고속도로 노면 강우유출 오염부하 원단위 산정 (Analysis of Unit Pollution Load on Highway runoff)

서지정보

· 발행기관 : 대한상하수도학회
· 수록지 정보 : 상하수도학회지 / 26권 / 1호 / 55 ~ 68페이지
· 저자명 : 강희만, 이두진, 배우근

초록

Impervious surface increase due to urbanization, one of the leading causes of pavement increased the runoff coefficient, peak flow,and reducing the infiltration flow and thereby causing flooding and river erosion is occurring in aquatic ecosystems are known to impair.
This study aimed to classify use type of detailed land into the road, reststop, tollgates and etc. focused on major domestic highways, to understand the characteristics of rainfall runoff pollutants and to calculate applicable unit pollution load.
Because of high runoff coefficient and short travel time to drainage. first flush occurred clearly. Average EMCs of runoff in the highway was investigated as TSS 108.47 ㎎ / L, COD 28.16 ㎎ / L, BOD 13.61 ㎎ / L, TN 6.38 ㎎ / L, TP 0.03 ㎎ / L, Cu 118.17 ㎍ / L, Pb 345.3 ㎍ / L, Zn 349.47 ㎍ / L.
Unit pollution loads calculated by detailed land use area of highways based on average annual rainfall, EMCs, applicable basin areas and etc. were 46.6 kg/km2/day of BOD, 1.4 kg/km2/day of TP, 8.81 kg / km2/day of TN and these were BOD 50.8%, TP 66.7%,TN 64.4%in comparison of the unit pollution loads which applies fallow land standards of the TMDL(Total Maximum Daily Load). It was considered that discharged loads can be excessively calculated in case highway non-point management plans based on unit pollution load of the current land standard.

영어초록

Impervious surface increase due to urbanization, one of the leading causes of pavement increased the runoff coefficient, peak flow,and reducing the infiltration flow and thereby causing flooding and river erosion is occurring in aquatic ecosystems are known to impair.
This study aimed to classify use type of detailed land into the road, reststop, tollgates and etc. focused on major domestic highways, to understand the characteristics of rainfall runoff pollutants and to calculate applicable unit pollution load.
Because of high runoff coefficient and short travel time to drainage. first flush occurred clearly. Average EMCs of runoff in the highway was investigated as TSS 108.47 ㎎ / L, COD 28.16 ㎎ / L, BOD 13.61 ㎎ / L, TN 6.38 ㎎ / L, TP 0.03 ㎎ / L, Cu 118.17 ㎍ / L, Pb 345.3 ㎍ / L, Zn 349.47 ㎍ / L.
Unit pollution loads calculated by detailed land use area of highways based on average annual rainfall, EMCs, applicable basin areas and etc. were 46.6 kg/km2/day of BOD, 1.4 kg/km2/day of TP, 8.81 kg / km2/day of TN and these were BOD 50.8%, TP 66.7%,TN 64.4%in comparison of the unit pollution loads which applies fallow land standards of the TMDL(Total Maximum Daily Load). It was considered that discharged loads can be excessively calculated in case highway non-point management plans based on unit pollution load of the current land standard.

참고자료

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