earticle

영어

A sewage was treated using a horizontal flow zeolite-filled reed bed. The sewage from the student dormitory of Changwon National University 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 ㎝ and the zeolite mixture was filled in the reed bed. The mixture consisted of the same volume of two types of zeolite ; 0.5～1 ㎜ and 1～3 ㎜ in diameter. Annual average removal efficiency was SS
88.5%, CODCr 86.1%, CODMn 81.0%, T-N 48.6%, NH4 +-N 97.1% and T-P 42.8%. T-N of effluent was mostly NO3 --N and the concentration of NO2 --N in effluent was lower than 0.1 mg/L. All removal efficiencies did not show a remarkable seasonal change.

한국어

제올라이트로 충진된 수평 흐름 갈대 여과상에 실제하수를 간헐적으로 주입하면서 처리효율을 조사하였다. 여과상 표면적 m2당 1일 314 L의 하수가 6시간마다 10분 동안 간헐적으로 주입되었다. 처리수의 pH는 원수보다 감소하였으며, 용존산소 농도는 원수보다 증가하였다. 수평 흐름여과상에서 각 항목별 연중 평균 처리효율은 SS 88.5%, CODCr 86.1%, CODMn 81.0%, BOD 93.9%, T-N 48.6%, NH4 +-N, 97.1%, T-P 42.8%이었다. 수평 흐름 여과상에서 처리수 중 T-N의 대부분은 NO3 --N이었으며 NO2 --N의 농도는 0.10 ㎎/L 이하이었다. 처리효율의 계절적 차이는 없었다.