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KMID : 0380020030180060506
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 6 p.506 ~ p.510
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Horizontal Flow Zeolite-Filled Reed Bed for Treatment of Artificial Sewage with Intermittent Feeding
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Seo Jeoung-Yoon
Choi Min-Su
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Abstract
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The artificial sewage was treated using a horizontal flow zeolite-filled reed bed. The artificial sewage was fed into the reed bed for 10 minutes every 6 hours at the hydraulic load of 314 L/㎡day. The filtering height of the reed bed was 100 cm and the zeolite mixture was filled in the reed bed. The mixttjre consisted of the same volume of two types of zeolite: 0.5∼l mm and 1∼3 mm in diameter. Annual average removal efficiency was CODcr 95.8%, T-N 56.5％, NH4/＋/-N 99.4％ and T-P 61.3%. T-N removal efficiency decreased remarkably from 84 to 32％ with the operating time.
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KEYWORD
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Horizontal flow, zeolite reed bed, artificial sewage, treatment, intermittent feeding
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