Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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The Characteristic of NOx Removal Using Catalyst-Corona Discharge

촉매-코로나방전을 이용한 NOx제거 특성

  • 고희석 (경남대학교 전자전기공학과) ;
  • 박재윤 (경남대학교 전자전기공학과) ;
  • 김종석 (경남대학교 대학원 전기공학과) ;
  • 이수정 (경남대학교 대학원 전기공학과)
  • Published : 2004.05.01
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Abstract

The catalytic effect of waterworks sludge on NOx removal in $BaTiO_3$pellets and sludge pellets combined packed-bed plasma reactor with plate-plate electrode geometry is measured for the various conditions. NOx removal rate is about 90[%] at $BaTiO_3$-sludge combined reactor used fresh sludge. $NO_2$ and $O_3$ as byproducts are significantly generated in only $BaTiO_3$ packed-bed plasma reactor, however, in $BaTiO_3$-sludge combined packed-bed reactor, $NO_2$ and $O_3$ are completely removed while $CO_2$ as by-products are observed from FTIR spectra. $NO_2$ and $O_3$ seem to react with metallic molecules, metal oxide, and organic compounds that are generally chlorophyll included in sludge. NOx removal rate increases with $O_2$ concentration increasing. Removal rates $NO_2$ and $O_3$ are independent of operating time and repetition measurement times.

우리가 생활하는 거의 모든 곳에서 발생하는 슬러지(sludge)는 악취, 토양오염 등 많은 문제점을 가지고 있으며, 대부분의 폐기물은 매립 또는 소각에 의해 처리되고 있으나 슬러지의 경우 두 가지 방법 모두 심각한 문제점을 가지고 있어, 대체 처리방법의 개발이 시급한 실정이다. 본 연구에서는 그 슬러지를 NOx제거용 촉매 펠렛(Pellet)재료로 재활용하기 위한 가능성을 타진하기 위하여 수돗물 정수장에서 발생되는 슬러지로 펠렛을 제작하여 $BaTiO_3$ 펠렛과 하이브리드 구조로 NOx제거용 플라즈마 반응기를 제작하였고, specific energy, 전압인가 방법, 슬러지의 양, 산소농도 변화에 따른 NOx제거 특성을 측정하고 슬러지 펠렛의 영향을 측정하고 분석하였다.

Keywords

References

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