Deposition and transport of Pseudomonas aeruginosa in porous media: lab-scale experiments and model analysis.

Kyu Sang Kwon, Song Bae Kim, Nag Choul Choi, Dong Ju Kim, Soon-Jae Lee, Sang-Hyup Lee, Jae Woo Choi

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In this study, the deposition and transport of Pseudomonas aeruginosa on sandy porous materials have been investigated under static and dynamic flow conditions. For the static experiments, both equilibrium and kinetic batch tests were performed at a 1:3 and 3:1 soil:solution ratio. The batch data were analysed to quantify the deposition parameters under static conditions. Column tests were performed for dynamic flow experiments with KCl solution and bacteria suspended in (1) deionized water, (2) mineral salt medium (MSM) and (3) surfactant + MSM. The equilibrium distribution coefficient (K(d)) was larger at a 1:3 (2.43 mL g(-1)) than that at a 3:1 (0.28 mL g(-1)) soil:solution ratio. Kinetic batch experiments showed that the reversible deposition rate coefficient (k(att)) and the release rate coefficient (k(det)) at a soil:solution ratio of 3:1 were larger than those at a 1:3 ratio. Column experiments showed that an increase in ionic strength resulted in a decrease in peak concentration of bacteria, mass recovery and tailing of the bacterial breakthrough curve (BTC) and that the presence of surfactant enhanced the movement of bacteria through quartz sand, giving increased mass recovery and tailing. Deposition parameters under dynamic condition were determined by fitting BTCs to four different transport models, (1) kinetic reversible, (2) two-site, (3) kinetic irreversible and (4) kinetic reversible and irreversible models. Among these models, Model 4 was more suitable than the others since it includes the irreversible sorption term directly related to the mass loss of bacteria observed in the column experiment. Applicability of the parameters obtained from the batch experiments to simulate the column breakthrough data is evaluated.

Original languageEnglish
Title of host publicationEnvironmental technology
Pages2757-2764
Number of pages8
Volume34
Edition17-20
Publication statusPublished - 2013

Fingerprint

Porous materials
porous medium
Bacteria
kinetics
Kinetics
bacterium
experiment
Experiments
Tailings
Soils
Surface-Active Agents
tailings
Minerals
surfactant
Salts
salt
Recovery
Quartz
soil
Deionized water

ASJC Scopus subject areas

  • Environmental Chemistry
  • Waste Management and Disposal
  • Water Science and Technology

Cite this

Kwon, K. S., Kim, S. B., Choi, N. C., Kim, D. J., Lee, S-J., Lee, S-H., & Choi, J. W. (2013). Deposition and transport of Pseudomonas aeruginosa in porous media: lab-scale experiments and model analysis. In Environmental technology (17-20 ed., Vol. 34, pp. 2757-2764)

Deposition and transport of Pseudomonas aeruginosa in porous media : lab-scale experiments and model analysis. / Kwon, Kyu Sang; Kim, Song Bae; Choi, Nag Choul; Kim, Dong Ju; Lee, Soon-Jae; Lee, Sang-Hyup; Choi, Jae Woo.

Environmental technology. Vol. 34 17-20. ed. 2013. p. 2757-2764.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kwon, KS, Kim, SB, Choi, NC, Kim, DJ, Lee, S-J, Lee, S-H & Choi, JW 2013, Deposition and transport of Pseudomonas aeruginosa in porous media: lab-scale experiments and model analysis. in Environmental technology. 17-20 edn, vol. 34, pp. 2757-2764.
Kwon KS, Kim SB, Choi NC, Kim DJ, Lee S-J, Lee S-H et al. Deposition and transport of Pseudomonas aeruginosa in porous media: lab-scale experiments and model analysis. In Environmental technology. 17-20 ed. Vol. 34. 2013. p. 2757-2764
Kwon, Kyu Sang ; Kim, Song Bae ; Choi, Nag Choul ; Kim, Dong Ju ; Lee, Soon-Jae ; Lee, Sang-Hyup ; Choi, Jae Woo. / Deposition and transport of Pseudomonas aeruginosa in porous media : lab-scale experiments and model analysis. Environmental technology. Vol. 34 17-20. ed. 2013. pp. 2757-2764
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