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Effect of bipolar electrode material on the reclamation of urban wastewater by an integrated electrodisinfection/electrocoagulation process

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dc.contributor.author Llanos López, Javier
dc.contributor.author Cotillas Soriano, Salvador
dc.contributor.author Cañizares Cañizares, Pablo
dc.contributor.author Rodrigo Rodrigo, Manuel Andrés
dc.date.accessioned 2016-06-07T10:54:36Z
dc.date.available 2016-06-07T10:54:36Z
dc.date.issued 2014-04
dc.identifier.citation Water Research. Volume 53, 15 April 2014, Pages 329–338 es_ES
dc.identifier.issn 0043-1354
dc.identifier.uri http://hdl.handle.net/10578/9534
dc.description.abstract This work presents an integrated electrodisinfection/electrocoagulation (ED–EC) process for urban wastewater reuse that employs iron bipolar electrodes. Boron doped diamond (BDD) was used as the anode and stainless steel (SS) as the cathode. A perforated iron plate was introduced between the anode and cathode to function as a bipolar electrode. This ED–EC combined cell makes it possible to conduct the simultaneous removal of microbiological content and elimination of turbidity from urban wastewater. The results show that current densities greater than or equal to 6.70 A m−2 enable complete disinfection of the effluent and the removal of more than 90% of its initial turbidity. Hypochlorite and chloramines formed during the ED–EC process were found to be the main compounds responsible for the disinfection process. Furthermore, a cell configuration of cathode (inlet)-anode (outlet) improves the process performance by enhancing turbidity removal. Finally, the influence of the bipolar electrode material (iron or aluminium) was assessed. The results indicate that the efficiency of the electrodisinfection process depends mainly on the anodic material and is not influenced by the material of the bipolar electrode. In contrast, the removal of turbidity is more efficient when using iron as a bipolar electrode, especially at low current densities, due to the formation of a passive layer on the aluminium that hinders the dissolution of the bipolar electrode es_ES
dc.format application/pdf es_ES
dc.language.iso en es_ES
dc.publisher Elsevier es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject BDD es_ES
dc.subject Iron bipolar electrode es_ES
dc.subject Electrodisinfection es_ES
dc.subject Electrocoagulation es_ES
dc.subject Integrated process es_ES
dc.title Effect of bipolar electrode material on the reclamation of urban wastewater by an integrated electrodisinfection/electrocoagulation process es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.relation.projectID CTM2010- 18833/TECNO es_ES
dc.identifier.DOI 10.1016/j.watres.2014.01.041

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