KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Vertical Flow Zeolite-Filled Reed Bed for Treatment of Artificial Sewage with Intermittent Feeding

수직 흐름 제올라이트 갈대 여과상의 간헐적 주입에 의한 인공하수 처리

  • 서정윤 (창원대학교 공과대학 환경공학과) ;
  • 김태형 (창원대학교 공과대학 환경공학과) ;
  • 최민수 (창원대학교 공과대학 환경공학과)
  • Published : 2003.04.01
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Abstract

The artificial sewage was treated using a vertical flow zeolite-filled reed bed. The artificial sewage was fec into the reed bed for 10 minutes every 6 hours at the hydraulic load 314 L/$m^2$ \ulcorner day. The filtering height of the reed bed was 100 cm and the zeolite mixture was filled in the reed bed. The mixture consisted of the same volume of two types of zeolites ; 0.5~1 mm and 1~3 mm in diameter. Annual average removal efficiency was CO$D_{Cr}$ 95.1%, T-N 49.5%, $NH{_4^+}$-N 99.4% and T-9 56.4%. T-N removal efficiency decreaced remarkably from 73 to 27% with the operating time. Most of T-P was adsorbed in the uper area of the reed bed. The major portion of adsorbed phosphorus was composed of Fe-, Ca- and reductant selubele Fe-P.

제올라이트로 충진된 수직 흐름 갈대 여과상에 인공하수를 주입하면서 처리효율을 조사하였다. 여과상 표면적 $m^2$당 1일 314 L의 인공하수가 6시간마다 10분 동안 간헐적으로 주입되었다 각 항목별 연중 평균 처리효율은 CO $D_{Cr}$ , 95.1%, T-N 49.5%, N $H_4$$^{+}$-N 99.4%, T-P 56.4%이었다. T-N의 처리효율은 가동 시간이 경과함에 따라 현저하게 감소하였다. 여과상의 상층에서 많은 인이 흡착되었으며 흡착된 인 중 대부분은 Fe-p, Ca-P와 환원가용성 Fe-P이었다.

Keywords

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