Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Treatment of Exhaust Pollutants from a Lime Kiln of Paper-mill with Micro-bubble System

마이크로버블 장치를 이용한 제지공정 소성로 배기 오염물질 처리

  • Jung, Jae-Ouk (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan)
  • 정재억 (부산가톨릭대학교 환경공학과) ;
  • 정용준 (부산가톨릭대학교 환경공학과)
  • Received : 2020.09.10
  • Accepted : 2020.11.03
  • Published : 2020.11.30
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Abstract

This work was performed to develop a dip injection wet scrubber (DIWS) system with chlorine dioxide as the oxidant. The exhaust pollutants from a lime kiln of paper-mill were introduced to the system. When NaClO3 was used to oxidize NO into NO2, the oxidation was unsatisfactory and the combination of HNO3 or H2SO4 was required for 100% oxidation. ClO2 is recommended to oxidize NO and SO2 effectively. With the combination of 1st stage of DIWS and ClO2, 57.1% of NOx and 98% of SO2 were effectively removed. In the case of 2nd stage of DIWS and ClO2, 93.5% of NOx and 99% of SO2 were removed. The ClO2+DIWS process was superior to the ClO2+Scrubber process in terms of investment, running cost and NOx removal efficiency.

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References

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