Scaling-up an integrated electrodisinfection-electrocoagulation process for wastewater reclamation

Cotillas, Salvador; Llanos, Javier; Moraleda, Inmaculada; Cañizares, Pablo; Rodrigo, Manuel A.

doi:10.1016/j.cej.2019.122415

Cited by 43 publications

(13 citation statements)

References 41 publications

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“…A similar trend is observed at 1.0 A, but the concentration of hypochlorite increases from the beginning of the experiment. Hypochlorite is a very reactive species which can react not only with microorganisms (disinfection) but also with other ions contained in the urine such ammonium, favoring the production of chloramines during electrolysis [38].…”

Section: Resultsmentioning

confidence: 99%

Disinfection of urines using an electro-ozonizer

Herraiz-Carboné

Cotillas

Lacasa

et al. 2021

Electrochimica Acta

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Section: Resultsmentioning

confidence: 99%

Disinfection of urines using an electro-ozonizer

Herraiz-Carboné

Cotillas

Lacasa

et al. 2021

Electrochimica Acta

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“…In any case however, the scale-up of EAOPs has been reported in some investigations. For example, Cotillas et al. (2020) , recently reported wastewater reclamation in an integrated electro-disinfection-electrocoagulation process ( Cotillas et al., 2020 ).…”

Section: Economic Aspects and Scale-up Of The Photo-assisted Eaopsmentioning

confidence: 99%

“…For example, Cotillas et al. (2020) , recently reported wastewater reclamation in an integrated electro-disinfection-electrocoagulation process ( Cotillas et al., 2020 ). Such approach, operates with a real secondary effluent and a flow rate of 50 L h −1 ; allowing complete E. coli depletion at current densities in the 5–10 A m −2 range.…”

Section: Economic Aspects and Scale-up Of The Photo-assisted Eaopsmentioning

confidence: 99%

“…The effectiveness of the EAOPs such as electrochemical oxidation ( Anfruns-Estrada et al., 2017 ; Bruguera-Casamada et al, 2016 , 2017 ; Candia-Onfray et al., 2018 ; Cano et al., 2016 ; Corona-Bautista et al., 2021 ; Cotillas et al, 2018 , 2020 ; Frontistis et al., 2017 ; Guitaya et al., 2015 ; Hernández-Pimentel et al., 2020 ; Herraiz-Carboné et al, 2020a , 2020b ; Medrano-Rodríguez et al., 2020 ; Mousset et al., 2018 ; Pacheco-Álvarez et al., 2019 ), electrocoagulation ( Anfruns-Estrada et al., 2017 ; Villalobos-Lara et al., 2021 ), electro-Fenton ( Campos et al., 2020 ; Droguett et al., 2020 ; Olvera-Vargas et al., 2019 ; Ren et al., 2020 ; Robles et al., 2020a ; Salazar et al., 2019 ; Thiam et al., 2020 ) and coupled EAOPs with other technologies ( Cotillas et al., 2016b ; Hashim et al., 2020 ; Jhones dos Santos et al., 2021 ; Llanos et al., 2015 ) has been proven by several research works worldwide on the inactivation of pathogens and the treatment of wastewater.…”

Section: Introductionmentioning

confidence: 99%

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Photo-assisted electrochemical advanced oxidation processes for the disinfection of aqueous solutions: A review

et al. 2021

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Disinfection is usually the final step in water treatment and its effectiveness is of paramount importance in ensuring public health. Chlorination, ultraviolet (UV) irradiation and ozone (O 3 ) are currently the most common methods for water disinfection; however, the generation of toxic by-products and the non-remnant effect of UV and O 3 still constitute major drawbacks. Photo-assisted electrochemical advanced oxidation processes (EAOPs) on the other hand, appear as a potentially effective option for water disinfection. In these processes, the synergism between electrochemically produced active species and photo-generated radicals, improve their performance when compared with the corresponding separate processes and with other physical or chemical approaches. In photo-assisted EAOPs the inactivation of pathogens takes place by means of mechanisms that occur at different distances from the anode, that is: (i) directly at the electrode’s surface (direct oxidation), (ii) at the anode’s vicinity by means of electrochemically generated hydroxyl radical species (quasi-direct), (iii) or at the bulk solution (away from the electrode surface) by photo-electrogenerated active species (indirect oxidation). This review addresses state of the art reports concerning the inactivation of pathogens in water by means of photo-assisted EAOPs such as photo-electrocatalytic process, photo-assisted electrochemical oxidation, photo-electrocoagulation and cathodic processes. By focusing on the oxidation mechanism, it was found that while quasi-direct oxidation is the preponderant inactivation mechanism, the photo-electrocatalytic process using semiconductor materials is the most studied method as revealed by numerous reports in the literature. Advantages, disadvantages, trends and perspectives for water disinfection in photo-assisted EAOPs are also analyzed in this work.

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“…Electrolysis with diamond anodes could be considered as an appropriate technology for the removal of ARB due to its efficiency in the disinfection of urban treated and surface water [4][5][6]. This process is based on the in-situ production of disinfectants from the oxidation of the ions naturally contained in the effluent.…”

Section: Introductionmentioning

confidence: 99%