FEATURES Articles: o Applicationsand Efficacy of UVLight for Food o Mercury-freeVacuum-(VUV) andUV Excilamps o UltravioletTechnology in WaterReclamation UV Reactors and Headers at the Water TreatmentPlant in\4ctoria, BC o Designand Construction of a LargeUltraviolet | (UV) ^ DisinfectionFacility /avn\; TreatingUnfiltered Water F, .i i-1++++ \.U// : I i+*I JoinIUVA! I onlineat ii;'**r*'iuva'org Barrier dischargesin an "excilamp" tfre NewStandird in WastewaterD'isinfection Followingthe successof the C3 l5O'",Calgon Carbon Corporation's UV Technologies Divisionis launchingthe newestaddition to the C3Series* wastewater disinfection productline - the C35OO'". With powerfulyet energy-efficient 500 Watt lamps, it c3 500* is designedfor the mostchallenging high-flow municipal wastewater applications." MakingWater and Air Saferand Cleaner wwwcaI gonca rbon'Gom/uv UVTechnologies Division Calgon- Carbon Corporation, 800-422-7266 Contents Index of Advertisers 4 President's Message 30 American Air & Water 4 Editorial 20 American Ultraviolet 9 Atlantic Ultraviolet 5 Hot UV News Inside Front Cover Calgon Carbon 5 UV Industry News 7 CDM 6 News from IUVA 10 Dr. Gröbel 7 Application Note 15 ETA plus 8 Conference Report: First Mid-East Conference 8 Hazen and Sawyer on Ultraviolet Technologies 30 Light Sources 9 Water is Cheap – Ridiculously Cheap! Back Cover Philips Inside Back Cover Trojan UV 30 UV Systec ARTICLES: 11 Applications and Efficacy of UV Light for Foods Tatiana Koutchma and Cindy Stewart 16 Mercury-free Vacuum-(VUV) and UV Excilamps: Lamps of the Future? Thomas Oppenländer and Edward Sosnin 21 Ultraviolet Technology in Water Reclamation from Secondary Effluent: A Perspective from the Tropical Environment Rongjing Xie Editor in Chief: Dr. James R. Bolton 26 Design and Construction of a Large IUVA News (print version) (ISSN 1528-2017) is Ultraviolet (UV) published quarterly by the International Ultraviolet Sean Bolongaro, Peter Malone, and Ian Association, Inc. (IUVA) and is provided free to IUVA Wright Members. Editorial Office: Department of Civil and Environmental Engineering, University of Alberta EDITORIAL BOARD Edmonton, AB, Canada, T6G 2G8 Tel: 780-439-4709; Fax: 780-439-7792; James P. Malley, Jr., Ph.D. Univ. of New Hampshire Email: [email protected]. Keith E. Carns, Ph.D., P.E., EPRI, CEC For IUVA membership information, go to the Christine Cotton, P.E., Malcolm Pirnie IUVA Web Site http://www.iuva.org/ Thomas Hargy, P.E., Clancy Environmental Consultants or contact Kathy Harvey (see below) Marc LeChevallier, American Water For advertising in IUVA News, contact Yvaine Schulz ([email protected]) Karl G. Linden, Ph.D., Duke University Tel: 303-690-8377 Sam Jeyanayagam, P.E., Ph.D., DEE, Malcolm Pirnie For other IUVA matters contact: Bruce A. Macler, Ph.D., U.S. EPA Dr. James R. Bolton, Executive Director Rip Rice, Ph.D., Rice International Consulting Enterprises ([email protected]) or Kathy Harvey G. Elliott Whitby, Ph.D., Calgon Carbon Corporation Administrative Assistant ([email protected]) at the International Headquarters Office, PO Box 1110, Harold Wright, Carollo Engineers Ayr, ON, Canada N0B 1E0 Tel: 519-632-8190; Fax: 519-632-9827. Printed by Quality Color An RR Donnelley Company IUVA’s Web Page: www.IUVA.org DECEMBER 2005 | 3 A Message from the President Editorial By Jim Bolton It was a good year! Editor-in-Chief Andreas Kolch I had the honor to represent IUVA (along with Regina Coming back from our first International Symposium in Beijing Sommer from Austria, Rick Sakaji from the US, and our board meeting in Quebec City, I can see that we are well Christopher Yu from Hong Kong and Brian Petri from underway to turn our association into a true international group, Canada) at the UV Conference held in Beijing at the with a solid base in the US. While this base is the backbone of our end of October. It was exciting to see over 150 dele- activities, with strong support on workshops and other activities, gates so enthusiastic and hungry for UV information. we meanwhile face a good interest in other regions of the world. Almost all UV applications in China are for the disin- This momentum is a strong one. The member network continues to fection of wastewater. I asked why there was so little grow globally, and we should all be proud to be part of an evolu- interest in UV disinfection of drinking water – I was tion like that. The IUVA will help to get the UV-story across the told this was of relatively low priority because no one planet. If we look back, where we started, this can be considered drinks the “drinking water” in China! I was also told to be a successful development. that China is developing a new set of regulations for Another good sign was the lively, but conclusive discussion that the UV disinfection of wastewater. we will follow our IOA