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03716 NEW BROMINE-RELEASING GRANULES FOR MICROBIOLOGICAL CONTROL OF COOLING WATER

Product Number: 51300-03716-SG
ISBN: 03716 2003 CP
Author: Christopher J. Nalepa
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The first solid all-bromine oxidizing biocide (DBDMH, 1,3-dibromodimethylhydantoin) has recently been cormnercialized for microbiological control of cooling waters. The product is available in a novel granular form that enables flexible dosing under a variety of conditions and with feeders of different designs. Initial lab studies indicated that compared to traditional products, this new biocide was more effective against a wide range of planktonic and biofihn-associated microorganisms. In addition, independent field studies indicated that the material was easy to dose and had desirable handling properties. These performance and handling properties have proved to be an advantage in a variety of industrial cooling water applications. This paper describes how this innovative technology evolved from a laboratory curiosity to a commercialized product currently treating millions of gallons of water per day. Case histories will be presented which illustrate the unique properties and versatility of this product. Keywords: Oxidizing biocide, 1,3-dibromo-5,5-dimethylhydantoin, DBDMH, BCDMH, BCMEH, biocide application, phosphonate, triazole, phosphonate reversion, sodium bromide, activated sodiumbromide, chlorine, bleach, sodium hypochlorite, Trichlor.
The first solid all-bromine oxidizing biocide (DBDMH, 1,3-dibromodimethylhydantoin) has recently been cormnercialized for microbiological control of cooling waters. The product is available in a novel granular form that enables flexible dosing under a variety of conditions and with feeders of different designs. Initial lab studies indicated that compared to traditional products, this new biocide was more effective against a wide range of planktonic and biofihn-associated microorganisms. In addition, independent field studies indicated that the material was easy to dose and had desirable handling properties. These performance and handling properties have proved to be an advantage in a variety of industrial cooling water applications. This paper describes how this innovative technology evolved from a laboratory curiosity to a commercialized product currently treating millions of gallons of water per day. Case histories will be presented which illustrate the unique properties and versatility of this product. Keywords: Oxidizing biocide, 1,3-dibromo-5,5-dimethylhydantoin, DBDMH, BCDMH, BCMEH, biocide application, phosphonate, triazole, phosphonate reversion, sodium bromide, activated sodiumbromide, chlorine, bleach, sodium hypochlorite, Trichlor.
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