Fouling in pleated microfiltration cartridges caused by Pseudomonas putida

Rosas, Irene; Collado, Sergio; Fernández, Irene Pérez; Gutierrez-Lavin, Antonio; Dı́az, Mario

doi:10.1016/j.memsci.2013.04.071

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…In addition, it has a rapid reproduction rate, it was diffusely isolated from activated sludge in WWTPs [25,26], and it has been already adopted as model biofoulant to test antifouling technology on membranes [27,28,29]. …”

Section: Resultsmentioning

confidence: 99%

“…The membrane colonizer P. putida (accession number HF546530) was used as target microorganism for all the experiments with zosteric acid as it was commonly present throughout the investigated environment and readily forms biofilms [ 23 , 24 ]. In addition, it has a rapid reproduction rate, it was diffusely isolated from activated sludge in WWTPs [ 25 , 26 ], and it has been already adopted as model biofoulant to test antifouling technology on membranes [ 27 , 28 , 29 ].…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of Zosteric Acid for Mitigating Biofilm Formation of Pseudomonas putida Isolated from a Membrane Bioreactor System

Polo

Foladori

Ponti

et al. 2014

IJMS

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This study provides data to define an efficient biocide-free strategy based on zosteric acid to counteract biofilm formation on the membranes of submerged bioreactor system plants. 16S rRNA gene phylogenetic analysis showed that gammaproteobacteria was the prevalent taxa on fouled membranes of an Italian wastewater plant. Pseudomonas was the prevalent genus among the cultivable membrane-fouler bacteria and Pseudomonas putida was selected as the target microorganism to test the efficacy of the antifoulant. Zosteric acid was not a source of carbon and energy for P. putida cells and, at 200 mg/L, it caused a reduction of bacterial coverage by 80%. Biofilm experiments confirmed the compound caused a significant decrease in biomass (−97%) and thickness (−50%), and it induced a migration activity of the peritrichous flagellated P. putida over the polycarbonate surface not amenable to a biofilm phenotype. The low octanol-water partitioning coefficient and the high water solubility suggested a low bioaccumulation potential and the water compartment as its main environmental recipient and capacitor. Preliminary ecotoxicological tests did not highlight direct toxicity effects toward Daphnia magna. For green algae Pseudokirchneriella subcapitata an effect was observed at concentrations above 100 mg/L with a significant growth of protozoa that may be connected to a concurrent algal growth inhibition.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Evaluation of Zosteric Acid for Mitigating Biofilm Formation of Pseudomonas putida Isolated from a Membrane Bioreactor System

Polo

Foladori

Ponti

et al. 2014

IJMS

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“…Pleating of microfiltration membranes has become the most common feature of cartridges used in a range of biotechnology applications today [6]. A pleated cartridge consists of a flat sheet microfiltration membrane many times folded and packed around a central core surrounding a central perforated core (the output channel) [7] in a way that pleating density gets maximum value [5]. On the other side, the adequate flow pattern is assured by appropriated spacers to hold pleats open [8].…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive Characterization of Industrial Membrane Cartridges by Using Liquid–Liquid Displacement Porosimetry (LLDP)

et al. 2020

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This works aims to propose and demonstrate the accuracy of a novel method of characterization aimed for non-destructive analysis of microfiltration (MF) membrane cartridges. The method adapts conventional liquid–liquid displacement porosimetry (LLDP) for performing an in-line porosimetric analysis of the membrane cartridges, getting their pore size distributions (PSDs) and mean pore diameters (davg). Six commercial filtration cartridges featuring polyethersulfone (PES) pleated membranes were analyzed using a newly designed filtration rig, based on the liquid–liquid displacement porometer, developed at the Institut de la Filtration et des Techniques Séparatives (IFTS) and operated at constant flow. The experimental rig allows the direct and non-destructive characterization of the cartridge in its original presentation. Results have been compared with those obtained by using gas–liquid displacement porosimetry (GLDP) on small membrane coupons detached from such cartridges. The comparison allows us to conclude that the proposed method gives enough accuracy in the determination of porosimetric characteristics of the filters. This method can be used as a precise characterization technique for a non-destructive in-line study of filter performance and can be envisaged as useful to periodic quality or fouling control of the commercial cartridges.

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“…The importance of the antimicrobial activity of chitosan also arises when it is applied as a sorbent in filtering systems, when favorable environment for the growth of bacteria and fungi emerges by keeping the filtering material in the wet state (Rosas, Collado, Fernández, Gutierrez-Lavin, & Diaz, 2013;Williams & Edyvean, 1998;Warris et al, 2010). Biological fouling reduces filtration performance and shortens filter element life as well as can cause negative health effects.…”

Section: Introductionmentioning

confidence: 99%

Correlation between the sorption of dissolved oxygen onto chitosan and its antimicrobial activity against Esherichia coli

Gylienė

Servienė

Vepštaitė

et al. 2015

Carbohydrate Polymers

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Fouling in pleated microfiltration cartridges caused by Pseudomonas putida

Cited by 5 publications

References 16 publications

Evaluation of Zosteric Acid for Mitigating Biofilm Formation of Pseudomonas putida Isolated from a Membrane Bioreactor System

Evaluation of Zosteric Acid for Mitigating Biofilm Formation of Pseudomonas putida Isolated from a Membrane Bioreactor System

Non-Destructive Characterization of Industrial Membrane Cartridges by Using Liquid–Liquid Displacement Porosimetry (LLDP)

Correlation between the sorption of dissolved oxygen onto chitosan and its antimicrobial activity against Esherichia coli

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