Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Removal Characteristics of NOx Using a Soil-Biofilter

토양 Bio-Filter를 이용한 질소산화물 제거특성

  • Cho Ki-Chul (Department of Environmental & Science, Dongnam Health College) ;
  • Ko Byeung-Ik (Environmental Management Corporation) ;
  • Lee Nae-Hyun (Korea Environmental Technology Consulting Hotline) ;
  • Cho Il-Hyoung (Gyeonggi Innovation Corporation)
  • 조기철 (동남보건대학 환경생명과학과) ;
  • 고병익 (환경관리공단 토양지하수사업처) ;
  • 이내현 (한국환경종합연구소 환경사업팀) ;
  • 조일형 (경기지방공사 광교사업처)
  • Published : 2006.02.01
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Abstract

Soil biofiltration is an environmentally-sound technology for elimination of VOCs, odorous and NOx compounds from a low concentration, high volume waste gas streams because of its simplicity and cost-effectiveness. This study was performed to evaluate effect of removal of gaseous NOx using a soil and a yellow soil. Over $60\%\;and\;48\%$ of NOx from a soil and a yellow soil was removed at the inlet NO concentrations of $423\~451$ppb, respectively. The bio-filter using a soil media was capable of purifying NOx with a different natural processes. Although some of the processes are quite complex, they can broadly be summarized as adsorption into soil pore water, and biochemical transformations by soil bacteria. When the filteration bio-reactor was applied to a soil and a yellow soil, effective NOx removal was obtained for several times and months. These results show that a soil biofilter can be of use as an alternative advanced NOx treatment system.

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References

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