해안방류된 하수처리수가 해양환경에 미치는 영향

Most sewage treatment plants located offshore are discharged to the shore either directly or through rivers. Therefore, the water quality of the treated water discharged from the sewage treatment plant affects the water quality of the river water discharged to the river and the ocean. In this study,...

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Published in대한토목학회논문집 Vol. 40; no. 1; pp. 127 - 133
Main Authors 신범식, 김규한, Shin, Bumshick, Kim, Kyu-Han
Format Journal Article
LanguageKorean
Published 대한토목학회 01.02.2020
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ISSN1015-6348
2287-934X
2799-9629
DOI10.12652/Ksce.2020.40.1.0127

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Abstract Most sewage treatment plants located offshore are discharged to the shore either directly or through rivers. Therefore, the water quality of the treated water discharged from the sewage treatment plant affects the water quality of the river water discharged to the river and the ocean. In this study, field surveys and numerical simulations were conducted to investigate the effect of treated water from the sewage treatment plant adjacent to the coastal environment. As a result of analyzing the water quality and sediment quality with the samples collected from the river and the estuary where the treated water was discharged to understand the impact on the coast, the treated water discharged from the sewage treatment plant was discharged to the river without exceeding the design criteria. However, the water quality discharged to the shore through estuaries was more contaminated than treated water. The cause of water quality deterioration of coastal effluent is due to the sedimentation of estuary temporarily by longshore sediment sransport which appeared around the estuary, the occurrence of estuary obstruction, and the increase of stagnant time in the estuary. As it was released and discharged, it was analyzed to affect the water quality, water quality and marine life around the estuary. Therefore, in the case of the east coast where the longshore sediment transport is strong, when planning the sewage treatment facility discharged to the ocean, it is necessary to closely examine the water quality change of the river water in the treated water such as the river mouth occlusion by the longshore sediment transport. 해안에 위치한 대부분의 하수 처리장의 처리수는 직접 또는 하천을 통해 해안으로 배출된다. 따라서, 하수 처리장에서 배출되는 처리수의 수질은 하천 및 해안으로 방류되는 수질에 영향을 미친다. 본 연구에서는 연안에 인접한 하수처리장으로부터 배출되는 처리수가 연안 환경에 미치는 영향을 파악하기 위해 현장조사와 수치 시뮬레이션을 수행하였다. 해안에 미치는 영향을 파악하기 위해 처리수가 방류된 하천 및 하구 주변에서 채수된 시료로 수질과 저질을 분석한 결과, 하수처리장에서 배출된 처리수는 설계기준을 초과하지 않은 상태로 하천으로 방류되고 있으나, 하구를 통해 해안으로 방류되는 수질은 처리수보다 오염된 상태였다. 해안방류수의 수질악화에 대한 원인은 하구 주변에서 나타난 연안표사에 의해 하구가 일시적으로 퇴적되고, 하구폐색 현상이 발생하여, 하구에서의 정체시간이 증가함에 따라 처리수가 유입된 하천수가 하계에 부영양화되어 방류됨에 따라, 하구 주변에서 저질, 수질 및 해양 생물에 영향을 미치는 것으로 분석되었다. 따라서, 연안표사가 강한 동해안의 경우, 해양으로 방류되는 하수처리시설을 계획할 경우, 연안표사에 의한 하구폐색과 같은 처리수의 수질에 미치는 영향에 대한 면밀한 검토가 반드시 필요할 것으로 판단된다.
AbstractList 해안에 위치한 대부분의 하수 처리장의 처리수는 직접 또는 하천을 통해 해안으로 배출된다. 따라서, 하수 처리장에서 배출되는 처리수의 수질은 하천 및 해안으로 방류되는 수질에 영향을 미친다. 본 연구에서는 연안에 인접한 하수처리장으로부터 배출되는 처리수가 연안 환경에 미치는영향을 파악하기 위해 현장조사와 수치 시뮬레이션을 수행하였다. 해안에 미치는 영향을 파악하기 위해 처리수가 방류된 하천 및 하구 주변에서 채수된 시료로 수질과 저질을 분석한 결과, 하수처리장에서 배출된 처리수는 설계기준을 초과하지 않은 상태로 하천으로 방류되고 있으나, 하구를 통해 해안으로 방류되는 수질은 처리수보다 오염된 상태였다. 해안방류수의 수질악화에 대한 원인은 하구 주변에서 나타난 연안표사에 의해 하구가 일시적으로 퇴적되고, 하구폐색 현상이 발생하여, 하구에서의 정체시간이 증가함에 따라 처리수가 유입된 하천수가 하계에 부영양화되어 방류됨에 따라, 하구 주변에서 저질, 수질 및 해양 생물에 영향을 미치는 것으로 분석되었다. 