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Efficacy of DBNPA against Legionella pneumophila: experimental results in a model water system.

Author(s) : GAO V., ZHOU P., LIN Y. E.

Summary

Although chlorine is the best biocide for Legionella control, corrosion is a major disadvantage associated with its use. Nonoxidizing biocides have the advantage of reduced corrosion but may have marginal efficacy. DBNPA (2,2-dibromo-3-nitrilopropionamide) is a nonoxidizing biocide that has demonstrated short-term efficacy against Legionella after exposure to a single dose of 8-19 ppm, but dosing at these levels is not economically feasible. Therefore, the objective of the study was to compare the efficacy of 5.0 ppm and 15.0 ppm slug doses of DBNPA vs. 5.0 ppm and 1.0 ppm with multiple dosing to achieve a residual level of 1.0 ppm of DBNPA over a 16-day period.

Details

  • Original title: Efficacy of DBNPA against Legionella pneumophila: experimental results in a model water system.
  • Record ID : 2002-0945
  • Languages: English
  • Source: ASHRAE Transactions. 2001 Winter Meeting, Atlanta, GA. Volume 107, part 1 + CD-ROM.
  • Publication date: 2001
  • Document available for consultation in the library of the IIR headquarters only.

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