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Title
  • en Removal kinetic model of oil droplet from o/w emulsion by adding methylated milk casein in flotation
Creator
Accessrights open access
Subject
  • Other en Flotation
  • Other en o/w emulsion
  • Other en Removal model
  • Other en Methylated milk casein
  • Other en Separation
  • NDC 517
Description
  • Abstract en In this study, o/w emulsion flotation experiments were conducted by adding methylated milk casein (MeSC). Emulsion used in this study was prepared by ultrasonic emulsification of heavy oil (bunker-A) and sodium dodecyl sulfate (SDS) solution. A simple kinetic model was proposed to estimate the removal rate of the oil droplets within the column. The model was based on main assumption that adsorption of single droplet adsorbed MeCS or floc onto bubble surface within flotation column. Removal rate constant, K, was defined by ka Xs (Sbτ/V), where ka and Xs are overall adsorption rate and saturated adsorption density of oil droplet or floc, Sb, τ and V are bubble surface production rate, retention time of bubble swarms and emulsion volume within the column, respectively. The experiments were conducted with varying operating conditions; superficial gas velocity, column dimension and emulsion volume. K was evaluated from slope value of obtained straight line by plotting time versus ln (T/T0), where T/T0 is relative turbidity. K was mostly proportional to (Sbτ/V), which corresponds to specific surface area of bubble swarms per unit volume within the column, in the present experimental region. This result suggested that efficiency of this removal process was mainly controlled by the specific surface area of bubble swarms, and proposed model was fundamentally verified.
Publisher en Elsevier
Date
    Issued2012-06-01
Language
  • eng
Resource Type journal article
Version Type AM
Identifier HDL http://hdl.handle.net/2115/49431
Relation
  • isVersionOf DOI https://doi.org/10.1016/j.watres.2012.03.016
  • PMID 22483713
Journal
    • PISSN 0043-1354
      • en Water Research
      • Volume Number46 Issue Number9 Page Start3094 Page End3100
File
Oaidate 2023-07-26