한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권2호
  • /
  • Pages.258-263
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  • 2006
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

돈사폐수의 혐기성 질소제거에 있어서 온도의 영향 : 낮은 현장 온도범위에서의 활성

Effects of Temperature in Anaerobic Nitrogen Removal Process from Piggery Waste : Activities in Ranges of Low Field-temperature

  • 황인수 (상주시축산폐수처리사업소) ;
  • 민경석 (경북대학교 환경공학과)
  • Hwang, In-Su (Office of Livestock Wastewater Treatment Plant, Sanju city) ;
  • Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
  • 투고 : 2005.10.11
  • 심사 : 2005.12.01
  • 발행 : 2006.03.30
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초록

ANAMMOX (Anaerobic ammonium oxidation) reactor, which was cultivated ANAMMOX bacteria in mesophilic condition ($35^{\circ}C$), was operated to investigate the effects of temperature. In $20{\sim}30^{\circ}C$ of operation condition, which was assumed as field-temperature, total N removal and $NH_4-N$ removal rate were declined from about 2.50 and $1.27kg\;N/{m^3}_{reactor}-day$ (0.06 and 0.03 kg N/kgVSS/day) to 1.62 and $0.41kg\;N/{m^3}_{reactor}-day$ (0.04 and 0.01 kg N/kgVSS/day), In this range of temperature, ANAMMOX had very low activities but acid fermentation bacteria and denitrifiers, which were competitors of substrates, had high activities relatively. Though operation temperature was higher than inhibition condition for two months, ANAMMOX activities could not been recovered once they were inhibited by low temperature. This fact was resulted from very slow doubling time of ANAMMOX bacteria. This study shows that maintenance device of optimal temperature is necessary required in field application of ANAMMOX.

키워드

참고문헌

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