http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유량-유달부하량 관계식을 이용한 용전천 및 단장천의 수질특성 평가
최시영 ( Siyoung Choi ),이남주 ( Namjoo Lee ),임수빈 ( Soobin Yim ) 한국수처리학회 2021 한국수처리학회지 Vol.29 No.6
This study was conducted to identify the runoff characteristics of Yongjeon and Danjang streams, tributaries of Nakdong river basin, through analyzing the flow rate-delivery pollution loading curves and the correlation of water quality factors. The flow rate-delivery pollutant concentration curve analysis exhibited that the water concentration of pollutants increased as the flow rate increased, but it was difficult to derive a correlation formula that could accurately predict changes in water concentration. In the flow rate-delivery pollution loading equation analysis for Yongjeon stream, the flow coefficient of TOC and T-N items were found to have 1.396 and 1.304, respectively, and the flow coefficient of T-P showed a high correlation of 1.606 and the determination coefficient (R<sup>2</sup>) of the relational expression was mostly 0.93 or higher. In the case of Danjang stream, TOC, T-N, and T-P items showed flow coefficient values of 1.347, 1.232, and 1.301, respectively, and the determination coefficient (R<sup>2</sup>) of the relational expression was higher than 0.95. These results suggest that Yongjeon and Danjang streams are watersheds with runoff characteristics that increase the organic and nutrient loadings as the flow rate increases. In Yongjeon stream, the flow rate (Q) correlated turbidity with high positive (+) and relatively high positive (+) correlation with TOC, T-N and NO<sub>3</sub>-N items (p<0.01). For Danjang stream, the flow rate (Q) revealed a relatively high positive (+) correlation with turbidity, TOC and T-P items (p<0.01), and negative (-) correlation with EC (p<0.01).