Influence of interactions between NOM and particles on UF fouling mechanisms

Jermann, Doris; Pronk, Wouter; Kägi, Ralf; Halbeisen, Marcel; Boller, Markus

doi:10.1016/j.watres.2008.05.013

Cited by 160 publications

(70 citation statements)

References 31 publications

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“…As filtration progressed, the cake layer became thicker and more compact, which led to a significant increase in total membrane fouling. However, no significant synergistic effect was observed during combined HA-kaolinite fouling in the present study, which differs from the findings of a study conducted by Jermann et al [8]. The reversible fouling that occurred during combined particle-NOM fouling was much higher than the reversible fouling observed in NOM or particle fouling, while the irreversible fouling was almost the same as that observed in the NOM fouling in the study conducted by Jermann et al These contradictory results may be due to the flat sheet membrane adopted in the experiment conducted by Jermann et al, which is susceptible to the concentration of particles.…”

Section: Effect Of Coagulation On Nom Fouling During Ufcontrasting

confidence: 99%

“…Reversible fouling is represented by the part of the specific flux restored by physical backwashing, which is equivalent to the difference in J SF /J SF0 before and after backwashing. The irreversible fouling is accumulated fouling that cannot be restored by backwashing, which equals the difference in J SF /J SF0 between the beginning of the treatment cycle and the beginning of the next cycle [8]. The average total membrane fouling, irreversible fouling and irreversible fouling represented by J SF /J SF0 is presented in Table 1.…”

Section: Effect Of Coagulation On Nom Fouling During Ufmentioning

confidence: 99%

“…Membrane fouling is generally dependent on the properties of the source water and the process parameters [6]. The interaction between the membrane surface and the substances dissolved in source water plays an important role in *Corresponding author (email: chen_water@tsinghua.edu.cn) membrane fouling [7,8]. Turbidity-causing particles and natural organic matter (NOM) in surface water are considered to be two major contributors to membrane fouling.…”

mentioning

confidence: 99%

“…Particulate fouling due to the deposition of colloids is a persistent problem in membrane filtration causing flux decline [16]. Recent studies have shown that turbidity-causing particles play an important role in membrane fouling [8,11,17]. However, these studies have primarily focused on pressured membrane modules with low filtration areas and sole UF process.…”

mentioning

confidence: 99%

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Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM)

Wang

Zhang

et al. 2011

Chin. Sci. Bull.

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Natural organic matter (NOM) and particles in source water are responsible for the majority of ultrafiltration (UF) membrane fouling that occurs during drinking water treatment. This study was conducted to (1) understand the UF membrane fouling phenomena caused by NOM and turbidity-causing particles and (2) investigate the effect of coagulation pretreatment on the alleviation of membrane fouling. In this study, kaolinite and humic acid (HA) were used to simulate the particles and NOM present in source water. The results revealed that the particles contributed to reversible fouling due to cake layer formation on the membrane surface, but that could be effectively reduced by increasing the frequency of physical backwashing. The results of the molecular weight (MW) distribution measurements, resin fractionation, SEM and FTIR analyses showed that HA primarily contributed to irreversible fouling. Taken together, the results of this study imply that the particles and NOM compounds present in source water may have different fouling behavior, and that particles may mitigate the irreversible fouling caused by HA. The addition of coagulant can lead to a higher rate of removal of large-sized hydrophobic compounds. Coagulation pretreatment can improve membrane performance and postpone membrane fouling development effectively, as well as retard the implementation of membrane chemical cleaning. ultrafiltration, membrane fouling, NOM, particles, coagulation Citation:Li Y H, Wang J, Zhang W, et al. Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM).

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Section: Effect Of Coagulation On Nom Fouling During Ufcontrasting

confidence: 99%

Section: Effect Of Coagulation On Nom Fouling During Ufmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM)

Wang

Zhang

et al. 2011

Chin. Sci. Bull.

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“…In earlier works (Belleville et al 1990(Belleville et al , 1992, performing microfi ltration of red wine, membrane fouling has been attributed to high levels of polysaccharides and polyphenols. In ultrafi ltration processes the interaction between inorganic particles and biopolymers has resulted in a fouling cake of signifi cantly reduced porosity (Jermann et al 2008). An irreversible fouling by organic matter takes place due to internal pore adsorption, affecting negatively the ultrafi ltration process (Katsoufi dou et al 2005).…”

Section: Membrane Separation Process Analysismentioning

confidence: 99%

Improvement on the concentrated grape juice physico-chemical characteristics by an enzymatic treatment and Membrane Separation Processes

Campos

Módenes

Espinoza‐Quiñones

et al. 2016

An. Acad. Bras. Ciênc.

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In this work, the improvement on the concentrated grape juice physico-chemical characteristics by using an enzymatic treatment followed by Membrane Separation Process (MSP) has been investigated. By using Novozym 33095® and Ultrazym AFP L® enzymes varying three operating parameters, the best result on the grape pulp characteristics was attained for the Novozym 33095® performed at 35 o C, 15 min. and 50 mgL -1 . In micro/ultra fi ltration processes after enzymatic pretreatment, the best performance of the MSP with high permeate fl ux value and suitable grape juice characteristics was attained using 0.05 μm membrane pore size, 1 bar pressure and 40 o C treatment temperature. When reverse osmosis process is operated at 40 bar and 40 o C, high soluble solid and low turbidity values are attained. An enzymatic treatment along with MSP has shown an alternative and effi cient grape juice processing system, being possible to extend to other foods.

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Fluorescence‐based fouling prediction and optimization of a membrane filtration process for drinking water treatment

et al. 2011

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A novel fluorescence‐based approach is proposed for modeling, predicting, and optimizing different fouling dynamics in an ultrafiltration (UF) process for drinking water treatment. Principal component analysis (PCA) was used to extract information in terms of principal components (PCs), related to major membrane foulant groups, from fluorescence excitation–emission matrix measurements captured during UF of natural river water. The evolution of PC scores during the filtration process was then related to membrane fouling using dynamic balances of latent variable values (PC scores). This approach was found suitable for forecasting fouling behaviors with good accuracy based solely on fluorescence data collected 15 min from the start of the filtration. The proposed approach was tested experimentally through model‐based optimization of backwashing times with the objective of minimizing the energy consumption per unit amount of water produced during the filtration process. This approach was also useful for identifying fouling groups contributing to reversible and irreversible fouling. © 2011 American Institute of Chemical Engineers AIChE J, 2012

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Influence of interactions between NOM and particles on UF fouling mechanisms

Cited by 160 publications

References 31 publications

Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM)

Effects of coagulation on submerged ultrafiltration membrane fouling caused by particles and natural organic matter (NOM)

Improvement on the concentrated grape juice physico-chemical characteristics by an enzymatic treatment and Membrane Separation Processes

Fluorescence‐based fouling prediction and optimization of a membrane filtration process for drinking water treatment

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