Journal article
Evaluating particle counters
Journal - American Water Works Association, Vol.89(12), pp.60-70
12/1997
DOI: 10.1002/j.1551-8833.1997.tb08340.x
Abstract
Comparisons of particle counts made by counters and counts made by microscopic processes suggest counters accurately indicate removal efficiency.
Particle counting methods for use in a water treatment facility were analyzed to compare counts made by a particle counter with a forward‐angle light scatter (FALS) sensor with counts made with a scanning electron microscope and by microscopic particulate analysis. A separate study compared an FALS sensor with a light obscuration sensor when challenged with latex spheres and cultured microorganisms and when performing continuous in‐line counts of the facility's filter effluent. Log removal values were comparable among the particle counting methods and did not vary significantly across various size ranges of an FALS sensor. Microorganisms were undersized by both sensor types compared with sizes determined with an optical microscope. These results suggest counters accurately indicate facility particle removal efficiency. However, counts made by a particle counter within a specific size range should be interpreted after characterizing the nature of the particles in the source
Details
- Title: Subtitle
- Evaluating particle counters
- Creators
- Patrick T O'ShaughnessyMichael G BarsottiJames W FayScott W Tighe
- Resource Type
- Journal article
- Publication Details
- Journal - American Water Works Association, Vol.89(12), pp.60-70
- DOI
- 10.1002/j.1551-8833.1997.tb08340.x
- ISSN
- 0003-150X
- eISSN
- 1551-8833
- Number of pages
- 11
- Language
- English
- Date published
- 12/1997
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9984214702602771
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