A bromine disinfection technology currently utilized in Japan for Combined Sewer Overflow (CSO) disinfection was piloted by the City of Akron, Ohio. Bromochlorodimethylhydantoin (BCDMH) is a biocide in powdered form that, when dissolved in water, hydrolyzes to hypobromous acid, hypochlorous
acid (the active biocides) and Dimethylhydantoin. This unique combination in active biocides can yield similar or better bacteria reductions in less time and with lower disinfection byproducts compared with a similar dose of sodium hypochlorite. The City of Akron expressed interest in this
technology in anticipation of wet weather application of high-rate disinfection that would require intermittent operation and storage of chemicals between such operations. Consequently, Hatch Mott McDonald / Brown and Caldwell were hired to demonstrate this technology using a pilot facility
at the Akron Water Pollution Control Station (WPCS).
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