TheLegend_1003_November2010

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NOVEMBER 2010

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VOLUME 10

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ISSUE THREE

The science of plumbing

the

BY TREVOR KENNEY

A

UNIVERSITY OF LETHBRIDGE

Help the Horns celebrate Movember

Examining the root causes of risk taking

Alumnus Perry Stein lauds campus involvement

Spring Awakening more than shock value

The U of L Legend is published monthly during the academic year by the communications unit within University Advancement. Submissions, comments and story ideas are always welcome. The Legend reserves the right to refuse any submitted advertisement. The Legend can be found online at www.uleth.ca/unews/ legend. Next content deadline is Dec. 3, 2010. A DV E R T I S I N G For ad rates or other information, contact: legend@uleth.ca CREDITS Editor: Trevor Kenney Designer: Stephenie Karsten CO N T R I B U TO R S: Amanda Berg, Diane Britton, Bob Cooney, Jana de Waal, Jane Edmundson, Abby Groenenboom, Suzanne McIntosh, Kali McKay, Stacy Seguin, Katherine Wasiak and Richard Westlund

University of Lethbridge 4401 University Drive Lethbridge, AB T1K 3M4 www.ulethbridge.ca

cooperative effort has helped to thwart a noncompatibility issue and for that, University of Lethbridge students, staff and faculty can be thankful this winter. When the Central Plant’s hot water heating system began to see a number of its valves fail, their rubber linings chewed away to the point where they no longer held water, TJ Hanson and his Utilities staff suspected something more sinister than wear and tear was at the heart of the problem. “The last few years we’ve had a number of incidents where valves throughout the system just weren’t holding,” says Hanson, the director of Facility Operations and Maintencance. “We would close a valve but water would continue through the line and it made it very difficult to isolate a boiler for service.” A total of three gas fired boilers work in unison to supply closed loop hot water heating to the U of L. With valves continuing to fail and another winter heating season looming, Hanson and the Utilities crew knew something had to be done. “When we opened the valves up and looked at them they were all deteriorating or completely chewed up,” says Hanson. “We had a chemical analysis done of the water in the system and we spoke with the valve supplier, but they assured us their valves were fine.” So, the crew decided to seek out its own expert – and found him in-house. “Terry Sutton came up with the idea that we should contact someone in our chemistry department,” says Hanson. The chemistry someone in question was Dr. René Boeré, and it didn’t take long for Boeré to determine what was wrong with the University’s failing valves. By examining the 20 or so constituents in the boiler water, their concentration and subsequently checking their compatibility with the rubber material (known as EPDM) of the valves, Boeré found a problem. “The list from the analyst contained a range of substances, which I compared to a chemical compat-

IGEM TEAM CLAIMS GOLD BY BOB COONEY A group of University of Lethbridge undergraduate chemistry, biochemistry, biology and neuroscience students has been rewarded with Gold Standing at the 2010 International Genetically Engineered Machines competition (iGEM). This is the third gold-level victory for the 18-person synthetic biology research group, which competed against 128 teams at an event held at the Massachusetts Institute of Technology, in Boston, Mass.

Dr. René Boeré, foreground, flanked by Josh Korthuis and Terry Sutton of the U of L’s Utilities staff.

ibility index,” says Boeré. “EPDM is supposed to have good compatibility with the majority of the ingredients in the boiler water. Of those species present that might attack this rubber, I looked at how much was identified as being in the water. Of these, the substance morpholine was one of the highest in concentration and most deleterious to EPDM.” Morpholine is an antiquated agent that has been used in steam and hot water systems because it distributes evenly between hot water and steam, and provides corrosion protection. Chemicals of its type have not been used in the University’s systems for well over 25 years. However, it has remained present as a legacy chemical and in everdeclining concentration. “That was, more or less, our smoking gun,” says Hanson, who now had a summer project on his hands. The only solution was to shut down the entire system, clean it out

and start from scratch. “We drained and refilled the entire system twice, and circulated the water each time to flush it out,” says Hanson. “Then we began the process of replacing valves on campus, a total of 220, ranging in size from four to 14 inches.” The system is now free of Morpholine and with the heating season on the doorstep, the University is prepared, all thanks to the cooperative work of two very distinct University units. “We have to think all the time about the kinds of materials we use to handle a wide range of chemicals, thus we get used to the idea of checking material compatibility,” says Boeré. “It was a pleasure to be able to use these skills to help out TJ and his staff as they work to keep us warm throughout the winter. I think it’s easy for us in the offices and classrooms to take their work for granted.”

The U of L team’s project involved the design of a petrochemical-eating bacteria, which they proved could be used to help clean up water in oil sands tailings ponds. Their effort, which was supported by a $20,000 grant from the Oil Sands initiative, furthers a biological solution to improve the environmental sustainability of Alberta’s oil sands bitumen extraction, upgrading and refining. “The iGEM jamboree was the perfect conclusion to our six months of hard work,” says team member and lab supervisor Justin Vigar. “It was a life-changing experience to be able to present our results on a world-class stage at one of the most prestigious, innovative uni-

versities in the world. To compete in the iGEM competition is an honour in itself, but to achieve a gold medal standing while working on a project that is very relevant to our province and country is indescribable.” “To even get into the iGEM competition is tough, but to further ensure that the team project is proven to work and has promise for further research, is even more difficult,” says Dr. Hans-Joachim Wieden, the team advisor and a researcher in the Department of Chemistry and Biochemistry. A $34,000 undergraduate research grant from Alberta Innovates Future Technologies played a CONTINUED ON PG. 3


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