Lazo, PamelaPamelaLazoHenrik K. HansenSebastián Franco PeñaClaudia GutiérrezAndrea LazoLisbeth M. Ottosen2025-08-252025-08-252018-10-0610.1016/j.jhazmat.2018.09.0902-s2.0-85054830937https://cris-uv-2.scimago.es/handle/123456789/3171WOS:000452926500009In the present work, an electrocoagulation technique was tested as a possible technological alternative for the treatment of selenium in wastewater from a petroleum refinery. For this purpose, a batch airlift reactor with air stirring was used. The sacrificial electrodes were made of iron to generate the necessary ferrous ions for the process. The results indicated a selenium removal of 90% from the wastewater after 6 h of treatment, achieving a decrease in concentration from 0.30 mg L−1 to 0.03 mg L−1. The current density was found to be an important variable for the process. In conclusion, the electrocoagulation process seems to be a feasible selenium removal technique applied to petroleum refinery wastewater.enacceso restringidoEngineering, CivilEngineering, EnvironmentalEnvironmental SciencesEnvironmental ChemistryEnvironmental EngineeringHealth, Toxicology And MutagenesisPollutionWaste Management And Disposalarticle