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서지반출
간헐 주입 2단(수직 및 수평 흐름) 모래 갈대 인공습지에 의한 생활하수 처리
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  • 간헐 주입 2단(수직 및 수평 흐름) 모래 갈대 인공습지에 의한 생활하수 처리
  • Evaluation of Combined Vertical and Horizontal Flow Sand-Filled Reed Constructed Wetland with Intermittent Feeding for Sewage Treatment
저자명
서정윤
간행물명
한국습지학회지KCI
권/호정보
2014년|16권 2호(통권47호)|pp.261-268 (8 pages)
발행정보
한국습지학회|한국
파일정보
정기간행물|KOR|
PDF텍스트(0.79MB)
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국문초록

본 연구의 목적은 직렬연결 2단 수직 및 수평 모래 갈대 인공습지에 생활하수를 간헐적으로 주입하였을 때 각 수 질항목별 처리효율을 평가하는 것이다. 하수는 수리학적 부하량 314 L/m2?day(수직 흐름 인공습지 기준)를 하루 4(10분 동안 주입 후 5시간 50분 동안 중단)회 균등하게 간헐적으로 주입하였다. 평가 결과 pH는 유입수(7.27)보다 수직 흐름 인공습지 유출수(5.81)에서 감소하였다가 수평 흐름 인공습지 유출수(6.40)에서 다시 증가하였다. DO의 농도는 유입수에 비하여 유출수에서 높았으며 겨울로 갈수록 증가하였다. 수직 흐름 인공습지의 산소 전달율 (oxygen transfer rate: OTR)은 58.72 g O2/㎡ㆍday 그리고 수평 흐름 인공습지의 OTR은 7.72 g O2/㎡ㆍday이었다. 각 항목별 평균 처리효율은 SS 94.80%, BOD 90.77%, CODCr 85.87%, CODMn 87.72%, T-N 64.74%, NH4 +-N 86.44%, T-P 87.70%이었다. 유출수 중 T-N의 반 정도는 NO3 --N(7.21 ㎎/L)이었으며 NO2 --N은 평균 0.64 mg/L이었다.

영문초록

A sewage was treated using serially combined vertical(VFCW)and horizontal flow sand-filled reed constructed wetland(HFCW) with intermittent feeding. The sand had 1∼3 ㎜ diameter. The sewage entering the sewage treatment plant of Gyeonsang National University was fed into the reed constructed wetland bed for 10 minutes every 6 hours at the hydraulic load of 314 L/㎡?day based on the surface ares of the VFCW. In the VFCW effluent pH values were lower than those of the influent, whereas they were higher than those of the influent in the HFCW. DO values were increased in VFCW, but they were decreased in the HFCW. The OTR was 58.72 g O2/㎡ㆍday in the VFCW and 7.72 g O2/㎡ㆍday in the HFCW. Average removal efficiencies were SS 94.80%, BOD 90.77%, CODCr 85.87%, CODMn 87.72%, T-N 64.74%, NH4 +-N 86.44%, T-P 87.70%. Nearly, half of T-N in the effluent was NO3 --N but the concentration of NO2 --N in the effluent was less than 0.64 mg/L

목차

1. 서 론
2. 재료 및 방법
3. 결과 및 고찰
4. 결 론
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