EPS biofouling in membrane filtration: An analytic modeling study

Kim, Albert S.; Chen, Huaiqun; Yuan, Rong

doi:10.1016/j.jcis.2006.07.067

Cited by 59 publications

(22 citation statements)

References 24 publications

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“…They also reduce the void fraction between cells in the biofilm, resulting in reduced water permeation through the membrane [45]. The reactivity of EPS with solutes hinders the back-diffusion of solutes (from the membrane surface to the bulk phase across the biofilm), contributing to the increase of trans-membrane osmotic pressure and permeate flux decline in NF and RO systems [46]. During membrane cleaning, EPS act as a diffusion barrier, retarding convective flow and transport of anti-microbial agents to microorganisms inside the biofilm [47].…”

Section: Biofilm Formation and Characterization Techniquesmentioning

confidence: 99%

Biofouling of Water Treatment Membranes: A Review of the Underlying Causes, Monitoring Techniques and Control Measures

2012

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Biofouling is a critical issue in membrane water and wastewater treatment as it greatly compromises the efficiency of the treatment processes. It is difficult to control, and significant economic resources have been dedicated to the development of effective biofouling monitoring and control strategies. This paper highlights the underlying causes of membrane biofouling and provides a review on recent developments of potential monitoring and control methods in water and wastewater treatment with the aim of identifying the remaining issues and challenges in this area.

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Section: Biofilm Formation and Characterization Techniquesmentioning

confidence: 99%

Biofouling of Water Treatment Membranes: A Review of the Underlying Causes, Monitoring Techniques and Control Measures

2012

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“…Kim et al [63] modeled the hindered diffusion of solutes within RO biofilms. In that paper, it has been suggested that large amount of EPS will reduce the void fraction between the cells and limit water permeation via the increase in hydraulic resistance.…”

Section: Membrane Biofouling Mechanismsmentioning

confidence: 99%

Biofouling of reverse osmosis membranes: Role of biofilm-enhanced osmotic pressure

Herzberg

Elimelech

2007

Journal of Membrane Science

549

351

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“…Biofouling is not a specific problem for nanofiltration, in contrast to scaling and adsorption of small organic solutes: these may (partly) penetrate into the membrane, whereas bacteria are too large and will remain in the superficial biofilm. Nevertheless, it is suggested [69,70] that the formation and accumulation of exopolymeric substances (EPS) is the real cause of flux decline when biofouling occurs.…”

Section: Membrane Foulingmentioning

confidence: 99%