Performance of electrochemical oxidation and photocatalysis in terms of kinetics and energy consumption. New insights into the p-cresol degradation

Escudero, Carlos; Iglesias, Olalla; Dominguez, Sara; Rivero, Marı́a J.; Ortiz, Inmaculada

doi:10.1016/j.jenvman.2016.04.049

Cited by 33 publications

(21 citation statements)

References 38 publications

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“…Although SEO required lower Q than EO to accomplish complete depletion of HCQ, a little difference was observed between the EC requirements of SEO (101 kWh/m 3 and 769 kWh/kg TOC) and EO (102 kWh/m 3 and 778 kWh/kg TOC). It should be noted that higher values of EC were estimated for the degradation of HCQ than those reported in literature for the treatment of organic pollutants by EO using BDD [72] , [73] , [74] . An optimization of the hydrodynamic conditions of the flow cell would decrease the EC values.…”

Section: Resultsmentioning

confidence: 62%

Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

Bensalah

Midassi

Boutarfaïa

2020

Chemical Engineering Journal

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Highlights Hydroxychloroquine (HCQ) has the potential to be a persistent pollutant in water. Electrochemical oxidation with BDD anode (EO) degraded HCQ in all tested conditions. EO led to the release of Cl − ions and conversion of organic nitrogen to NO 3 − and NH 4 +. EO combined with UV light or ultrasound enhanced degradation kinetics and efficiency. Due to higher production of oxidants, EO combined with UV light used much less energy.

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Section: Resultsmentioning

confidence: 62%

Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

Bensalah

Midassi

Boutarfaïa

2020

Chemical Engineering Journal

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“…Degradation of MTLC by conventional treatments such as physical adsorption [7], coagulation, chlorination or biological [8] and bio-electrochemical [9] treatments has been studied, but these technologies report a low yield. Therefore, high-performance and low-cost processes such as Advanced Oxidation Processes (AOPs) are sought for the efficient degradation of this pesticide [3,[10][11][12][13][14][15][16].…”

Section: Of 13mentioning

confidence: 99%

“…Among AOPs, heterogeneous photocatalysis is effective for the removal of many recalcitrant organic contaminants from polluted waters [3,[10][11][12][13][14][15][16]. One of its main advantages is that solar light can activate the catalyst.…”

Section: Of 13mentioning

confidence: 99%

Comprehensive Kinetics of the Photocatalytic Degradation of Emerging Pollutants in a LED-Assisted Photoreactor. S-Metolachlor as Case Study

Rancaño¹,

Rivero²,

Mueses

et al. 2020

Catalysts

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Although the potential and beneficial characteristics of photocatalysis in the degradation of a good number of emerging pollutants have been widely studied and demonstrated, process design and scale-up are restrained by the lack of comprehensive models that correctly describe the performance of photocatalytic reactors. Together with the kinetics of degradation reactions, the distribution of the radiation field in heterogeneous photocatalytic systems is essential to the optimum design of the technology. Both the Local Volumetric Rate of Photon Absorption (LVRPA) and the Overall Volumetric Rate of Photon Absorption (OVRPA) help to understand this purpose. This work develops a Six-Flux radiation absorption–scattering model coupled to the Henyey–Greenstein scattering phase function to evaluate the LVRPA profile in a LED-assisted photocatalytic reactor. Moreover, the OVRPA has been calculated and integrated into the kinetic equation, accounting for the influence of the radiation distribution on the reaction rate. The model has been validated with experimental data for the degradation of S-Metolachlor (MTLC), and the set of operating variables that maximize the reactor performance, 0.5 g/L of TiO2 P25 and pH 3, has been determined.

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“…Nowadays, several treatment methods are available for degradation and removal of dyes from wastewater. A few of these methods include, chemical oxidation [4][5][6][7][8], filtration [9,10], biological treatment [11,12], biochemical degradations [6], ion-exchange removal [8], adsorption [13][14][15][16][17], photocatalysis [18,19]. In comparison with chemical and biological methods, membrane based method such as nanofiltration (NF) and utrafiltration (UF), have emerged a promising physical treatment method.…”

Section: Introductionmentioning

confidence: 99%

Comparative investigation of indigo blue dye removal efficiency of activated carbon and natural clay in adsorption/ultrafiltration system

Missaoui¹,

Tahri²,

Daramola³

et al. 2019

DWT

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In the present study, indigo blue dye removal efficiency of activated carbon (AC) and natural clay (NC) was evaluated and compared, firstly in an adsorption unit, and then in an adsorption coupling ultrafiltration (A/UF) system. Effect of operating variables like pH, contact time, adsorbent dosage, initial dyes concentration during the adsorption was investigated and consequently optimised. The optimal conditions were employed for the adsorbents during the removal of the dye in the A/UF system. The optimal amount of NC and AC was 0.4 g/L and 0.3 g/L, respectively, and NC and AC displayed adsorption capacity of 57 mg/g and 53 mg/g, respectively, at this condition. Application of UF reveals a decrease of membrane fouling for both adsorbents in A/UF system. In addition, colour retention, when the adsorbents were used in A/UF, increased significantly from 90.5% to 99% as compared to using adsorption only. The efficiency of the membrane regeneration was estimated by the determination of the water permeability after rinsing. It is noteworthy to mention that a total regeneration of the membrane after the application of continous hybrid A/UF was achieved, however, the use of UF alone exhibited a fouling decrease by 40%.

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Performance of electrochemical oxidation and photocatalysis in terms of kinetics and energy consumption. New insights into the p-cresol degradation

Cited by 33 publications

References 38 publications

Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

Comprehensive Kinetics of the Photocatalytic Degradation of Emerging Pollutants in a LED-Assisted Photoreactor. S-Metolachlor as Case Study

Comparative investigation of indigo blue dye removal efficiency of activated carbon and natural clay in adsorption/ultrafiltration system

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