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KMID : 0380020030180020140
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 2 p.140 ~ p.144
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Vertical Flow Zeolite-Filled Reed Bed for Treatment of Artificlal Sewage with Intermittent Feeding
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Seo Jeoung-Yoon
Kim Tae-Hyeung
Choi Min-Su
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Abstract
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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/ \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 95.1%, T-N 49.5%, -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.
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KEYWORD
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Vertical flow, zeolite reed bed, artificial sewage, treatment, intermittent feeding
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