Characterizing riverbank-filtered water and river water qualities at a site in the lower Nakdong River basin, Republic of Korea

Jeong Hwan Lee, Se Yeong Hamm, Jae Yeol Cheong, Hyoung Soo Kim, Eun Joung Ko, Kwang Sik Lee, Sang Il Lee

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The riverbank filtration technique was initiated in the Republic of Korea in the early 2000s as an additional source of drinking water in preference of usual surface water. In this study, water level, chemical composition, stable isotopes, time series, and factor analyses were used to characterize riverbank-filtered water and river water qualities at a riverbank filtration site in the Daesan-Myeon area (the first riverbank filtration site in the Republic of Korea) adjacent to the Nakdong River. For this study, the riverbank-filtered water and the river water were analyzed in both the field and the laboratory. The inorganic chemical components in the riverbank-filtered water and the river water differed significantly. Based on time series and factor analyses, the nitrate and turbidity concentrations were lower in the riverbank-filtered water than in the river water. The susceptibility to contamination of the riverbank-filtered water was lower than that of the river water. However, the groundwater level rapidly responded to the river level, and this finding was consistent with the irregular variation of the river level due to precipitation.

Original languageEnglish
Pages (from-to)209-220
Number of pages12
JournalJournal of Hydrology
Volume376
Issue number1-2
DOIs
StatePublished - 30 Sep 2009

Keywords

  • Factor analysis
  • Nakdong River
  • Republic of Korea
  • Riverbank-filtered water
  • Time series analysis
  • Water quality

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