Use of conductive-diamond electrochemical-oxidation for the disinfection of several actual treated wastewaters

Cano, A.; Cañizares, Pablo; Dı́az, Carlos; Sáez, Cristina; Rodrigo, Manuel A.

doi:10.1016/j.cej.2012.09.071

Cited by 77 publications

(66 citation statements)

References 24 publications

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“…BDD anodes have been successfully used to treat domestic and industrial wastewater (Martinez-Huitle and Ferro 2006), to produce strong oxidants (Cano et al 2012), and to analyze different organic and inorganic species (Svorc et al 2014). Likewise, several researchers (Bensalah et al 2013;Marselli et al 2003;Michaud et al 2000;Serrano et al 2002) have indicated that strong oxidants can be produced at the surface of BDD anodes by anodic oxidation of water during the electrolysis of wastewater and the nature of supporting electrolyte and current density have a strong influence on this production.…”

Section: Resultsmentioning

confidence: 99%

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Dbira

Bensalah

Boutarfaïa

et al. 2014

Environ Sci Pollut Res

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In this work, the electrochemical oxidation of synthetic urine by anodic oxidation using boron-doped diamond as anode and stainless steel as cathode was investigated. Results show that complete depletion of chemical oxygen demand (COD) and total organic carbon (TOC) can be attained regardless of the current density applied in the range 20-100 mA cm(-2). Oxalic and oxamic acids, and, in lower concentrations, creatol and guanidine were identified as the main intermediates. Chloride ions play a very important role as mediators and contribute not only to obtain a high efficiency in the removal of the organics but also to obtain an efficient removal of nitrogen by the transformation of the various raw nitrogen species into gaseous nitrogen through chloramine formation. The main drawback of the technology is the formation of chlorates and perchlorates as final chlorine products. The increase of current density from 20 to 60 mA cm(-2) led to an increase in the rate of COD and TOC removals although the process becomes less efficient in terms of energy consumption (removals of COD and TOC after applying 18 Ah dm(-3) were 93.94 and 94.94 %, respectively, at 20 mA cm(-2) and 89.17 and 86.72 %, respectively, at 60 mA cm(-2)). The most efficient conditions are low current densities and high temperature reaching total mineralization at an applied charge as low as 20 kAh m(-3). This result confirmed that the electrolysis using diamond anodes is a very interesting technology for the treatment of urine.

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Section: Resultsmentioning

confidence: 99%

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Dbira

Bensalah

Boutarfaïa

et al. 2014

Environ Sci Pollut Res

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“…This observation strongly suggests that electrochemical oxidation could be applicable to the disinfection of waters from other sources. The technique has also shown its potential in the treatment of municipal wastewaters [133] and for disinfection in seawater desalination systems where biofouling of the desalination plant membranes can be prevented without using chlorination [134]. Total removal of coliform bacteria was achieved with very different raw wastewaters and the main disinfectants…”

Section: Disinfection Of Wastewater and Drinking Watermentioning

confidence: 98%

“…ACCEPTED MANUSCRIPT 23 produced depended on the applied current density, the concentration of chlorides and the concentration of non-oxidized nitrogen in the electrolyte [133].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Recent developments of electro-oxidation in water treatment — A review

Särkkä

Bhatnagar

Sillanpää

2015

Journal of Electroanalytical Chemistry

347

129

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“…Bench and fullscale results demonstrated monochloramine to be effective Water Environment Research, Volume 85, Number 10-Copyright © 2013 Water Environment Federation 1315 in controlling biofouling in cooling systems using secondary-treated municipal effluent and was also able to control the biological growth in recirculating cooling systems successfully when the biocide dose was adjusted to maintain monochloramine residuals above 3 mg/L. The process of electrochemical oxidation with conductive diamond anodes for the disinfection of treated municipal wastewater for reuse was investigated at labscale in terms of E. coli removal (Cano et al, 2012).…”

Section: Othermentioning

confidence: 99%

Water Reclamation and Reuse

Pei¹,

Xie²,

Ong³

et al. 2013

Water Environment Research

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A review of the literature published in 2012 on topics related to water reclamation and reuse is presented. This review is divided into the following sections: (1) General: extent of reuse, research needs, guidelines and monitoring, and health effects, (2) Treatment technologies: integrated process design, membrane treatment, membrane bioreactors, electrocoagulation, ion exchange and adsorption, wetlands, managed aquifer recharge, and (3) Planning and management: public acceptance and education, economics/pricing, water quality planning and management and project/case studies. It can be seen from this review that much of the treatment technology research has focused on membrane treatment, integrated designs and other innovative technologies.

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Use of conductive-diamond electrochemical-oxidation for the disinfection of several actual treated wastewaters

Cited by 77 publications

References 24 publications

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Recent developments of electro-oxidation in water treatment — A review

Water Reclamation and Reuse

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