A mechanistic model for ultrafiltration membrane fouling by latex

Abdelrasoul, Amira; Doan, Huu; Lohi, Ali

doi:10.1016/j.memsci.2013.01.003

Cited by 63 publications

(73 citation statements)

References 22 publications

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“…In our previous studies [29,30] for uniform and non-uniform pore size membranes, it was determined that the pore size, surface porosity, pore length, density of membrane pores per unit membrane surface area, and membrane tortuosity, all influence the mass of fouling attached to the membrane surface, as well as the extent to which transmembrane pressure increases due to membrane fouling. In addition, there is the impact of the operating conditions as well as the solution chemistry on fouling attachments and the membrane performance [31,32].…”

Section: Membrane Morphology Parametersmentioning

confidence: 99%

“…In a sea-water desalination plant, the cost of the membrane unit is about 20-25 % of the total capital cost. Usually about 10 % of the membrane is replaced annually so as to maintain the targeted product quality and quantity [29]. The permeate flux and transmembrane pressure (TMP) are the best indicators of membrane fouling.…”

Section: Effect Of Morphology Control On Membrane Foulingmentioning

confidence: 99%

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Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

et al. 2015

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Polysulfone (PSU) membranes have been widely applied in microfiltration and ultrafiltration processes due to their excellent properties, such as chemical inertness across the entire pH range, compressive strength, and thermal stability. Despite these advantages, the application of PSU membranes in filtration processes has often been restricted due to their hydrophobic nature, which results in serious membrane fouling and a reduced permeate flux. Moreover, PSU membranes suffer from several disadvantages, including bulky structure, low binding force between fibers, and poor mechanical properties. The key factor in the development and application of polymeric membranes is the control of its polymeric morphology due to the significant influence of membrane morphology on the membrane performance. Effective techniques of controlling PSU membrane morphology are accessed, and the effects of the morphological control on mechanical properties, chemical stability, membrane performance, and membrane fouling are investigated. Findings from various individual studies were analyzed and discussed in order to provide a critical review of this subject. The results emphasized that the membrane pore size and surface porosity mostly governs PSU membrane morphology, which enhances membrane performance and reduces membrane fouling.

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Section: Membrane Morphology Parametersmentioning

confidence: 99%

Section: Effect Of Morphology Control On Membrane Foulingmentioning

confidence: 99%

Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

et al. 2015

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“…And lastly, cake formation is a condition where particles 562 continue to deposit on initial layer of particles and as soon as the cake formed. The 563 particles maybe smaller or larger than the membrane pore size [118][119][120]. The cake 564 creates additional resistance to the permeate flow.…”

Section: Membrane Fouling Mechanisms For Particulate/colloidal Foulinmentioning

confidence: 99%

“…Membrane-based system is considered to be one 661 of the most effective methods to treat contaminated water with high productivity due 662 to several reasons mentioned earlier. Tables 679 Table 1 [151]; [118] [152]; [153]; [154]; [155] [156]; [157] [158]; [159]; [160] …”

Section: Conclusion 654mentioning

confidence: 99%

Membrane-Based Point-Of-Use Water Treatment (PoUWT) System in Emergency Situations

Shamsuddin

Das

Starov

2014

Separation & Purification Reviews

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Citation: SHAMSUDDIN, N., DAS, D.B. and STAROV, V., 2016. Membranebased point-of-use water treatment (PoUWT) system in emergency situations: a review. Separation and Purification Reviews, 45 (1), pp. 50-67. During emergency situations, effective and quick reactions are vital in order to supply 7 safe and unpolluted drinking water within approved guidelines Point-of-use water 8 treatment (PoUWT) system, for instance, portable membrane-based water treatment 9 devices, could help affected people to survive while waiting for aids to arrive. In the 10 context of portable membrane-based water purification devices, it is also found that 11 the most literature does not mention particle depositions and interactions, and 12 membrane fouling mechanisms that might occur in these devices.

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“…However, little is known about the effect of sludge discharge frequency on the integrated membrane process. Furthermore, most research has been focused on the behavior of organic pollutants during membrane filtration (Abdelrasoul et al, 2013;Tabatabai et al, 2014;Meng et al, 2015), while fewer studies have paid attention to the removal of smaller molecular weight (MW) organic matter, especially heavy metals (Barakat and Schmidt, 2010).…”

Section: Introductionmentioning

confidence: 99%

Enhanced antimony(V) removal using synergistic effects of Fe hydrolytic flocs and ultrafiltration membrane with sludge discharge evaluation

Wang

Liu

et al. 2017

Water Research

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a b s t r a c tThe integration of adsorbents with ultrafiltration (UF) membranes is a promising method for alleviating membrane fouling and reducing land use. However, a number of problems have become apparent concerning the granular adsorbents used currently, such as high running cost, high chance of causing membrane surface damage, low in situ chemical cleaning efficiency, etc. Herein, to overcome these disadvantages, loose in situ hydrolyzed flocs were directly injected into the membrane tank, providing strong adsorption ability at low cost. To test the feasibility of this method, the heavy metal pollutant antimony (Sb (V)) in a water plant was chosen at a test case, which is similar to arsenic and difficult to remove. We found that Fe-based flocs integrated with an UF membrane showed a large potential advantage in removing Sb(V), even after running for 110 days. We demonstrated that the observed slow transmembrane pressure development could be ascribed to the loose floc cake layer formed, even though some extracellular polymeric substances were induced during operation. We also found that the floc cake layer was easily removed by washing with feed water or dissolved by in situ chemical cleaning under strongly acidic conditions, and many primary membrane pores were clearly observed. In addition, a relative long sludge discharge interval was feasible for this technology and the effluent quality was good, including the turbidity, chromaticity and iron concentration. Based on the excellent performance, these flocs integrated with UF membranes indeed show potential for application in water treatment.

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A mechanistic model for ultrafiltration membrane fouling by latex

Cited by 63 publications

References 22 publications

Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

Membrane-Based Point-Of-Use Water Treatment (PoUWT) System in Emergency Situations

Enhanced antimony(V) removal using synergistic effects of Fe hydrolytic flocs and ultrafiltration membrane with sludge discharge evaluation

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