`
`OSTI.GOV / Technical Report: Application of digital image analysis for size distrib…
`
`Application of digital image analysis
`for size distribution measurements
`of microbubbles
`
`Abstract
`
`This work employs digital image analysis to measure the size
`distribution of microbubbles generated by the process of
`electro otation for use in solid/liquid separation processes.
`Microbubbles are used for separations in the mineral processing
`industry and also in the treatment of potable water and wastewater.As
`the bubbles move upward in a solid/liquid column due to buoyancy,
`particles collide with and attach to the bubbles and are carried to the
`surface of the column where they are removed by skimming. The
`removal e ciency of solids is strongly affected by the size of the
`bubbles. In general, higher separation is achieved by a smaller bubble
`size. The primary focus of this study was to characterize the size and
`size distribution of bubbles generated in electro otation using image
`analysis. The study found that bubble diameter increased slightly as the
`current density applied to the system was increased. Additionally,
`electro otation produces a uniform bubble size with narrow distribution
`which optimizes the removal of ne particles from solution.
`
`Authors:
`
`
`
`
`; Burns, S E; Yiacoumi, S; Frost, D [1] Tsouris, C [2]
`
`1. Georgia Inst. of Tech., Atlanta, GA (United States). School of Civil and
`Environmental Engineering
`2. Oak Ridge National Lab., TN (United States). Chemical Technology Div.
`
`Publication Date:
`1997-03-01
`
`Research Org.:
`Oak Ridge National Lab., TN (United States)
`
`Sponsoring Org.:
`USDOE O ce of Energy Research, Washington, DC (United States)
`
`OSTI Identi er:
`463646
`
`
`
`
`
`Tennant Company
`Exhibit 1032
`
`
`
`Report Number(s):
`CONF-970583-1
`ON: DE97003088; TRN: AHC29709%%83
`
`DOE Contract Number:
`AC05-96OR22464
`
`Resource Type:
`Technical Report
`
`Resource Relation:
`Conference: Imaging technologies: techniques and civil engineering applications,
`Davos (Switzerland), 25-30 May 1997; Other Information: PBD: [1997]
`
`Country of Publication:
`United States
`
`Language:
`English
`
`Subject:
`32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; BUBBLES;
`FLOTATION; IMAGE PROCESSING; USES; WASTE PROCESSING; WATER
`TREATMENT; SIZE; ELECTROLYSIS; EXPERIMENTAL DATA; SPATIAL
`DISTRIBUTION; CURRENT DENSITY; BUBBLE GROWTH; MINERAL INDUSTRY
`
`TECHNICAL REPORT:
`
` View Technical Report (0.56 MB)
`
`DOI: 10.2172/463646
`
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