12.15pm - 1.00pm
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Reducing Chloramines and THMS in Indoor Swimming Pools
Dr Ole Gronborg
Chlorine by-products like Trihalomethane (THM) and Chloramine Formation in indoor pools is known to adversely affect bathing comfort and more importantly, swimmers health. Trihalomethanes and Chloramines are formed when human water pollutants combine with chlorine. New Danish science demonstrates that human skin cells, ranging in size from 10-30 micron, dissolve in sand filters, and are the primary cause for the unwanted chlorine by-product formation. A new Water Treatment System removes the skin cells on a continuous basis, reducing the organic load in the pool. The system, now installed in 30 Scandinavian public indoor pools, reduces chlorine demand by +40%, backwash water usage by +60% compared to sand filters, and energy consumption by +50%. The author explains the history of how the technology was developed, the scientific work performed in cooperation with the Danish government and research institutions, and answers questions. |