Removal of residual anti-inflammatory and analgesic pharmaceuticals from aqueous systems by electrochemical advanced oxidation processes. A review

Feng, Ling; Hullebusch, Eric D. van; Rodrigo, Manuel A.; Esposito, Giovanni; Oturan, Mehmet A.

doi:10.1016/j.cej.2013.05.061

Cited by 474 publications

(237 citation statements)

References 193 publications

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“…[20,24,29] Consequently, EAOP has drawn increasing attention, which can be evidenced by the number of publications shown in Figure 1, and witnessed by recently published reviews [20,23,24,26,[30][31][32][33][34].…”

Section: Aop /Eaopmentioning

confidence: 99%

“…In Figure 2(b) (top), we can see the simplified model of a water molecule that is adsorbed on the electrode surface [30,36,39]. In general, the oxidised products include…”

Section: Radicals and Degradation Reactionsmentioning

confidence: 99%

“…The cell can consist of an electrode array, as shown in Figure 3(b), which features an improved degradation efficiency [31]. On the other hand, the cathode can be replaced with cheap materials (c, d), such as a carbon electrode (graphite), even metal ones (cast iron, stainless steel, copper) or air-diffusion electrodes to boost the production of H 2 O 2 [30,41]. The configuration might also behave as a flow-through cell (cylinder or porous panels) (d, e) to increase the transportation efficiency [33,36].…”

Section: Cellmentioning

confidence: 99%

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Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)

Fang

Megharaj

Naidu

2017

Journal of Advanced Oxidation Technologies

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Abstract:Per-and polyfluoroalkyl substances (PFASs) have been recently listed as emerging contaminants (ECs) and persistent organic pollutants (POPs) due to their human and environmental health concerns. In the last 10 years, their detection and remediation have progressed significantly. Herein, we critically review recent developments in electrochemical advanced oxidation process (EAOP) towards their remediation. Particular attentions are paid to perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), which present the main concerns of PFASs at this time. Due to the persistence of those PFASs, other remediation approaches may experience difficulty in degrading them, whilst EAOP has demonstrated success. The fundamentals of EAOP are highlighted and the scale-up application is discussed regarding the future research directions.

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Section: Aop /Eaopmentioning

confidence: 99%

“…In Figure 2(b) (top), we can see the simplified model of a water molecule that is adsorbed on the electrode surface [30,36,39]. In general, the oxidised products include…”

Section: Radicals and Degradation Reactionsmentioning

confidence: 99%

Section: Cellmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)

Fang

Megharaj

Naidu

2017

Journal of Advanced Oxidation Technologies

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“…The widespread use of pharmaceuticals and the generally inefficient removal of such contaminants by most wastewater treatment plants (WWTPs) are the main reasons for their frequent transformation products which may be more persistent or toxic than the parent compounds if complete mineralization is not attained [2,7,8,11,12].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of removal of three widespread pharmaceuticals by two clay materials

Dordio

Miranda

Ramalho

et al. 2017

Journal of Hazardous Materials

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“…Furthermore, BDD anodes have a high overpotential for the oxygen evolution reaction (1.3 V) compared with the platinum anode (0.3 V).The ability of BDD to mineralize a wide range of recalcitrant organic compounds and actual wastewaters were reviewed by Panizza and Cerisola [27] and Anglada et al [26]. Relevant to the present work the degradation of carboxylic acids [30,31], landfill leachates [32,33], industrial saline wastewaters [34,35], emerging contaminants [36,37] and reverse osmosis concentrates [38] are highlighted.…”

Section: Introductionmentioning

confidence: 99%

Remediation of wastewaters containing tetrahydrofuran. Study of the electrochemical mineralization on BDD electrodes

Urtiaga

Fernández-Castro

Gómez

et al. 2014

Chemical Engineering Journal

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This work contributes to the development of electro-oxidation on commercial boron doped diamond (BDD) anodes as an efficient and versatile environmental technology to deal with remediation of tetrahydrofuran (THF) polluted industrial wastewaters.Working with an undivided flow-by electrochemical cell, a systematic experimental study has been carried out to analyze the influence of the following operation variables: i) initial THF concentrations in the range 500-1100 mg/L ii) supporting electrolyte, Na 2 SO 4 and NaCl and iii) current density in the range 300-1200 A/m 2 . The performance of the oxidation process was assessed through the change in the concentration of THF, chemical oxygen demand (COD), and total organic carbon (TOC) being the current density the variable that exerted the most positive kinetic influence; more precisely the reduction of COD after 60 minutes changed from 40 % at j app = 300 A/m 2 to 95.5 % at j app =1200 A/m 2 , whereas the reductions of TOC were typically higher than 95 % for a value of the specific charge of Q=10 A/hL. Besides, THF oxidation products have been analyzed, and the reactions' pathway are proposed.Finally, the formation of chloride by-products, such as perchlorate was assessed observing that it was hindered at low current densities. In the view of these findings, it is concluded that THF oxidation on BDD anodes should be better performed at low current densities, i.e. 300 A/m 2 for the type of wastewaters analyzed in the present work, to reach a compromise between effective degradation and the formation of undesirable chlorinated by-products.

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Removal of residual anti-inflammatory and analgesic pharmaceuticals from aqueous systems by electrochemical advanced oxidation processes. A review

Cited by 474 publications

References 193 publications

Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)

Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)

Mechanisms of removal of three widespread pharmaceuticals by two clay materials

Remediation of wastewaters containing tetrahydrofuran. Study of the electrochemical mineralization on BDD electrodes

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