The effect of halogenated hydantoins on biofilms
- Lonza Inc., Annandale, NJ (United States)
The biocidal efficacy of halogenated hydantoins against laboratory-prepared biofilms was compared to the free halogen donors NaOCl and NaOBr. Higher biocide concentrations were required to control a filamentous biofilm than to control free floating planktonic bacteria. Control of a biocide-resistant S. antans biofilm was best obtained with a repeated slug+3 hour continuous treatment procedure or with conventional continuous biocide treatment. A bromine, methylethylhydantoin-containing oxidizing biocide (BrMEH) was found to be more efficacious than either free chlorine or free bromine in controlling filamentous biofilms. Previous studies indicating the inability of free chlorine to penetrate biofilms were supported as the combination of free and combined halogen was demonstrated to be more effective than free chlorine or bromine alone against attached bacteria.
- OSTI ID:
- 549879
- Report Number(s):
- CONF-970332-; TRN: IM9752%%102
- Resource Relation:
- Conference: Corrosion 97. 52. annual corrosion conference of the National Association of Corrosion Engineers: economics and performance - bridging the gap and NACExpo, New Orleans, LA (United States), 9-14 Mar 1997; Other Information: PBD: 1997; Related Information: Is Part Of Corrosion/97 conference papers; PB: [4584] p.
- Country of Publication:
- United States
- Language:
- English
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