colleagues from Boston to Los Angeles for Also in Beijing, I had the honor to be present when the the congress in 2007. The support for the congress in LA will be Disinfection Research Center was officially opened at much stronger, and thus it will be a much lower risk for both of us Tsinghua University (China’s top engineering univer- to move forward with our joint congress. sity). This center is jointly funded by Trojan Also looking forward: an interesting opportunity which came Technologies and the Chinese Ministry of along is the opportunity to cooperate with RadTech international Construction. The first Director of this new Center is on a shared service basis. Most of you know that Jim Bolton will Prof. Wenjun Liu. resign as the Executive Director after the congress in 2007. This As Andreas has indicted in his message, we are nego- could be a very interesting alternative, which Jim will investigate tiating with Radtech International in regard to possi- very carefully within the next weeks and months. bly sharing administrative services. Radtech repre- On the President Elect side of things, I am glad to announce that sents those interested in UV curing of inks and coat- we have currently found two candidates who are willing to serve ings, and is an organization about the same size as as the President starting in 2007. As soon as we can, we will start IUVA. I think that if both organizations can work the election process and have a confirmed vote; Jim will inform all together to develop a common administrative struc- of you. tures (at least in certain areas, such as membership administration and publication of magazines), there The financials are still an issue, but we have talked a lot about could be significant savings for both organizations. financials within the last three months; I think we now have a solid budget for 2006 and for the 2007 Congress. The Executive We continue to receive high quality articles, as this Operating Committee (EOC)’s and Jim’s priority is clearly the issue demonstrates. If you would like to write an arti- handover of a healthy and sound financial statement in 2007, cle, or can recommend someone who should write an which will allow IUVA to continue and improve its service to the article for IUVA News, please let me know increasing membership base. ([email protected]) and I’ll send the “Instructions to Authors”. In the last issue of IUVA News this year I would like to thank Jim and Kathy, the EOC, the board of directors and all members for Let me end this message with a “Happy Holidays” to their continuous will to support, help and faith for IUVA. I wish all all wherever you are. 2006 looks bright for IUVAwith of you all the best and a Happy New Year. There will hopefully be many new developments. plenty of occasions where we can see each other again in 2006. Starting with the outlook in the beginning of my message, I hope that – looking back – everyone can say that it was a good year. 4| IUVA NEWS, Vol. 7, No. 4 Hot UV News UV Industry News The following are some of the more interesting items from The following are some of the more interesting items from the UV News page on the IUVA Web Site the UV Industry Announcements page on the IUVA Web (http://iuva.org/public/uv_news.htm). Most of these items Site (https://secure.nelixstore.com/iuva/public/uv_indus- have been provided by IUVA Board Member, Joan try_announcements.htm). Oppenheimer, from MWH Applied Research Dept. in 2 November 2005: Trojan Technologies Wins New York Pasadena, CA who has volunteered to help with selecting City Drinking Water UV Project. Trojan Technologies items for UV News. Thank you, Joan! Inc. announced today that it has been selected by the New York City Department of Environmental Protection 6 December 2005: Valencia-based Aquafine Sells to ("DEP") to be the supplier of ultraviolet ("UV") drinking Colo. Water Firm, by Brian Franks, Santa Clarita Valley water disinfection equipment as a part of New York's new Signal http://www.the-signal.com/News/ViewStory.asp? Catskill/Delaware UV Disinfection Facility. The current storyID=8425 design calls for Trojan to supply 56 units, which will be Nearly 56 years after it was organized by Luis Veloz, capable of treating a total of up to 2.2 billion gallons per Aquafine Corp. announced Monday that it has been sold to day, making this Trojan's largest project to date and the a Colorado-based water treatment firm for an undisclosed largest UV drinking water facility in the world. Trojan amount. The deal to sell the Valencia-based manufacturer expects to supply these units to the project in 2007-8… and supplier of industrial ultraviolet water treatment 30 November 2005: H2O Innovation Helps Restaurants equipment to Hach Co., a division of Danaher Corp., Respect Quebec Environmental Regulations closed Friday..