Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Characteristics of Ammonia Removal by Natural Neutralizer

천연중화제를 이용한 암모니아 제거특성

  • Kim, Tak-Hyun (Cleaner Production Technology R&D Center, Korea Institute of Industrial Technology) ;
  • Park, Hyung-Yong (Yoowon Enviro-Tech. Co., Ltd.) ;
  • Kim, Sangyong (Cleaner Production Technology R&D Center, Korea Institute of Industrial Technology)
  • 김탁현 (한국생산기술연구원 청정생산기술개발센터) ;
  • 박형용 (유원환경기술(주)) ;
  • 김상용 (한국생산기술연구원 청정생산기술개발센터)
  • Received : 1999.03.02
  • Accepted : 2000.01.14
  • Published : 2000.04.30
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Abstract

The characteristics of ammonia removal by natural neutralizer were studied by using a scrubber type equipment. As operation parameters, neutralizer dilution ratio, neutralizer inlet flowrate, air flowrate and initial ammonia concentration were selected and their effects on ammonia removal efficiency were investigated. The optimal removal effect was achieved at neutralizer dilution ratio of 1.0% and neutralizer inlet flowrate of $60m{\ell}/min$. On the other hand, with respect to air flowrate and initial ammonia concentration, there was no significant effect on removal efficiency, when loading rate was considered. In addition, ammonia removal reaction was investigated by analyzing the ammonia oxides, such as nitrites and nitrates, after reacting ammonium solution with natural neutralizer. The result shows a partial oxidation by natural neutralizer besides dominant absorption of ammonia.

천연중화제의 스크러버 타입의 탈취장치에 의한 암모니아 제거반응 특성 및 중화반응에의 산화반응의 관여여부에 대하여 연구하였다. 중화제 희석비 및 유입유량, 공기유량, 암모니아 초기 농도를 운전인자로 선정하여 이들이 암모니아 제거효율에 미치는 영향을 살펴본 결과, 중화제 희석비는 1.0%, 중화제 유입유량은 $60m{\ell}/min$이 적절하고, 암모니아 초기농도 및 공기유량에 대해서는 loading rate를 함께 고려하면 제거효율에 큰 영향성은 나타내지 않았다. 암모니아의 중화반응에 산화반응의 관여여부를 살펴본 결과, 암모니아의 아질산염 및 질산염으로의 산화반응이 확인되었으며, 중화제량이 증가할수록 그 산화반응의 진행정도도 증가함을 확인하였다. 즉, 중화제에 의한 흡수현상과 함께 부분적으로 산화반응이 관여함을 확인하였다.

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