본 연구의 목적은 직렬연결 수직 및 수평 흐름 갈대 제올라이트 인공습지에 생활하수를 간헐적으로 주입하였을 때 처리 효율을 조사하는 것이다. 각 항목별 유입수에 대한 평균 처리효율은 수직 흐름 인공습지 유출수에서 BOD 92.42%, CODCr 79.02%, CODMn 80.62%, SS 98.33%, T-N 37.06%, NH4 +-N 99.45%, T-P 57.96%이었으며 수평 흐름 인공습지 유출수에서 BOD 95.56%, CODCr 91.02%, CODMn 87.78%, SS 99.22%, T-N 45.87%, NH4 +-N 99.88%, T-P 71.17%이었다. 최종 유출수 중 T-N은 대부분이 NO3 --N이었으며 NO2 --N은 평균 0.04mg/L 이하이었다. 특히, 갈대 제올라이트 인공습지는 SS와 NH4 +-N의 처리에 탁월하였다.
A sewage was treated using serially combined vertical and 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 reed bed depth 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. pH value decreased in vertical bed, while it increased in horizontal bed. But DO concentration in the effluent of both beds was higher than that in the influent. Average removal efficiencies of the entire treatment system were 99.22% SS, 95.56% BOD, 91.02% CODCr, 87.78% CODMn, 45.87% T-N, 99.88% NH4 +-N and 71.17% T-P. Most of T-N in the effluent was NO3 --N. However, the concentration of NO2 --N in the effluent was lower than 0.04 mg/L. All removal efficiencies did not show a remarkable seasonal change.
1. 서 론 2. 재료 및 방법 3. 결과 및 고찰 4. 결 론 References
