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Optimization of an integrated electrodisinfection/electrocoagulation process with Al bipolar electrodes for urban wastewater reclamation

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dc.contributor.author Cotillas Soriano, Salvador
dc.contributor.author Llanos López, Javier
dc.contributor.author Cañizares Cañizares, Pablo
dc.contributor.author Mateo Fernández, Sara
dc.contributor.author Rodrigo Rodrigo, Manuel Andrés
dc.date.accessioned 2016-06-08T07:38:18Z
dc.date.available 2016-06-08T07:38:18Z
dc.date.issued 2013-04
dc.identifier.citation Water Research. Volume 47, Issue 5, 1 April 2013, Pages 1741–1750 es_ES
dc.identifier.issn 0043-1354
dc.identifier.uri http://hdl.handle.net/10578/9571
dc.description.abstract In this work, a novel integrated electrochemical process for urban wastewater regeneration is described. The electrochemical cell consists in a Boron Doped Diamond (BDD) or a Dimensionally Stable Anode (DSA) as anode, a Stainless Steel (SS) as cathode and a perforated aluminum plate, which behaves as bipolar electrode, between anode and cathode. Thus, in this cell, it is possible to carry out, at the same time, two different electrochemical processes: electrodisinfection (ED) and electrocoagulation (EC). The treatment of urban wastewater with different anodes and different operating conditions is studied. First of all, in order to check the process performance, experiments with synthetic wastewaters were carried out, showing that it is possible to achieve a 100% of turbidity removal by the electrodissolution of the bipolar electrode. Next, the effect of the current density and the anode material are studied during the ED–EC process of actual effluents. Results show that it is possible to remove Escherichia coli and turbidity simultaneously of an actual effluent from a WasteWater Treatment Facility (WWTF). The use of BDD anodes allows to remove the E. coli completely at an applied electric charge of 0.0077 A h dm−3 when working with a current density of 6.65 A m−2. On the other hand, with DSA anodes, the current density necessary to achieve the total removal of E. coli is higher (11.12 A m−2) than that required with BDD anodes. Finally, the influence of cell flow path and flow rate have been studied. Results show that the performance of the process strongly depends on the characteristics of the initial effluent (E. coli concentration and Cl−/NH4+ initial ratio) and that a cell configuration cathode (inlet)–anode (outlet) and a higher flow rate enhance the removal of the turbidity from the treated effluent 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 DSA es_ES
dc.subject Aluminum bipolar electrode es_ES
dc.subject Electrodisinfection es_ES
dc.subject Electrocoagulation es_ES
dc.subject Integrated process es_ES
dc.title Optimization of an integrated electrodisinfection/electrocoagulation process with Al bipolar electrodes for urban wastewater reclamation 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.2012.12.029

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