earticle

영어

The artificial sewage was treated using a vertical 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 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 CODCr 95.1%, T-N 49.5%, NH4 +-N 99.4% and T-P 56.4%. T-N removal efficiency decreased remarkably from 73 to 27% with the operating time. Most of T-P was adsorbed in the upper area of the reed bed. The major portion of adsorbed phosphorus was composed of Fe-, Ca- and reductant soluble Fe-P.

한국어

제올라이트로 충진된 수직 흐름 갈대 여과상에 인공하수를 주입하면서 처리효율을 조사하였다. 여과상 표면적 m2 당 1일 314 L의 인공하수가 6시간마다 10분 동안 간헐적으로 주입되었다. 각 항목별 연중 평균 처리효율은 CODCr 95.1%, T-N 49.5%, NH4 +-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.