Abstract
A prototype distillation and storage system with recycle for producing ultrapure water was monitored for bacteriological contamination during a period of 24 months. Naturally occurring Pseudomonas aeruginosa and P. cepacia were found to grow rapidly to levels of about 105/ml in water taken from the storage reservoir and also in commercially prepared distilled water. The system was found to eliminate bacterial contaminants introduced into the still with the feed water, but the reservoir, once contaminated, remained contaminated during prolonged recycle. After a single treatment with free chlorine, the entire system remained uncontaminated until accidental or purposeful shutdown.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Carson L. A., Favero M. S., Bond W. W., Petersen N. J. Factors affecting comparative resistance of naturally occurring and subcultured Pseudomonas aeruginosa to disinfectants. Appl Microbiol. 1972 May;23(5):863–869. doi: 10.1128/am.23.5.863-869.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carson L. A., Favero M. S., Bond W. W., Petersen N. J. Morphological, biochemical, and growth characteristics of pseudomonas cepacia from distilled water. Appl Microbiol. 1973 Mar;25(3):476–483. doi: 10.1128/am.25.3.476-483.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Duma R. J. Pseudomonas and water, with a new twist. Ann Intern Med. 1972 Mar;76(3):506–507. doi: 10.7326/0003-4819-76-3-506. [DOI] [PubMed] [Google Scholar]
- Favero M. S., Berquist K. R. Use of laminar air-flow equipment in microbiology. Appl Microbiol. 1968 Jan;16(1):182–183. doi: 10.1128/am.16.1.182-183.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Favero M. S., Carson L. A., Bond W. W., Petersen N. J. Pseudomonas aeruginosa: growth in distilled water from hospitals. Science. 1971 Aug 27;173(3999):836–838. doi: 10.1126/science.173.3999.836. [DOI] [PubMed] [Google Scholar]
- Favero M. S. Letter to the editor. Science. 1972 Jan 7;175(4017):8–10. doi: 10.1126/science.175.4017.8-c. [DOI] [PubMed] [Google Scholar]
- Gibbs E. L., Hickman K., Kayser W., Stark E., White I. Still specifications. Science. 1973 Jul 27;181(4097):298–300. doi: 10.1126/science.181.4097.298. [DOI] [PubMed] [Google Scholar]
- Hickman K., White I., Stark E. A distilling system for purer water. Science. 1973 Apr 6;180(4081):15–25. doi: 10.1126/science.180.4081.15. [DOI] [PubMed] [Google Scholar]
- Thomas P. J. Contamination of distilled water. Science. 1972 Jan 7;175(4017):8–10. doi: 10.1126/science.175.4017.8-b. [DOI] [PubMed] [Google Scholar]