Effects of ultrafiltration membrane surface properties on Pseudomonas aeruginosa biofilm initiation for the purpose of reducing biofouling

Pasmore, Mark; Todd, Paul; Smith, Sara N.; Baker, Dawn; Silverstein, JoAnn; Coons, Darrell E.; Bowman, Christopher N.

doi:10.1016/s0376-7388(01)00468-9

Cited by 215 publications

(96 citation statements)

References 36 publications

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“…It is well-known that the severity of fouling increases as the hydrophobicity of the membrane increases, because organic molecules have a higher affinity for hydrophobic materials [47,159,[161][162][163][164][165]. Most commercial MF and UF membranes are made from relatively hydrophobic polymers (e.g., polysulfone, polyethersulfone, polypropylene, polyethylene, and polyvinylidene-fluoride (PVDF)), due to their excellent chemical resistance, and thermal and mechanical properties [83,[166][167][168][169][170].…”

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

“…Attractive electrostatic forces between a charged surface and the co-ions in the feed solution increase fouling [161], while repulsive electrostatic forces mitigate fouling. In general, a low surface charge or electrically neutral surfaces tend to show better anti-fouling properties during the initial stages of membrane fouling [163,171]. Since most colloidal particles, such as those in natural organic matter (NOM), that tend to deposit are negatively charged, membrane surfaces are usually negatively charged [161,168,169], although positively charged membrane surfaces are also used to repel positively charged colloids and cations [172].…”

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

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The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

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Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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“…19 Conversely, P. aeruginosa was less likely to foul hydrophilic, electrically neutral, smooth polymeric surfaces. 20 Interestingly, bacterial adhesion was reduced on stainless steel surface microtopographies that were generated by a one-directional polishing finish relative to smooth surfaces. 21 The aforementioned studies examined surfaces that were randomly roughened and did not examine specific surface features.…”

Section: Introductionmentioning

confidence: 99%

Impact of engineered surface microtopography on biofilm formation of Staphylococcus aureus

Chung¹,

Schumacher²,

Sampson³

et al. 2007

Biointerphases

358

303

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“…Akesso et al (2009a) and Navabpour et al (2010) also reported that the number of adhered freshwater bacteria increased linearly with increasing surface energy of coatings. However, there are also a number of contrary findings that high-energy surfaces have a smaller biofouling tendency and higher removal rate than low-energy surfaces (Fletcher and Marshall 1982;Brink et al 1993;Pasmore et al 2001). Hahnel et al (2009) reported that there was no significant relationship between surface energy and bacterial adhesion.…”

Section: Introductionmentioning

confidence: 99%

The CQ ratio of surface energy components influences adhesion and removal of fouling bacteria

Liu

Zhao

2011

Biofouling

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The interaction energy between bacteria and substrata with different surface energies was modelled by the extended DLVO (Derjaguin, Landau, Verwey and Overbeek) theory. The modeling results revealed that the interaction energy has a strong correlation with the CQ (Chen and Qi) ratio, which is defined as the ratio of the Lifshitz-van der Waals (LW) apolar to the electron donor surface energy components of substrata. Both modeling and experimental results with different bacteria including P. fluorescens, Cobetia marina and Vibrio alginolyticus demonstrated that if the LW surface energy of bacteria is larger than that of water, which is the case for most bacteria, the number of adhered bacteria decreases with a decreasing CQ ratio while bacterial removal rate increases with a decreasing CQ ratio. However, if the LW surface energy of bacteria is less than that of water, the opposite results are obtained. The CQ ratio gives a clear direction for the design of anti-biofouling and biofouling-release coatings through surface modification.

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Effects of ultrafiltration membrane surface properties on Pseudomonas aeruginosa biofilm initiation for the purpose of reducing biofouling

Cited by 215 publications

References 36 publications

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Impact of engineered surface microtopography on biofilm formation of Staphylococcus aureus

The CQ ratio of surface energy components influences adhesion and removal of fouling bacteria

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