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 Treatme
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
본 연구의 목적은 직렬연결 2단 수직 및 수평 모래 갈대 인공습지에 생활하수를 간헐적으로 주입하였을 때 각 수질항목별 처리효율을 평가하는 것이다. 하수는 수리학적 부하량 314 L/m2․day(수직 흐름 인공습지 기준)를 하루4(10분 동안 주입 후 5시간 50분 동안 중단)회 균등하게 간헐적으로 주입하였다. 평가 결과 pH는 유입수(7.27)보다수직 흐름 인공습지 유출수(5.81)에서 감소하였다가 수평 흐름 인공습지 유출수(6.40)에서 다시 증가하였다. DO의농도는 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.
Abstract
A sewage was treated using serially combined vertical(VFCW)and horizontal flow sand-filled reed constructedwetland(HFCW) with intermittent feeding. The sand had 1∼3 ㎜ diameter. The sewage entering the sewage treatmentplant of Gyeonsang National University was fed into the reed constructed wetland bed for 10 minutes every 6 hoursat the hydraulic load of 314 L/㎡․day based on the surface ares of the VFCW. In the VFCW effluent pH valueswere lower than those of the influent, whereas they were higher than those of the influent in the HFCW. DO valueswere increased in VFCW, but they were decreased in the HFCW. The OTR was 58.72 g O2/㎡ㆍday in the VFCWand 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 butthe concentration of NO2--N in the effluent was less than 0.64 mg/L
참고문헌 (25)
- APHA, "Standard Methods for the Examination of Water and Wastewater" (1989), American Public Health Association
- Babatunde, AO, "Constructed wetlands for environmrntal pollution control: A review of developments, research and practice in Ireland", Environmental International, 34(1), pp.116~126 (2008)
- Bahlo, K, "Reinigungsleistung und Bemessung von Vertkal Durchstroemten Bodenfiltern mit Abwasserrezirkulation", 박사, pp.1997
- Brix, H, "The use of vertical flow constructed wetlands for on-site treatment of domestic wastewater: New Danish guidelines", Ecological Engineering, 25, pp.491~500 (2005)
- Development of an environmentally friendly sewage treatment model with water plant and sand for small communities (Final report), "Chung, DY", Korean Ministry of Environment, ~ (2002)
- Clark, T, "Phosphorus removal by chemical precipitation in a biological aerated filter", Water Research, 31(10), pp.2257~2563 (1997)
- Cooper, P, "A review of the design and performance of vertical-flow and hybrid reed bed treatment systems", Water Science Technology, 40(3), pp.1~9 (1999)
- Dongwha Technology, "Korea Standard Methods for the Examination of Waste and Wastewater", ~ (1999)
- Drizo, A, "Physico-Chemical screening of phosphate-removing substrates for use in constructed wetland systems", Water Research, 33(17), pp.3595~3602 (1999)
- Fehr, G, "Leistungsfaehigkeit intermittirend beschickter, bepflanzter Bodenfilter", 21 Wassertechnische Seminar, Pflanzenklaeranlagen - Besser Als Ihr Ruf?, pp.197~225 (1990), Institut fuer Wasserversorgung, Abwasserbeseitigung und Raumplanung der Technischen Hochschule Darmastadt
- ATV-Regelwerk Abwassrer-Abfall, "Gesellschaft zur Foederung der Abwassertechnik e. V.", Behandlung von Haeuslichem Abwasser in Pflanzenbeeten, ~, pp.ATV-Hinweisblatt H 262 (1989)
- Kim, HJ, "Small scale wastewater treatment in rural areas using natural systems", 박사, pp.1997
- Pflanzenklaernlagen aus Oekologischer Sicht, ATV-Fortbildungskurs E, "5, 18-20. 3. 1987 in Fulda", Kraft, H, 1987
- Lie, L, "Effect of aeration modes and influent COD", N ratios on the nitrogen removal performance of vertical flow constructed wetland, 2013, pp.57, 10~16
- Li, HB, "Performance study of vertical flow constructed wetlands for phosphorus removal with water quenched slag as a substrate", Ecological Engineering, 53, pp.39~45 (2013)
- Merlin, G, "Performance of constructed wetlands for municipal wastewater treatment in rural mountainous area", Hydrobilogia, 469(1-3), pp.87~98 (2002)
- Pedescoll, A, "Contaminant removal efficiency depending on primary treatment and operational strategy in horizontal subsurface flow treatment wetlands", Ecological Engineering, 37, pp.372~380 (2011)
- Platzer, C, "Entwicklung eines Bemessungsansatzes zur Stick-stoffelimination in Pflanzenklaeranlagen, Berichte zur Siedlungswasserwirtschaft Nr. 6", 박사, pp.1997
- Platzer, C, "Design recommendation for subsurface flow constructed wetlands for nitrification and denitrification", Water Science and Technology, 40(3), pp.257~263 (1999)
- Sasikala, S, "Comparison study of pulsing and continuous flow for improving effluent water quality and plant growth of a constructed wetland to treat domestic wastewater", Tropical Agricultural Research, 21(2), pp.147~156 (2010)
- 서정윤, "제올라이트 칼럼에 의한 인공생활하수처리", 한국환경농학회지, 21(3), pp.3~188 (2002), 한국환경농학회
- Wissing, F, "Wasserreinigung mit Pflanzen" (1995), E. U. Verlag Eugen Ulmer
- Xie, SG, "Temperature effect on aerobic denitrification and nitrification", J. of Environmental Sciences, 15(5), pp.669~673 (2003)
- Advanced treatment technology of wastewater, Process development for simultaneous removal of nitrogen and phosphorous using natural zeolite, "Yoo, SU", Institute of Construction Part of Samsung C&T Corporation, Korean Ministry of Environment, ~ (1997)