Department of Civil and Environmental Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea.
Department of Construction Safety and Disaster Prevention, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon, 300-716, Republic of Korea.
Chemosphere. 2022 Jan;287(Pt 3):132350. doi: 10.1016/j.chemosphere.2021.132350. Epub 2021 Sep 25.
A hybridization of managed aquifer recharge (MAR) with pre-oxidation processes was conducted in this study to investigate changes in dissolved organic matter characteristics and the attenuation of selected trace organic contaminants (TrOCs). Potassium permanganate, chlorine, and ozone treatments were used for pre-oxidation, which effectively attenuated some TrOCs, particularly the combination of MAR with ozone achieved 84-99% attenuation. The pre-oxidation step using potassium permanganate showed high removal of carbamazepine (96%). Moreover, MAR was also combined with nanofiltration (NF) as a multi-barrier concept for the removal of persistent TrOCs after MAR. A short-chain polyfluoroalkyl substance (PFAS) was effectively removed after combining MAR columns with NF membranes. Thus, pre-oxidation coupled with MAR followed by NF could potentially enhance the removal of selected TrOCs.
本研究采用了含水层人工补给（MAR）与预氧化工艺的混合工艺，研究了溶解有机物特性的变化和选定痕量有机污染物（TrOCs）的衰减情况。本研究采用高锰酸钾、氯和臭氧处理进行预氧化，有效衰减了一些 TrOCs，特别是 MAR 与臭氧的组合达到了 84-99%的衰减。高锰酸钾预处理步骤对卡马西平（carbamazepine）的去除率高达 96%。此外，MAR 还与纳滤（NF）相结合，作为 MAR 之后去除持久性 TrOCs 的多屏障概念。将 MAR 柱与 NF 膜结合后，可有效去除短链全氟烷基物质（PFAS）。因此，预氧化与 MAR 结合，然后再进行 NF，可能会增强对选定 TrOCs 的去除效果。
