Removal of humic substances from aqueous solutions with a photocatalytic membrane reactor

Tsarenko, S. A.; Кочкодан, Віктор; Samsoni-Todorov, A. O.; Гончарук, В. В.

doi:10.1134/s1061933x06030124

Cited by 21 publications

(12 citation statements)

References 18 publications

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“…They have been applied for removal of different pollutants, such as pharmaceuticals [8,20], humic and fulvic acids [4,5,13,17,[25][26][27][28]90,115], trichloroethylene [15], bisphenol A [6,7,14], chlorophenol [4], 4-nitrophenol [24], dyes [4,12,22,23], as well as for treatment of real dyeing wastewater [14], synthetic wastewater [10,16,21], grey water [9], surface waters [11,13,20,90]. The investigations on the PMRs utilizing NF have been focused on removal of dyes [1,32], humic acids [1], 4-nitrophenol [1,2,29,34,35], and pharmaceuticals [30,31,33] from water.…”

Section: Pmrs Coupling Photocatalysis With Pressure-driven Membrane Pmentioning

confidence: 99%

“…Most of the PMRs described in the literature combine photocatalysis with pressure driven membrane processes such as microfiltration (MF) [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], ultrafiltration (UF) [2,[22][23][24][25][26][27][28] and nanofiltration (NF) [1,2,[29][30][31][32][33][34][35]. However, when the catalyst in suspension is applied, the membrane fouling is observed, especially in case of MF and UF membranes.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic membrane reactors (PMRs) in water and wastewater treatment. A review

Mozia

2010

Separation and Purification Technology

532

285

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Section: Pmrs Coupling Photocatalysis With Pressure-driven Membrane Pmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photocatalytic membrane reactors (PMRs) in water and wastewater treatment. A review

Mozia

2010

Separation and Purification Technology

532

285

View full text Add to dashboard Cite

“…Most of these PMRs combine photocatalysis with pressure driven membrane processes such as microfiltration (MF) [15,[18][19][20][21][22][25][26][27][28], ultrafiltration (UF) [1,16,17,29,30] and nanofiltration (NF) [1,2,12,23,24]. However, when a catalyst in suspension is applied, the membrane fouling is observed, especially in case of MF and UF membranes.…”

Section: Introductionmentioning

confidence: 99%

“…The PMRs utilizing catalyst in suspension that are described in literature have been applied to liquid phase photodegradation of humic [15][16][17][18] and fulvic [19] acids, bisphenol A [20,21], phenol [1], 4-nitrophenol [2], 4-chlorophenol [18], pharmaceutical and diagnostic residues [22][23][24], grey water from domestic washing operations [25], para-chlorobenzoate [26], river water [27], dyes [1,12,18,[28][29][30] and many other pollutants. Most of these PMRs combine photocatalysis with pressure driven membrane processes such as microfiltration (MF) [15,[18][19][20][21][22][25][26][27][28], ultrafiltration (UF) [1,16,17,29,30] and nanofiltration (NF) [1,2,12,23,24].…”

Section: Introductionmentioning

confidence: 99%

Effect of process parameters on photodegradation of Acid Yellow 36 in a hybrid photocatalysis–membrane distillation system

Mozia

Morawski

Toyoda

et al. 2009

Chemical Engineering Journal

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“…However, organic membrane may be decomposed under UV exposure as well as in an oxidative environment since photocatalysis produces oxidizing diffusing hydroxyl radicals [28]. Therefore, the two technical processes usually are set up in two different modules, and we call this recirculated photocatalysis (TiO 2 suspended)-membrane separation technology, which has been applied to treating azo dyes [29−31], natural organic matters [32,33] and other toxic organic pollutants [34−36]. Huang et al [30] investigated the degradation of direct scarlet 4BS in dying wastewater by photocatalysis-ultrafiltration technology.…”

Section: Tio 2 -Suspended Photocatalysis-membrane Separation Technologymentioning

confidence: 99%

Progress of applied research on TiO2 photocatalysis-membrane separation coupling technology in water and wastewater treatments

Xiao

et al. 2010

Chin. Sci. Bull.

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Photocatalysis-membrane separation coupling technology has been a heavily researched area in water and wastewater treatment during recent years. The membrane separation process allows the photocatalyst to be easily separated, recovered and reused. More significantly, the membrane is efficient to maintain high flux of membranes as the photocatalyst can reduce the membrane fouling problem which is a hindrance in the development of membrane process. Moreover, some synergistic effects can also be produced, and thus the efficiency of water treatment is enhanced greatly. A comprehensive review of photocatalysis-membrane separation coupling technology is conducted with an insight into its configurations, theories involved, characteristics, and factors that influence the coupling technology. In view of the existing problems, the prospects for future development are also proposed. photocatalysis, membrane separation, titanium dioxide, membrane fouling, photocatalytic membrane reactor Citation:Xiao Y T, Xu S S, Li Z H, et al. Progress of applied research on TiO 2 photocatalysis-membrane separation coupling technology in water and wastewater treatments.Photocatalytic oxidation, a new type of water pollution control technology, with the characteristics of high efficiency, low energy consumption and a wide range of application, can oxidize most organic compounds, especially non-biodegradable organic contaminants, by mineralizing them to small inorganic molecules. For this reason, photocatalytic oxidation technology has broad prospects for application. Among various semiconductor photocatalysts, there is a general consensus among researchers that TiO 2 is more superior because of its high activity, large stability to light illumination, and low price [1−4]. In photocatalytic degradation, two modes of TiO 2 application are adopted: (1) TiO 2 immobilized on support materials, and (2) TiO 2 suspended in aqueous medium [5,6]. Application of TiO 2 in suspension instead of immobilizing the TiO 2 on solid carriers has shown an improvement in organic degradation efficiencies due to the uniform distribution and large specific surface area. However, classical solid-liquid separation processes such as sedimentation, centrifugation and coagulation used for separation of the fine TiO 2 particles (typically less than 1 μm), are not effective [7]. In addition to the low reutiliztion rate, there is also a chance of secondary pollution caused by fine TiO 2 particles in the effluent [8]. Therefore, the recovery of the photocatalysts is one of the main concerns that affect its engineering application on a large scale. A lot of investigations have been conducted aiming at solving this problem. For example, the application of titaniacoated magnetic particles could keep the high photocatalytic efficiency of the suspension system, as well as separate and recover TiO 2 particles from the treated water by applying an external magnetic field [9−11]. Nevertheless, during the integration of TiO 2 and magnetic carrier, the photoactivity of TiO 2 may decre...

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Removal of humic substances from aqueous solutions with a photocatalytic membrane reactor

Cited by 21 publications

References 18 publications

Photocatalytic membrane reactors (PMRs) in water and wastewater treatment. A review

Photocatalytic membrane reactors (PMRs) in water and wastewater treatment. A review

Effect of process parameters on photodegradation of Acid Yellow 36 in a hybrid photocatalysis–membrane distillation system

Progress of applied research on TiO2 photocatalysis-membrane separation coupling technology in water and wastewater treatments

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