Abstract

Selenium (Se) discharge into the environment is becoming a matter of increasing concern because it induces toxic effects to biota at low concentrations (several micrograms per liter). Industrial activities that include energy generation, metal and oil refining, mining, and agriculture irrigation generate effluents contaminated with selenium. Biological treatment of these effluents is gaining in popularity in recent years. Microbial reduction of selenium oxyanions to particulate elemental Se0 can be achieved in a number of bioreactor systems that are emerging as a viable bioremediation option because of their favorable cost, footprint, and treatment efficiency. Traditionally, granular sludge bioreactors (e.g., upflow anaerobic sludge blanket, UASB) have been tested for the treatment of selenium-laden wastewaters. Fluidized-bed bioreactors (FBBR) and packed-bed bioreactor systems were later adapted for Se treatment. The hydrogen-based hollow-fiber membrane biofilm reactor (MBfR) is a technology that delivers H2 gas as the electron donor by diffusion to the biofilm formed on non-porous hollow-fiber membranes. A hybrid electro-biochemical reactor (EBR) which uses electrons that are delivered from an external power source through electrodes to selenium-reducing bacteria growing on electrodes has been developed. Constructed wetlands may be useful when the wastewater is produced in large volumes, but they are sensitive to temperature fluctuations and seasonal variation of the vegetation, and they have a large footprint. If Se0 colloids are not captured efficiently within the bioreactor, a challenge is removing colloidal Se0 from the effluent. When properly recovered, Se0 can be a valuable product due to its photo-optical, semiconductive, and adsorptive properties.

Original languageEnglish (US)
Title of host publicationBioremediation of Selenium Contaminated Wastewater
PublisherSpringer International Publishing
Pages75-101
Number of pages27
ISBN (Electronic)9783319578316
ISBN (Print)9783319578309
DOIs
StatePublished - Sep 2 2017

Fingerprint

Selenium
pollutant source
selenium
Bioreactors
Pollution
bioreactor
Technology
Effluents
Biofilms
effluent
Waste Water
Sewage
footprint
biofilm
Electrodes
electrode
Wastewater
sludge
Electrons
membrane

Keywords

  • Bioremediation
  • Biotreatment
  • Selenium
  • Toxicity
  • Wastewater

ASJC Scopus subject areas

  • Engineering(all)
  • Chemical Engineering(all)
  • Environmental Science(all)
  • Immunology and Microbiology(all)
  • Chemistry(all)

Cite this

Staicu, L. C., Van Hullebusch, E. D., Rittmann, B., & Lens, P. N. L. (2017). Industrial selenium pollution: Sources and biological treatment technologies. In Bioremediation of Selenium Contaminated Wastewater (pp. 75-101). Springer International Publishing. https://doi.org/10.1007/978-3-319-57831-6_4

Industrial selenium pollution : Sources and biological treatment technologies. / Staicu, Lucian C.; Van Hullebusch, Eric D.; Rittmann, Bruce; Lens, Piet N.L.

Bioremediation of Selenium Contaminated Wastewater. Springer International Publishing, 2017. p. 75-101.

Research output: Chapter in Book/Report/Conference proceedingChapter

Staicu, LC, Van Hullebusch, ED, Rittmann, B & Lens, PNL 2017, Industrial selenium pollution: Sources and biological treatment technologies. in Bioremediation of Selenium Contaminated Wastewater. Springer International Publishing, pp. 75-101. https://doi.org/10.1007/978-3-319-57831-6_4
Staicu LC, Van Hullebusch ED, Rittmann B, Lens PNL. Industrial selenium pollution: Sources and biological treatment technologies. In Bioremediation of Selenium Contaminated Wastewater. Springer International Publishing. 2017. p. 75-101 https://doi.org/10.1007/978-3-319-57831-6_4
Staicu, Lucian C. ; Van Hullebusch, Eric D. ; Rittmann, Bruce ; Lens, Piet N.L. / Industrial selenium pollution : Sources and biological treatment technologies. Bioremediation of Selenium Contaminated Wastewater. Springer International Publishing, 2017. pp. 75-101
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