6, Issue 1 • 2004

The Influence of Relative Humidity on the UV Susceptibility of Airborne Gram Negative Bacteria

Understanding UV Monitoring for Air and Water UV Treatments

Proposed Standards and Guidelines for UVGI Air Disinfection

Upper Room UV Air Disinfection: Where are we and where are we going?

Application of Medium-Pressure UV for Disinfection in an Air Handling System



Volume 5, Issue 4 • 2003

A Word of Introduction from the UVDGM Special Issue Editor: The Importance of the USEPA’s UV Disinfection Guidance Manual to the Water Industry

An Overview of the Proposed Long Term 2 Enhanced Surface Water Treatment Rule and Stage 2 Disinfectants and Disinfection Byproducts Rule

An Overview of the UV Disinfection Guidance Manual

Comparison of Safety Factor Approaches for UV and Chemical Disinfection

Validation Facilities for Drinking Water UV Systems

Canadian Perspective on UV Drinking Water Disinfection and Impact of the US Environmental Protection Agency UV Disinfection Guidance Manual

The Links Between Water and Wastewater UV Disinfection: The Past, Present and Future

A Compilation of Manufacturers' Perspectives on the Requirements and Recommendations in the UVDGM

A Manufacturer's Perspective on the Requirements and Recommendationsin the UV Disinfection Guidance Manual (UVDGM)

Outside Perspectives: Consultants' Review of the Draft UVDGM

The Water Utility Perspective: LT2 and UVDGM Leave Several Important Issues in the Dark

American Water Works Association Research Foundation's Impacts on the UV Disinfection Regulatory Process



Volume 5, Issue 3 • 2003

Reduction Rates of Pathogens and Fecal Indicators After UV Disinfection at the Bad Tölz (Germany) Wastewater Treatment Plant

Trouble Shooting UV Systems – What to do When the Lights Go Out?

Low- and Medium-Pressure UV Performance Verification



Volume 5, Issue 2 • 2003

New Advances in UV Water Treatment

Efficacy of Low-Pressure Ultraviolet Irradiation for Inactivating Cryptosporidium parvum Oocysts in Turbid Water



Volume 5, Issue 1 • 2003

Applications for Ultraviolet Light to Blood Products

UV Cleaning System Performance Validation

Municipal Wastewater Treatment for Reuse

Validation of Processing Technologies for Juices



Volume 4, Issue 6 • 2002

Factors Affecting the Sizing and Operation of a UV Unit Disinfecting Wastewater

UV Technology Continues to March On for Municipal Wastewater Disinfection in the Americas



Volume 4, Issue 5 • 2002

Pulsed UV to Sterilize Food Packaging and to Preserve Food Stuffs

Effectiveness of UV Disinfection of Juice



Volume 4, Issue 4 • 2002

A Safer Germicidal Ultraviolet Air Disinfection Proposal



Volume 4, Issue 3 • 2002

UV Treatment of a Groundwater Supply – From Piloting to Start-up Experience in the Town of Norfolk, MA

Advanced Oxidation UV Treatment of Organic Pollutants in Drinking Water



Volume 4, Issue 2 • 2002

UV Curing – UV Light as the Energy Source for Industrial Processing of Coatings, Inks and Adhesives



Volume 4, Issue 1 • 2002

Application of a Medium Pressure UV System for the treatment of N-Nitrosodimethylamine (NDMA)



Volume 3, Issue 5 • 2001

UVGI Systems for Air and Surface Disinfection

ANSI/NSF Standard 55 – Ultraviolet Microbiological Water Treatment Systems

Small UV Water Purification Systems



Volume 3, Issue 4 • 2001

Disinfecting Foods with UV Light Processing



Volume 3, Issue 3 • 2001

UV Lamp Validation via a Bioassay Equals Reality

After a 5-Year Study with UV: Chlorine-Free in Karlshamn, Sweden

Addressing Concerns Over Mercury Releases from UV Lamps

Dpse Requirements for UV Disinfection



Volume 3, Issue 2 • 2001

German Dam Association Opts for UV Treatment



Volume 3, Issue 1 • 2001



Volume 2, Issue 6 • 2000

Experiences with UV Disinfection at Helsinki Water

UV Disinfection in New Zealand



Volume 2, Issue 5 • 2000

Differences Between Calculated and Biodosimetrically Measured Fluences in UV Plants for Drinking Water Disinfection – Practical Experiences with the Austrian National Standard M 5873-1

UV Disinfection in Drinking Water Supply

UV Disinfection: Florida's Perspective



Volume 2, Issue 4 • 2000



Volume 2, Issue 3 • 2000

The History of UV Disinfection in the Last 20 Years

Engineering of UV Disinfection Systems for Drinking Water

UV Disinfection for Drinking Water

Knowledge Gaps: Waht is Required for Reliable UV Application?

UV Curing as We Enter the New Millennium

UV Curing – A Major Sector for UV Applications



Volume 2, Issue 2 • 2000



Volume 2, Issue 1 • 2000

The Status of UV Technology in Europe



Volume 1, Issue 3 • 1999

UV Reactor Validation/Certification

Ultraviolet Light Found to be Effective Against Cryptosporidium



Volume 1, Issue 2 • 1999



Volume 1, Issue 1 • 1999

What's New in U.S. UV Action?