The World Aquatic Health Conference was held in Denver on October 18-20 and it continues to be the premier science and education conference of the aquatic industry. My presentation on “The Relationship Between Organic Load, Disinfection Byproducts and Sphagnum Moss” was just one of many talks on the growing interest, and concern, about disinfection byproducts in recreational water and the surrounding air. In fact, during the two days of the Advanced Chemistry track, seven of the nine presentations were either about the contaminants found in swimming pools and/or the dynamics of disinfection byproduct production and presence in the water and air of natatoriums.
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You are all very familiar with what The Moss™ does for your customer’s swimming pools and spas. It is highly effective at reducing the overall organic contamination in pools and spas. It is especially effective on removing the organic contamination on the filtration media. This results in more easily managed pool with crystal clear water that uses less chemicals, less water, and provides a healthier pool experience.
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What’s the best way to test the effect of The Moss™ on a sample of water? I’ve talked to many people who took some Moss samples and decided to test water to see if it really does what we claim. They’ve tried putting The Moss™ a glass of water and left it on the windowsill in the sun, they’ve put The Moss™ in a bucket of water and left it on their office floor. All these are well-intentioned attempts to see if The Moss™ works. The only problem is that their needs to be water interaction with The Moss™ leaves with flowing or moving water and to achieve this interaction. After many trials in the lab, I’ve found that an inexpensive 2 gallon aquarium and filter-pump system makes the perfect way to test water.
Two of the many properties ProMoss™ brings to industrial water treatment are flocculation and removal of scale. Flocculation produces clear water by binding TSS (total suspended solids) together until they fall out of solution. Chemical companies charge a lot of money for flocculants and polymers to accomplish the same task. This function of the ProMoss™ only becomes a problem when there is a large load of TSS and the treated water needs to pass a small orifice like a spray nozzle. In this case it makes total sense to place a 40-100 micron bag filter after the ProMoss™ contact chamber to remove the TSS that ProMoss™ has removed from the water by flocculation. If there are no small orifice critical points in the system, filtration may not be necessary.
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By: Steve Chewning, CWT, and James Hall, Southeastern Laboratories, Inc.
These photos are from a tobacco processing plant air washer system in the Southeast US. The plant was switched from chemical treatment toProMoss™ to address corrosion and odor issues in the plant resulting from the use of high levels of oxidizing biocides to maintain bacterial control. These photos are from a section of pipe leading into the system’s plate and frame heat exchanger. The first photo was taken right after the start of theProMoss™ treatment program (which included 1-2.5 ppm hydrogen peroxide). The second photo was taken three months later. Treatment with ProMoss™ has resulted in significant removal of old deposits; the result of years of operation under chemical treatment from multiple vendors.
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