Selenium removal from petroleum refinery wastewater using an electrocoagulation technique

Henrik K. Hansen*, Sebastián Franco Peña, Claudia Gutiérrez, Andrea Lazo, Pamela Lazo, Lisbeth M. Ottosen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In 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.
Original languageEnglish
JournalJournal of Hazardous Materials
Volume364
Pages (from-to)78-81
ISSN0304-3894
DOIs
Publication statusPublished - 2018

Keywords

  • Current density
  • Electrocoagulation
  • Iron hydroxides
  • Oxidizing medium
  • Selenium

Cite this

Hansen, Henrik K. ; Peña, Sebastián Franco ; Gutiérrez, Claudia ; Lazo, Andrea ; Lazo, Pamela ; Ottosen, Lisbeth M. / Selenium removal from petroleum refinery wastewater using an electrocoagulation technique. In: Journal of Hazardous Materials. 2018 ; Vol. 364. pp. 78-81.
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title = "Selenium removal from petroleum refinery wastewater using an electrocoagulation technique",
abstract = "In 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.",
keywords = "Current density, Electrocoagulation, Iron hydroxides, Oxidizing medium, Selenium",
author = "Hansen, {Henrik K.} and Pe{\~n}a, {Sebasti{\'a}n Franco} and Claudia Guti{\'e}rrez and Andrea Lazo and Pamela Lazo and Ottosen, {Lisbeth M.}",
year = "2018",
doi = "10.1016/j.jhazmat.2018.09.090",
language = "English",
volume = "364",
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journal = "Journal of Hazardous Materials",
issn = "0304-3894",
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Selenium removal from petroleum refinery wastewater using an electrocoagulation technique. / Hansen, Henrik K.; Peña, Sebastián Franco; Gutiérrez, Claudia; Lazo, Andrea; Lazo, Pamela; Ottosen, Lisbeth M.

In: Journal of Hazardous Materials, Vol. 364, 2018, p. 78-81.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Selenium removal from petroleum refinery wastewater using an electrocoagulation technique

AU - Hansen, Henrik K.

AU - Peña, Sebastián Franco

AU - Gutiérrez, Claudia

AU - Lazo, Andrea

AU - Lazo, Pamela

AU - Ottosen, Lisbeth M.

PY - 2018

Y1 - 2018

N2 - In 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.

AB - In 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.

KW - Current density

KW - Electrocoagulation

KW - Iron hydroxides

KW - Oxidizing medium

KW - Selenium

U2 - 10.1016/j.jhazmat.2018.09.090

DO - 10.1016/j.jhazmat.2018.09.090

M3 - Journal article

VL - 364

SP - 78

EP - 81

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -