Ceramic membrane filtration of organic compounds: Effect of concentration, pH, and mixtures interactions on fouling

Angelis, Laura De; Cortalezzi, María Marta Fidalgo de

doi:10.1016/j.seppur.2013.08.016

Cited by 57 publications

(41 citation statements)

References 40 publications

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“…However, membrane fouling due to cake resistance limits the performance of UF [21]. Angelis et al [22] found a strong dependence between foulant concentration and solution pH for iron oxide ceramic membrane. However, in the present work, solution pH was not studied and all the experiments were carried out at a neutral pH ($7).…”

Section: Effect Of Membrane Filtration Of Treated Feed (Obtained Frommentioning

confidence: 99%

Purification of crude glycerol using a sequential physico-chemical treatment, membrane filtration, and activated charcoal adsorption

Dhabhai

Ahmadifeijani

Dalai

et al. 2016

Separation and Purification Technology

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Section: Effect Of Membrane Filtration Of Treated Feed (Obtained Frommentioning

confidence: 99%

Purification of crude glycerol using a sequential physico-chemical treatment, membrane filtration, and activated charcoal adsorption

Dhabhai

Ahmadifeijani

Dalai

et al. 2016

Separation and Purification Technology

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“…1 shows the relative permeability and total resistance of HA after filtration. At the higher concentration, a sharper flux decline was observed, and hydraulic reversible fouling was reduced due to increased pore blocking and cake formation [1]. After hydraulic backwashing with permeate, the flux recovery of HA with 10 and 50 mg/L was 15.1 and 40.0%, but it was reduced sharply.…”

Section: Effect Of Foulant Concentrationmentioning

confidence: 96%

“…(2015) [1][2][3][4][5][6][7][8][9] www.deswater.com doi: 10.1080/19443994.2015.1057035 In membrane filtration technology, one type of membrane fouling is physical reversible fouling, which can be controlled by physical washing, such as backwashing [5]. However, organic compounds cause physical irreversible fouling, especially on MF and UF membranes, because they are much smaller than the pore sizes of MF and UF membranes.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…Complete blocking Table 1 The occurs at the membrane surface when particles block the pores with no superposition. The flux variation as a function of time can be written as [1]:…”

Section: Membrane Fouling Mechanismmentioning

confidence: 99%

“…It has been considered one of the most promising technologies because it has many advantages for water treatment, including a lower requirement for chemicals, easy automation, and a high potential for integrating various processes [1,2]. Microfiltration (MF) and ultrafiltration (UF) membrane technology have been applied to treat various components of wastewater or surface water, such as particles, bacteria, and nonorganic matter (NOM) [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Fouling characteristics of NOM during the ceramic membrane microfiltration process for water treatment

Kim

Jang

2016

Desalination and Water Treatment

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A B S T R A C TCeramic membrane filtration is one of the most promising membrane technologies used for advanced water treatment. Many studies of the fouling behavior of natural organic matter (NOM) have been conducted, but membrane fouling due to dissolved organic matter remains a critical problem preventing the efficient operation of ceramic microfiltration (MF) in water treatment. The aim of this study was to evaluate the fouling characteristics of NOM during ceramic MF using pilot-scale ceramic membrane equipment. In experiments to characterize this fouling behavior, humic acid (HA), bovine serum albumin (BSA), and sodium alginate (SA) were used as representatives of humic substances, proteins, and polysaccharides, respectively. In particular, we evaluated the effects of several parameters on the fouling characteristics of NOM, including concentration, foulant mixture, and rate of flux recovery. The flux decline in the presence of SA showed that ceramic membrane fouling occurred immediately. The membrane fouling by HA was well explained by a linear regression equation. More interestingly, BSA was found to cause mainly irreversible fouling, which is significant because this mechanism involves internal pore adsorption through particle superposition due to foulant accumulation on the membrane surface. The results indicate that the different fouling behaviors of the three types of macromolecules are distinct due to their apparent physical-chemical characteristics.

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Ceramic micro/ultra‐filtration of low‐concentration ultrafine sulfur in desulfurization wastewater

Yin

Wang

Zhong

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND A low concentration of ultrafine suspended sulfur (SS) in the wastewater produced from the coking gas desulfurization process is a serious problem. In this study, ceramic microfiltration and ultrafiltration membranes were used to remove ultrafine SS for further recovery. RESULTS Results showed that membrane with a pore size of 0.05 µm at the operating conditions 0.15 MPa, 40 °C and 4.0 m s−1 experienced the lowest flux decline and degree of fouling in comparison with other conditions. All membranes exhibited good rejections of sulfur (>99.9%) and tar oil (>98.0%). The SS ranged from 1.5 to 34.0 g L−1 had no influence on the permeate turbidity (<1 NTU) but resulted in an increase in the tar oil content and a decrease in the permeate flux. SEM/EDX results indicated that the membrane surface was fouled by the sulfur particles and ammonium salts, while the tar oil entered the membrane pores. An effective cleaning method with high flux recovery (>98%) was applied to remove the foulants using mixed solutions of 1% (w/w) NaOH and 0.5% (w/w) NaClO. CONCLUSION The results showed that the ceramic membranes are effective in ultrafine sulfur removal from the wastewater. © 2016 Society of Chemical Industry

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Ceramic membrane filtration of organic compounds: Effect of concentration, pH, and mixtures interactions on fouling

Cited by 57 publications

References 40 publications

Purification of crude glycerol using a sequential physico-chemical treatment, membrane filtration, and activated charcoal adsorption

Purification of crude glycerol using a sequential physico-chemical treatment, membrane filtration, and activated charcoal adsorption

Fouling characteristics of NOM during the ceramic membrane microfiltration process for water treatment

Ceramic micro/ultra‐filtration of low‐concentration ultrafine sulfur in desulfurization wastewater

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