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Selenium bio-recovery (removal) from wastewater to low ppb levels

  • 18 February, 2022
  • 16:00
  • Wageningen University, Environmental Technology
  • prof. dr CJN Buisman
  • dr RD van der Weijdendr ir J Weijma

Biological recovery of selenium (Se) for selenium-laden wastewater treatment holds promise as it could potentially provide a stable, sustainable Se supply and eliminate the toxic effects of Se contaminations. This thesis aimed to remove and recover selenium from simulated wastewater, investigating the main objective: to produce highly pure recoverable elemental selenium (Se0) with a relatively high selenate reduction rate. Two pathways to produce crystalline elemental selenium (Se0) for potential selenium recovery were proposed: the recrystallization of amorphous Se0 and the crystalline Se0 production from SeS2 by combining the selenate to selenite process with the sulfate-reducing process.

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Bingnan Song

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