Development of ozonation and reactive electrochemical membrane coupled process: Enhanced tetracycline mineralization and toxicity reduction

Zhi, Dan; Wang, Jianbing; Zhou, Yaoyu; Luo, Zirui; Sun, Yuqing; Wan, Zhonghao; Luo, Lin; Tsang, Daniel C.W.; Dionysiou, Dionysios D.

doi:10.1016/j.cej.2019.123149

Cited by 95 publications

(26 citation statements)

References 38 publications

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“…Our group has also investigated various REMs in the form of titanium-based metallic oxide electrodes, such as RuO 2 , SnO 2 -Sb, PbO 2 , and RuO 2 -Sb 2 O 5 -SnO 2 , and all electrodes have shown excellent performance for contaminant removal in both simulated and actual wastewaters [ 14 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ]. To date, many kinds of REMs with new catalytic layers have been developed for different purposes (see Figure 2 ) [ 2 , 5 , 6 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ].…”

Section: Coupling Ms and Anodic Eaops As An Integrated Technologymentioning

confidence: 99%

Membrane Separation Coupled with Electrochemical Advanced Oxidation Processes for Organic Wastewater Treatment: A Short Review

et al. 2020

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Research on the coupling of membrane separation (MS) and electrochemical advanced oxidation processes (EAOPs) has been a hot area in water pollution control for decades. This coupling aims to greatly improve water quality and focuses on the challenges in practical application to provide a promising solution to water shortage problems. This article provides a summary of the coupling configurations of MS and EAOPs, including two-stage and one-pot processes. The two-stage process is a combination of MS and EAOPs where one process acts as a pretreatment for the other. Membrane fouling is reduced when setting EAOPs before MS, while mass transfer is promoted when placing EAOPs after MS. A one-pot process is a kind of integration of two technologies. The anode or cathode of the EAOPs is fabricated from porous materials to function as a membrane electrode; thus, pollutants are concurrently separated and degraded. The advantages of enhanced mass transfer and the enlarged electroactive area suggest that this process has excellent performance at a low current input, leading to much lower energy consumption. The reported conclusions illustrate that the coupling of MS and EAOPs is highly applicable and may be widely employed in wastewater treatment in the future.

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Section: Coupling Ms and Anodic Eaops As An Integrated Technologymentioning

confidence: 99%

Membrane Separation Coupled with Electrochemical Advanced Oxidation Processes for Organic Wastewater Treatment: A Short Review

et al. 2020

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“…On the other hand, exposure to TRC leads to the development of antibiotic resistance genes [15][16][17]. Therefore, studies are undertaken on the application of various TRC decomposition/removal methods from water and wastewaters [18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, in the case of TRC, ozonation and AOPs ensure complete transformation of this molecule into intermediate products [5,21,22]. Although the AOPs allow complete degradation of TRC, they do not provide complete mineralization of oxidation products (OPs) [5,23,24].…”

Section: Introductionmentioning

confidence: 99%

Removal of Tetracycline Oxidation Products in the Nanofiltration Process

Żyłła

Ledakowicz

Boruta

et al. 2021

Water

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The possibility of removing tetracycline (TRC) from water in an integrated advanced oxidation and membrane filtration process was investigated. Ozonation and UV/H2O2 photooxidation were applied for the destruction of TRC. Six oxidation products (OPs) retaining the structural core of TRC have been identified. One new TRC oxidation product, not reported so far in the literature, was identified—ethyl 4-ethoxybenzoate. All identified OPs were effectively retained on the membrane in the nanofiltration process. However, chemical oxygen demand (COD) measurements of the filtrates showed that in the case of UV/H2O2 oxidation, the OPs passed through the membrane into the filtrate. Various water matrices were used in the research, including the river water untreated and after ozone treatment. It has been shown that organic matter present in surface water can improve pharmaceutical retention, although it contributes to significant membrane fouling. Pre-ozonation of the river water reduced the membrane fouling. The XPS analysis was used to show ozone and H2O2 influence on the top polymer layer of the membrane. It was shown that the oxidants can damage the amide bond of the polyamide.

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“…Therefore, process efficiency is often limited by the diffusion boundary layer at the solution/electrode in terface ("" 100 µm) [27]. Recently, the use of sub-stoichiometric tita nium oxide (TiO x ) reactive electrochemical membrane (REM) as anode has been developed [27][28][29][30][31][32][33]. Such anode material is able to strongly enhance current efficiency because of the higher electro-active surface area and convection-enhanced mass transport of pollutants from the bulk to the anode in flow-through operation [27,29,33,34].…”

Section: Introductionmentioning

confidence: 99%

Integration of sub-stoichiometric titanium oxide reactive electrochemical membrane as anode in the electro-Fenton process

Trellu

Rivallin

Cerneaux

et al. 2020

Chemical Engineering Journal

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Sub-stoichiometric titanium oxide ( T iO x ) reactive electrochemical membrane ( R EM) were integrated for the first time as anode in the electro-Fenton (EF) process. Hydroxyl radicals (•OH) were produced both in the retentate from Fenton's reaction and at the REM from anodic oxidation ( A O). Optimal mass transport conditions were implemented because of convection-enhanced mass transport of (i) organic pollutants towards the REM surface during filtration and (ii) dissolved 0 2 towards cathode active sites owing to the use of a 3D carbon felt cathode in flow-through configuration for H 2 0 2 generation. The efficiency of the REM/EF process was much higher than EF or REM used as standalone processes. For instance, taking paracetamol as target pollutant, (67 ± 2)% removal of 55 mg Li of initial TOC was achieved with a high mineralization current efficiency (MCE) of ( 43 ± 1)%. By comparison, standalone REM and EF processes achieved only 47% (MCE = 30%) and 31 % (MCE = 20%) of TOC removal, respectively. By monitoring TOC removal both in retentate and permeate, the effect of homogeneous oxidation in the bulk retentate and heterogeneous oxidation at the REM could be observed separately. It was thus highlighted that the efficiency of AO might be affected by the presence of • OH and Fe 2 + in the bulk. It was also emphasized a synergistic effect related to the formation of carboxylic acids in the bulk retentate that are more easily mineralized at the REM where both • OH-mediated oxidation and direct electron transfer occur.

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Development of ozonation and reactive electrochemical membrane coupled process: Enhanced tetracycline mineralization and toxicity reduction

Cited by 95 publications

References 38 publications

Membrane Separation Coupled with Electrochemical Advanced Oxidation Processes for Organic Wastewater Treatment: A Short Review

Membrane Separation Coupled with Electrochemical Advanced Oxidation Processes for Organic Wastewater Treatment: A Short Review

Removal of Tetracycline Oxidation Products in the Nanofiltration Process

Integration of sub-stoichiometric titanium oxide reactive electrochemical membrane as anode in the electro-Fenton process

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