Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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The Effect of Genenal Ion for Biological Perchlorate Treatment from Zinc Smelting Inorganic Wastewater

아연제련소 무기성폐수 중 간섭이온이 생물학적 퍼클로레이트 처리에 미치는 영향

  • Kim, Shin-Jo (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research) ;
  • Lee, Ki-Yong (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research) ;
  • Lee, Ki-Cheol (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research) ;
  • Park, Sang-Min (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research) ;
  • Kwon, Oh-Sang (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research) ;
  • Jung, Dong-Il (Water Environmental Control Research Division Water Environmental Research Department National Institute of Environmental Research)
  • 김신조 (국립환경과학원 물환경제어연구과) ;
  • 이기용 (국립환경과학원 물환경제어연구과) ;
  • 이기철 (국립환경과학원 물환경제어연구과) ;
  • 박상민 (국립환경과학원 물환경제어연구과) ;
  • 권오상 (국립환경과학원 물환경제어연구과) ;
  • 정동일 (국립환경과학원 물환경제어연구과)
  • Received : 2010.04.19
  • Accepted : 2010.07.30
  • Published : 2010.09.30
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Abstract

This study was conducted to provide a technical solution to treat effectively perchlorate from inorganic wastewater of zinc smelting. Despite an inhibition dissolved inorganic substances in the wastewater discharged from zinc smelting has demonstrated with the activity of microbes, biological treatment technology could reduce perchlorate to a satisfactory level under such stressful conditions. It was found that either conductivity or $SO{_4}^{2-}$ concentration of the wastewater was able to be used as the adequate index and the values were $2,450{\mu}S/cm$ and 1,200 ppm respectively. When $SO{_4}^{2-}$ increased from 0 to 16,000 ppm (conductivity : $428{\rightarrow}24,800{\mu}S/cm$), perchlorate biodegradation rate was reduced due to 1/10 times from 0.0365 to 0.0033/h, however, most of perchlorate was removed under the condition of hydraulic retention time (HRT) at 0.5day and mixed liquor volatile suspended solid (MLVSS) at 2,000 ~ 3,000 ppm.

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References

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