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dc.contributor.authorGarcía-Delgado, R.A. 
dc.contributor.authorNieto-Castilo, A
dc.contributor.authorVillen-Guzman, Maria
dc.contributor.authorCerrillo-Gonzalez, Maria del Mar
dc.contributor.authorGomez-Lahoz, Cesar 
dc.contributor.authorVereda-Alonso, Carlos 
dc.contributor.authorPaz-Garcia, Juan Manuel
dc.contributor.authorRodriguez-Maroto, Jose Miguel 
dc.date.accessioned2019-10-08T07:53:58Z
dc.date.available2019-10-08T07:53:58Z
dc.date.created2019
dc.date.issued2019-10-08
dc.identifier.urihttps://hdl.handle.net/10630/18535
dc.description.abstractA laboratory study has been carried out to determine the feasibility of in situ remediation of chromium (VI) contaminated soil using electrodialysis. In a classic setup, this technique implies the application of a low intensity direct current to the soil, which is separated from the electrode compartments by ion-exchange membranes. If the pollutants are ionic compounds, they can be forced to migrate to the oppositely charged electrode by electro-migration. Membranes selectively impede the flow of ions in the electrode compartments back to the soil. If a metal species is naturally present as an anion, mobilization from the soil at alkaline pH can be realized and, at the same time, the mobilization of other metal cations that occur at low pH can be minimized. Experiments have been carried out with clayey soils (kaolinite clay and soil clay mixtures) that have been characterized and then contaminated by mixing with a potassium dichromate solution for several days. Initial Cr (VI) content ranges from 500 to 4000 mg/kg. Treatment tests were carried out in an acrylic laboratory cells consisting of a central soil compartment and two electrode compartments located at both ends of the column. Dimensionally stable titanium electrodes coated with mixed metal oxides were placed in the electrode compartments. 0.01M Na2SO4 electrolytes were recirculated through them from two 1-liter deposits using a peristaltic pump. Two commercial ion exchange membranes separated the anolyte and catholyte compartments from the soil in the standard configuration. A programmable DC: power supply was connected to the electrodes and a computer for data acquisition.en_US
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. The authors acknowledge the financial support from the "Plan Propio de Investigación de la Universidad de Málaga" with project numbers PPIT.UMA.D1; PPIT.UMA.B1.2017/20 and PPIT.UMA.B5.2018/17. This work has also received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778045.en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectElectrodiálisisen_US
dc.subject.otherElectrodialytic remediationen_US
dc.titleImproving Cr (VI) Extraction through Electrodialysisen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.centroFacultad de Cienciasen_US
dc.relation.eventtitleThe 17th International Symposium on Electrokinetic Remediation (EREM 2019)en_US
dc.relation.eventplaceSan Miguel de Allende (Guanajuato, México)en_US
dc.relation.eventdate22 - 27 septiembre de 2019en_US


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