Test-Bed 규모의 하이브리드형 인공 습지의 오염저감도 평가
Evaluation of Pollution Reduction in Hybrid Constructed Wetlands on Test-Bed scale
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초록
Test-Bed 규모의 도시하수처리장 방류수 유입을 통해 수직흐름형 습지와 수평흐름형 습지가 연결 된 하이브리드형인공 습지 설치하였다. 인근 하수처리장에서 채수한 방류수를 약 100일 간 운전하였다. 해당 인공습지를 운전하면서얻은 결과를 통하여 방류수 내 저농도의 BOD, TN과 TP 제거하는 성능을 확인하고자 하였다. 각 오염물들은 유입수에 비해 BOD는 약 20%, TN은 약 90% 그리고 TP는 완전 제거되는 것을 확인할 수 있었다. 운전 결과를 통해 인공습지를 하수방류처리장 말단부에 위치시킴에 충분한 오염 저감 효율을 확인할 수 있을 것이라고 판단한다. 이를 통한수질오염총량제를 맞추기 위한 제거율에 영향을 미칠 수 있을 것이라고 판단한다.
Abstract
The constructed wetland was built as the vertical flow type wetland and the horizontal flow type wetland. The effluent collected from a nearby sewage treatment plant was operated for about 100 days. Through the results obtained while driving the constructed wetland, we tried to confirm the performance of removing low concentrations of BOD, TN, and TP in the effluent. Compared to the influent water, it was confirmed that BOD had 20%, TN had 90%, and TP had 100% of removal. It is judged that the pollution reduction efficiency sufficient to place the artificial wetland at the end of the sewage discharge treatment plant can be confirmed through the operation results. Throughout these result, it seemed that it may affect the removal rate to meet the total amount of water pollution. Key words
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