Application of a ceramic membrane contacting process for ozone and peroxone treatment of micropollutant contaminated surface water

Stylianou, Stylianos K.; Katsoyiannis, Ioannis A.; Mitrakas, Manassis; Zouboulis, Anastasios

doi:10.1016/j.jhazmat.2018.06.060

Cited by 39 publications

(15 citation statements)

References 48 publications

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“…With the addition of 15 µM H2O2 the pCBA removal showed a small increase in all four water matrices tested. Similar results have been observed in a membrane contacting system employing a ceramic membrane, where the peroxone process increased the removal of pCBA in river water by less than 10% [53]. A higher improvement of pCBA removal has been observed by H2O2 addition in batch experiments [49,54].…”

Section: Overall Ozone Mass Transfer Coefficient and Molar Flux Throusupporting

confidence: 83%

“…A higher improvement of pCBA removal has been observed by H2O2 addition in batch experiments [49,54]. The difference between the conventional (batch) peroxone process and the membrane peroxone process can be attributed to the non-uniform concentration of ozone in the membrane, which influences the O3:H2O2 ratio and thus the OH radical yield [53]. Adjusting flow conditions or membrane diameter to achieve a more uniform ozone concentration profile might diminish this discrepancy.…”

Section: Overall Ozone Mass Transfer Coefficient and Molar Flux Throumentioning

confidence: 94%

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A Single Tube Contactor for Testing Membrane Ozonation

Zoumpouli

Baker

Taylor

et al. 2018

Water

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A membrane ozonation contactor was built to investigate ozonation using tubular membranes and inform computational fluid dynamics (CFD) studies. Non-porous tubular polydimethylsiloxane (PDMS) membranes of 1.0–3.2 mm inner diameter were tested at ozone gas concentrations of 110–200 g/m3 and liquid side velocities of 0.002–0.226 m/s. The dissolved ozone concentration could be adjusted to up to 14 mg O3/L and increased with decreasing membrane diameter and liquid side velocity. Experimental mass transfer coefficients and molar fluxes of ozone were 2.4 × 10−6 m/s and 1.1 × 10−5 mol/(m2 s), respectively, for the smallest membrane. CFD modelling could predict the final ozone concentrations but slightly overestimated mass transfer coefficients and molar fluxes of ozone. Model contaminant degradation experiments and UV light absorption measurements of ozonated water samples in both ozone (O3) and peroxone (H2O2/O3) reaction systems in pure water, river water, wastewater effluent, and solutions containing humic acid show that the contactor system can be used to generate information on the reactivity of ozone with different water matrices. Combining simple membrane contactors with CFD allows for prediction of ozonation performance under a variety of conditions, leading to improved bubble-less ozone systems for water treatment.

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Section: Overall Ozone Mass Transfer Coefficient and Molar Flux Throusupporting

confidence: 83%

Section: Overall Ozone Mass Transfer Coefficient and Molar Flux Throumentioning

confidence: 94%

A Single Tube Contactor for Testing Membrane Ozonation

Zoumpouli

Baker

Taylor

et al. 2018

Water

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“…In pure buffered water the addition of H2O2 did not lead to a significant increase in pCBA removal ( Figure 4a). Similar results have been observed in a membrane contacting system employing a ceramic membrane, where the peroxone process increased the removal of pCBA in river water by less than 10 % [52]. A higher improvement of pCBA removal has been observed by H2O2 addition in batch experiments [48,53].…”

Section: Removal Of Pcba By Membrane Ozonation and In Presence Of Addsupporting

confidence: 83%

A Single Tube Contactor for Testing Membrane Ozonation

Zoumpouli¹,

Baker²,

Taylor³

et al. 2018

Preprint

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A membrane ozonation contactor was built to investigate ozonation using tubular membranes and to inform computational fluid dynamics (CFD) studies. Non-porous tubular polydimethylsiloxane (PDMS) membranes of 1.0 – 3.2 mm inner diameter were tested at ozone gas concentrations of 110 – 200 g m−3 and liquid side velocities of 0.002 m s−1 – 0.226 m s−1. The dissolved ozone concentration could be adjusted to up to 14 mg O3 L−1 and increased with decreasing membrane diameter and liquid side velocity. Experimental mass transfer coefficients and molar fluxes of ozone were 1.1∙10−5 mol m−2 s−1 and 2.4∙10−6 m s−1, respectively, for the smallest membrane. CFD modelling could predict the final ozone concentrations but slightly overestimated mass transfer coefficients and molar fluxes of ozone. Model contaminant degradation experiments and UV absorption measurements of ozonated water samples in both ozone (O3) and peroxone (H2O2/O3) reaction systems in pure water, river water, wastewater effluent and solutions containing humic acid show that the contactor system can be used to generate information on the reactivity of ozone with different water matrices. Combining simple membrane contactors with CFD allows predicting ozonation performance under a variety of conditions leading to improved bubble-less ozone systems for water treatment.

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“…Furthermore, if high levels of bromide ions are present in the effluent, ozonation can lead to the generation of bromate, which has been proved to act as a carcinogen [80].…”

Section: Ozonationmentioning

confidence: 99%

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

Cuerda-Correa

Alexandre-Franco

Fernández-González

2019

Water

488

240

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In this work, the application of advanced oxidation processes (AOPs) for the removal of antibiotics from water has been reviewed. The present concern about water has been exposed, and the main problems derived from the presence of emerging pollutants have been analyzed. Photolysis processes, ozone-based AOPs including ozonation, O3/UV, O3/H2O2, and O3/H2O2/UV, hydrogen peroxide-based methods (i.e., H2O2/UV, Fenton, Fenton-like, hetero-Fenton, and photo-Fenton), heterogeneous photocatalysis (TiO2/UV and TiO2/H2O2/UV systems), and sonochemical and electrooxidative AOPs have been reviewed. The main challenges and prospects of AOPs, as well as some recommendations for the improvement of AOPs aimed at the removal of antibiotics from wastewaters, are pointed out.

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Application of a ceramic membrane contacting process for ozone and peroxone treatment of micropollutant contaminated surface water

Cited by 39 publications

References 48 publications

A Single Tube Contactor for Testing Membrane Ozonation

A Single Tube Contactor for Testing Membrane Ozonation

A Single Tube Contactor for Testing Membrane Ozonation

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

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