Periodic air/water cleaning for control of biofouling in spiral wound membrane elements

Cornelissen, Emile; Vrouwenvelder, Johannes S.; Heijman, S.G.J.; Viallefont, X.D.; Kooij, D. van der; Wessels, L.P.

doi:10.1016/j.memsci.2006.10.023

Cited by 116 publications

(66 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, only two articles are available that describe bubble flow in flat sheet modules filled with spacer-like structures in detail [7,10], despite the fact that this technique is known to improve the performance of spiral wound modules [9,11] as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Bubbles in spacers: Direct observation of bubble behavior in spacer filled membrane channels

Willems

Kemperman

Lammertink

et al. 2009

Journal of Membrane Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Bubbles in spacers: Direct observation of bubble behavior in spacer filled membrane channels

Willems

Kemperman

Lammertink

et al. 2009

Journal of Membrane Science

View full text Add to dashboard Cite

“…For example, EPS have been shown to mediate bacterial attachment on membrane filters thereby deteriorating their performance (Frank and Belfort, 2003;Le-Clech et al, 2006;Ridgway and Flemming, 1996;Ridgway et al, 1999). More detailed analysis of EPS components is warranted so that novel membrane biofouling control strategies can be developed and existing ones optimized such as using surfactants, high-shear tangential flow, backwashing, and air scour (Brou et al, 2003;Campbell et al, 1999;Chellam et al, 1998;Cornelissen et al, 2007;Kuberkar et al, 1998;Naja et al, 2006;Rodgers and Sparks, 1992;Splendiani et al, 2006). This study continues our recent investigations of microfiltration (MF) biofouling (Chellam and Xu, 2006;Xu and Chellam, 2005) wherein we present detailed analysis of EPS constituents and further evidence of EPS-induced reduction in backwashing effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Bismuth dimercaptopropanol (BisBAL) inhibits the expression of extracellular polysaccharides and proteins by Brevundimonas diminuta: Implications for membrane microfiltration

Badireddy

Chellam

Yanina

et al. 2007

Biotech & Bioengineering

View full text Add to dashboard Cite

A 2:1 molar ratio preparation of bismuth with a lipophilic dithiol (3-dimercapto-1-propanol, BAL) significantly reduced extracellular polymeric substances (EPS) expression by Brevundimonas diminuta in suspended cultures at levels just below the minimum inhibitory concentration (MIC). Total polysaccharides and proteins secreted by B. diminuta decreased by approximately 95% over a 5-day period when exposed to the bismuth-BAL chelate (BisBAL) at near MIC (12 microM). Fourier-transform infrared spectroscopy (FTIR) suggested that a possible mechanism of biofilm disruption by BisBAL is the inhibition of carbohydrate O-acetylation. FTIR also revealed extensive homology between EPS samples with and without BisBAL treatment, with proteins, polysaccharides, and peptides varying predominantly only in the amount expressed. EPS secretion decreased following BisBAL treatment as verified by atomic force microscopy and scanning electron microscopy. Without BisBAL treatment, a slime-like EPS matrix secreted by B. diminuta resulted in biofouling and inefficient hydrodynamic backwashing of microfiltration membranes.

show abstract

“…Therefore, coating stability may become critical when chemical cleaning is applied to prevent or control fouling. The impact of membrane coating should be evaluated not only in terms of biofouling, but also (i) how the formed biofilm composition and morphology are affected [58], (ii) on membrane cleanability [59,60] and (iii) on coating stability.…”

Section: Coating Stabilitymentioning

confidence: 99%

Coating of reverse osmosis membranes with amphiphilic copolymers for biofouling control

Bucs¹,

Linares²,

Siddiqui³

et al. 2017

Desalination and Water Treatment

View full text Add to dashboard Cite

a b s t r a c tSurface coating of membranes may be a promising option to control biofilm development and biofouling impact on membrane performance of spiral-wound reverse osmosis (RO) systems. The objective of this study was to investigate the impact of an amphiphilic copolymer coating on biofilm formation and biofouling control. The coating was composed of both hydrophilic and hydrophobic monomers hydroxyethyl methacrylate (HEMA) and perfluorodecyl acrylate (PFA), respectively. Commercial RO membranes were coated with HEMA-PFA copolymer film. Long and short term biofouling studies with coated and uncoated membranes and feed spacer were performed using membrane fouling simulators (MFSs) operated in parallel, fed with water containing nutrients. For the long-term studies pressure drop development in time was monitored and after eight days the MFSs were opened and the accumulated biofilm on the membrane and spacer sheets was quantified and characterized. The presence of the membrane coating was determined using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). Results showed that the amphiphilic coating (i) delayed biofouling (a lower pressure drop increase by a factor of 3 and a lower accumulated active biomass amount by a factor of 6), (ii) influenced the biofilm composition (23% lower polysaccharides and 132% higher protein content) and (iii) was still completely present on the membrane at the end of the biofouling study, showing that the coating was strongly attached to the membrane surface. Using coated membranes and feed spacers in combination with advanced cleaning strategies may be a suitable way to control biofouling.

show abstract

Periodic air/water cleaning for control of biofouling in spiral wound membrane elements

Cited by 116 publications

References 21 publications

Bubbles in spacers: Direct observation of bubble behavior in spacer filled membrane channels

Bubbles in spacers: Direct observation of bubble behavior in spacer filled membrane channels

Bismuth dimercaptopropanol (BisBAL) inhibits the expression of extracellular polysaccharides and proteins by Brevundimonas diminuta: Implications for membrane microfiltration

Coating of reverse osmosis membranes with amphiphilic copolymers for biofouling control

Contact Info

Product

Resources

About