Journal of the Korean GEO-environmental Society (한국지반환경공학회 논문집)

Korean Geo-Environmental Society (한국지반환경공학회)
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Removal Efficiency of Heavy Metals and Nutrients by Zeolite and Basic Oxygen Furnace Slag

제올라이트와 제강슬래그에 의한 중금속과 영양염류 복합오염물질의 제거 효과

  • Kim, Yongwoo (Environmental Standard Management Office, Korea Environmental Industry & Technology Institute) ;
  • Oh, Myounghak (Coastal Development & Ocean Energy Research Division, Korea Institute of Ocean Science & Technology) ;
  • Park, Junboum (Department of Construction & Environmental Engineering, Seoul National University) ;
  • Kwon, Osoon (Coastal Development & Ocean Energy Research Division, Korea Institute of Ocean Science & Technology)
  • Received : 2014.07.08
  • Accepted : 2014.08.19
  • Published : 2014.11.01
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Abstract

Permeable reactive barrier has been recognized as the one of representative methods for remediation of contaminated groundwater. Reactive barrier system containing two and more reactive materials can remove multiple contaminants such as nutritive salts and heavy metals. In this study, removal efficiency of multiple contaminants was evaluated when both zeolite and basic oxygen furnace slag were used as reactive materials. Sequential batch test which consists of two materials was performed to evaluate removal efficiency comparing the reaction order of them against nutritive slats including ammonium and phosphate and heavy metal including cadmium. As a result, zeolite-basic oxygen furnace slag sequence batch test showed the best efficiency for removal of multiple contaminants including nutritive salts and heavy metal.

투수성 반응벽체 공법은 지하수 오염을 정화하는 대표적인 방법 중의 하나이다. 영양염류와 중금속 등 여러 가지 오염물질이 동시에 존재하는 경우 두 가지 이상의 반응성 매질을 적용한 반응벽체공법으로 복합오염물질의 제거가 가능하다. 본 연구에서는 반응성 매질로 제올라이트와 제강슬래그를 함께 사용하는 경우 복합오염물질의 제거능을 평가하였다. 영양염류인 암모늄과 인산염, 중금속인 카드뮴이 혼합된 복합오염물질에 대하여 연속회분식실험을 통하여 제올라이트 및 제강슬래그와의 반응순서에 따른 오염물질 제거능을 분석하였다. 연속회분식실험 결과에 의하면 제올라이트-제강슬래그 순서로 반응하는 경우 영양염류와 중금속의 복합오염물질에 대한 제거능이 더 좋은 것으로 나타났다.

Keywords

References

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