대한환경공학회지 (Journal of Korean Society of Environmental Engineers)
- 제22권10호
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- Pages.1893-1904
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- 2000
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- 1225-5025(pISSN)
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- 2383-7810(eISSN)
암모니아 탈기공정을 이용한 침출수의 암모니아성 질소제거(I)
Removal of Ammonia-Nitrogen Contained in Landfill Leachate by Ammonia Stripping(I)
- Lee, Byung-Jin (School of Environmental and Urban System Engineering, Ajou University) ;
- Cho, Soon-Haing (School of Environmental and Urban System Engineering, Ajou University)
- 투고 : 2000.04.25
- 심사 : 2000.08.18
- 발행 : 2000.10.30
초록
질소제거를 위한 처리기술은 아직까지는 주로 생물학적인 처리기술에 의존하고 있는 실정이다. 그러나 생물학적인 처리기술은 하수 등과 같은 저농도 암모니아성 질소성분을 함유한 폐수에 대해서는 비교적 광범위하게 정립되어 있는 반면, 질소성분외에 난분해성 및 독성물질을 고농도로 함유하고 있는 침출수 및 산업폐수에 생물학적 처리기술을 적용하는 방법은 처리효율면에서 한계가 있다. 따라서 본 연구에서는 질소 처리기술이 비교적 정립되어 있지 않은 고농도의 암모니아성 질소 성분을 함유한 침출수를 대상으로 생물학적 처리공정의 이전에 질소제거를 위한 암모니아 탈기공정의 적용가능성을 타진하고 자원 재활용 측면을 고려하여 처리된 질소성분의 회수 가능성을 조사하는 데 목적을 두었다. 실험결과 암모니아 탈기공정을 위하여 pH를 조정하기 위해서는 NaOH보다
Nitrogen compounds are one of the major pollutants which cause eutrophication problems of the river or lake and red tides problems of the ocean. Currently available technologies for the removal of nitrogen compounds are mostly biological treatment. However, biological treatment is only effective for the wastewater which contains low concentration of nitrogen compounds. Leachate from solid waste landfill or industrial wastewater which contains high concentration of nitrogen can not be effectively treated by most of the currently available biological treatment technologies. With this connection. the objective of this study is to examine the applicability of ammonia stripping technology for the removal of high concentration of ammonia nitrogen compounds of the leachate from solid waste landfill. It can be concluded that ammonia stripping technology which was placed before the biological treatment process was very effective for the removal of high concentration of ammonium compounds. The chemical cost for the ammonia stripping was 16 percent higher than MLE process, so other methods like sludge recycling are needed for the reduction of operation cost. Further details are discussed in this paper.