Dave Tracey

Dave has been with LuminUltra since Day 1 and is proud to have been able to contribute from its early days as a small start-up to the company that it is today. He has served in a wide range of roles during that time, from producing reagent and conducting laboratory experiments through to his current position. Nothing is more important to Dave than family, whether it’s his two young sons or his fellow Sales & Marketing teammates. In both cases, he’s well aware that he wouldn’t be much without them. Originally a graduate of the Chemical Engineering program at the University of New Brunswick, his alma mater has come full circle 14 years later with Dave now serving as a mentor for final year ChE students during their senior plant design projects.

What You Ought To Know About Biofilms

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From “I’m infiltrating the walled cities where bacteria hide” by Anders Hakansson, taken from The New Scientist Magazine, 2014.

Dr. Hakansson describes biofilms as “bacteria that hide in enclosed communities” that are “like little cities, with towers and water channels. Different bacteria form different kinds of biofilms, but they always produce some kind of matrix around themselves that acts as a protective coating.”  Furthermore he describe the effects that biofilms have on our bodies and how they can actually cause us more harm if they were to leave; as the bacteria found in these biofilms are typically harmless.

Interesting parallels can be drawn from the human body to biofilm formation found on pipe walls and surfaces which tend to harbor pathogenic microorganisms. Biofilm formation on pipe walls allow microorganisms to survive biocide treatment which can lead to corrosion of equipment and degrade significantly the quality of water coming through the water distribution system.

The fact that biofilm communities exist as a combined ecosystem, a truly complete method for quantifying biological growth is needed to adequately characterize the extent of biofilm development.  Fortunately, advances made in ATP monitoring provide us with the tools necessary to investigate biofilm development and proactively monitor chemical treatment dosage in real-time allowing us to optimize accordingly based on rapid feedback so that microbial build-up is avoided.

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