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EMC and Unit Loads of Pollutants Generated from Tomato Cultivation during Rainfall

강우시 시설재배지역의 오염물질 유출 EMC 및 원단위 산정

  • Jeon, Je Chan (Department of Environmental Engineering, Kyungpook national university) ;
  • Kwon, Koo Ho (Department of Environmental Engineering, Kyungpook national university) ;
  • Lee, Sang Hyeub (Department of Environmental Engineering, Kyungpook national university) ;
  • Lee, Jea Woon (Nakdongriver Environment Research Center) ;
  • Gwon, Heun Gag (Nakdongriver Environment Research Center) ;
  • Min, Kyung Sok (Department of Environmental Engineering, Kyungpook national university)
  • 전제찬 (경북대학교 환경공학과) ;
  • 권구호 (경북대학교 환경공학과) ;
  • 이상협 (경북대학교 환경공학과) ;
  • 이재운 (국립환경과학원 낙동강 물환경연구소) ;
  • 권헌각 (국립환경과학원 낙동강 물환경연구소) ;
  • 민경석 (경북대학교 환경공학과)
  • Received : 2013.10.20
  • Accepted : 2013.11.01
  • Published : 2013.11.30

Abstract

Total maximum daily load enforced in 2004 is a program to evaluate the amount of pollutants by each land use type and manage to meet a target water quality of each waterbody. The many research to calculate runoff load of pollutants by landuse type have been studied. This study was conducted to calculate pollutants EMC, load and unit load in stormwater runoff generated from tomato growing area. Monitoring was conducted about 32 event during 4years and water quality parameters such as BOD, $COD_{Mn}$, TOC, TSS, TN, TP, $NH_3-N$, $NO_3-N$, $PO_4-P$ were analyzed at the laboratory. The average EMC were measured as follows: 9.6 BOD mg/L, 17.2 $COD_{Mn}$ mg/L, 5.5 TOC mg/L, 319.4 TSS mg/L, 4.4 T-N mg/L, 2.6 T-P mg/L, 0.5 $NH_3-N$ mg/L, 0.04 $NO_2-N$ mg/L, 2.6 $NO_3-N$ mg/L, 0.8 $PO_4-P$ mg/L. TN and TP is dichargeed as $NO_3-N$ and particle phosphorus type, respectively.

2004년에 도입된 오염총량관리제는 각종 토지이용형태별로 오염물질의 배출량을 산정하여 하천의 목표수질을 정하고 관리하는 것이다. 이에 따라 토지이용형태 별로 오염물질의 유출부하량을 산정하기 위한 많은 연구가 진행되어 왔다. 본 연구 또한 토마토 시설재배지역을 대상으로 강우유출수 내 오염물질의 EMC, 부하량 및 원단위 등을 산정하기 위해 실시되었다. 산정된 평균 EMC 값은 BOD 9.6mg/L, $COD_{Mn}$ 17.2mg/L, TOC 5.5mg/L, TSS 319.4mg/L, T-N 4.4mg/L, T-P 2.6mg/L, $NH_3-N$ 0.5mg/L, $NO_3-N$ 2.6mg/L, $PO_4-P$ 0.8mg/L로 조사 되었다. 이 중 영양염류인 TN은 대부분 $NO_3-N$의 형태, TP는 입자성인의 형태로 유출되는 것으로 파악되었다. 오염물질의 원단위는 BOD는 $21.8{\sim}56.8g/m^2/yr$의 범위로 나타났으며, $COD_{Mn}$$38.9{\sim}101.7g/m^2/yr$로 나타났다. 또한, TSS의 경우에는 $179.5{\sim}1878g/m^2/yr$의 범위로 분석되었고, TN과 TP는 $10.7{\sim}26.3g/m^2/yr$$5.8{\sim}15.2g/m^2/yr$로 각각 분석되었다. 한편, $NH_3-N$, $NO_3-N$$PO_4-P$$1.3{\sim}3.4g/m^2/yr$, $5.9{\sim}15.4g/m^2/yr$$1.8{\sim}4.8g/m^2/yr$의 범위로 각각 분석되어졌다.

Keywords

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