따라서, 연안표사가 강한 동해안의 경우, 해양으로 방류되는 하수처리시설을 계획할 경우, 연안표사에 의한 하구폐색과 같은 처리수의 수질에 미치는 영향에 대한 면밀한 검토가 반드시 필요할 것으로 판단된다. Most sewage treatment plants located offshore are discharged to the shore either directly or through rivers. Therefore, the water quality of the treated water discharged from the sewage treatment plant affects the water quality of the river water discharged to the river and the ocean. In this study, field surveys and numerical simulations were conducted to investigate the effect of treated water from the sewage treatment plant adjacent to the coastal environment. As a result of analyzing the water quality and sediment quality with the samples collected from the river and the estuary where the treated water was discharged to understand the impact on the coast, the treated water discharged from the sewage treatment plant was discharged to the river without exceeding the design criteria. However, the water quality discharged to the shore through estuaries was more contaminated than treated water. The cause of water qualitydeterioration of coastal effluent is due to the sedimentation of estuary temporarily by longshore sediment sransport which appeared around the estuary, the occurrence of estuary obstruction, and the increase of stagnant time in the estuary. As it was released and discharged, it was analyzed to affect the water quality, water quality and marine life around the estuary. Therefore, in the case of theeast coast where the longshore sediment transport is strong, when planning the sewage treatment facility discharged to the ocean, it isnecessary to closely examine the water quality change of the river water in the treated water such as the river mouth occlusion by the longshore sediment transport. KCI Citation Count: 1
Most sewage treatment plants located offshore are discharged to the shore either directly or through rivers. Therefore, the water quality of the treated water discharged from the sewage treatment plant affects the water quality of the river water discharged to the river and the ocean. In this study, field surveys and numerical simulations were conducted to investigate the effect of treated water from the sewage treatment plant adjacent to the coastal environment. As a result of analyzing the water quality and sediment quality with the samples collected from the river and the estuary where the treated water was discharged to understand the impact on the coast, the treated water discharged from the sewage treatment plant was discharged to the river without exceeding the design criteria. However, the water quality discharged to the shore through estuaries was more contaminated than treated water. The cause of water quality deterioration of coastal effluent is due to the sedimentation of estuary temporarily by longshore sediment sransport which appeared around the estuary, the occurrence of estuary obstruction, and the increase of stagnant time in the estuary. As it was released and discharged, it was analyzed to affect the water quality, water quality and marine life around the estuary. Therefore, in the case of the east coast where the longshore sediment transport is strong, when planning the sewage treatment facility discharged to the ocean, it is necessary to closely examine the water quality change of the river water in the treated water such as the river mouth occlusion by the longshore sediment transport. 해안에 위치한 대부분의 하수 처리장의 처리수는 직접 또는 하천을 통해 해안으로 배출된다. 따라서, 하수 처리장에서 배출되는 처리수의 수질은 하천 및 해안으로 방류되는 수질에 영향을 미친다. 본 연구에서는 연안에 인접한 하수처리장으로부터 배출되는 처리수가 연안 환경에 미치는 영향을 파악하기 위해 현장조사와 수치 시뮬레이션을 수행하였다. 해안에 미치는 영향을 파악하기 위해 처리수가 방류된 하천 및 하구 주변에서 채수된 시료로 수질과 저질을 분석한 결과, 하수처리장에서 배출된 처리수는 설계기준을 초과하지 않은 상태로 하천으로 방류되고 있으나, 하구를 통해 해안으로 방류되는 수질은 처리수보다 오염된 상태였다. 해안방류수의 수질악화에 대한 원인은 하구 주변에서 나타난 연안표사에 의해 하구가 일시적으로 퇴적되고, 하구폐색 현상이 발생하여, 하구에서의 정체시간이 증가함에 따라 처리수가 유입된 하천수가 하계에 부영양화되어 방류됨에 따라, 하구 주변에서 저질, 수질 및 해양 생물에 영향을 미치는 것으로 분석되었다. 따라서, 연안표사가 강한 동해안의 경우, 해양으로 방류되는 하수처리시설을 계획할 경우, 연안표사에 의한 하구폐색과 같은 처리수의 수질에 미치는 영향에 대한 면밀한 검토가 반드시 필요할 것으로 판단된다.
Author 신범식
김규한
Kim, Kyu-Han
Shin, Bumshick
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Snippet Most sewage treatment plants located offshore are discharged to the shore either directly or through rivers. Therefore, the water quality of the treated water...
해안에 위치한 대부분의 하수 처리장의 처리수는 직접 또는 하천을 통해 해안으로 배출된다. 따라서, 하수 처리장에서 배출되는 처리수의 수질은 하천 및 해안으로...
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Title 해안방류된 하수처리수가 해양환경에 미치는 영향
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