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KMID : 0382420030290030016
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Korean Journal of Environmental Health Society
2003 Volume.29 No. 3 p.16 ~ p.20
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A Studies on Removal of Nutrient Material by Using Dropwort Field
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Lee Young-Shin
Kim Chang-Whe
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Abstract
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Nitrogen(N) and phosphorus(P) in surface streams mainly lead to euthrophication. It aggravates water quality and consequently increases the purification costs. As a resolution of water contamination caused by household drainage through irrigation route by 70% of the 1,300 community residents in Eum-Am Myun, Sea-San city, was implemented biological self-purification method by growing Oenanthe Javanica along the polluted water tunnel. The contaminated water was efficiently purified after passing the dropwort field; DO cone. of effluent water was increased 8.3-61.9% after through the drop wort field. HRT of experiment system was changed 0.05-1.50/day. 50% of BOD was eliminated at the range above 12 mg/l of Influent BOD cone. Also, 50% of COD was eliminated at the range above 30 mg/l of Influent COD cone. Finnally, the influent T-N loading at range below 1.5 g/m³/d reduced 50% of Influent T-N cone, and so did influent T-P loading at the range below 0.03 g/m³/dwas reduced 50% of Influent T-P cone.
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