안성천 지역 강변여과수와 복류수의 수질 특성 비교 = Comparison of Water Quality Characteristics Between Riverbank Filtration and Riverbed Filtration in the Anseongcheon Area

다국어 초록 (Multilingual Abstract)

This study evaluated the water quality characteristics of two widely used indirect water intake methods in Korea—riverbed filtration and riverbank filtration—which have garnered increasing attention in response to recent climateanomalies. Specifically, the study compared water quality data from the Anseongcheon area, where riverbed and riverbankfiltration facilities are installed at the same location. Monthly measurements of pH, biochemical oxygen demand (BOD),suspended solids (SS), dissolved oxygen (DO), total coliforms (TC), and fecal coliforms (FC) were conducted from 2016to 2018. Additionally, five rounds of sampling and analysis of the horizontal wells in the riverbank filtration system wereconducted between 2018 and 2019. The results showed that both riverbed and riverbank filtration methods generallyproduced higher water quality compared to raw river water. While riverbed filtration was particularly effective at removingphysical pollutants such as SS and turbidity, riverbank filtration demonstrated superior overall performance by significantlyreducing all major water quality indicators. Notably, riverbank filtration exhibited excellent biological treatment efficiencyin lowering concentrations of BOD, TC, and FC. This study provides empirical evidence demonstrating the improvementof water quality achieved through indirect water intake methods, offering valuable insights for the selection andmanagement of sustainable water supply strategies in the future.