| Title |
Estimation of Stream Discharges Using Effluents from a Wastewater Treatment Plant |
| Authors |
김강주(Kang Joo Kim),이지선(Ji Sun Lee),오창환(Chang Whan Oh),황갑수(Kab Soo Hwang),유재연(Jae Yeon Yu),김진삼(Jin Sam Kim),여성구(Seong Ku Yeo),김영규(Yeong Kyoo Kim),이광식(Kwang Sik Lee) |
| Abstract |
The goal of this study is to evaluate the possibility of using the chemical species dissolved in the WTP effluent as tracers for stream flow measurements. For this study, the effluents from Chonju WTP and the nearby streams were sampled and analyzed twice in the summer of 1999. It was revealed that the water chemistry of the effluent is distinct relative to the stream waters, especially, in concentrations of inorganic anions. The chemistry of those streams was strongly influenced by mixing with the treated water being discharged from the plant. Because of this reason. the conservative species such as chloride, sulfate, and EC were linearly correlated with high r² values. However, alkalinity and nitrate did not show such a relationship with respect to the conservative species, indicating modification of their concentrations by various chemical reactions. In this study, Streams flows were calculated by observing water chemistry of streams lower than the discharge point of Chonju WTP. The stream flows estimated from the chloride and sulfate concentrations, and EC were nearly the same at least for the immediate downstream of the discharge point. This consistency indicates the validity of the method suggested in this study. |