H21B-1367
Drinking Water Quality Criterion - Based site Selection of Aquifer Storage and Recovery Scheme in Chou-Shui River Alluvial Fan
Tuesday, 15 December 2015
Poster Hall (Moscone South)
Huai-EN Huang, Institute of Geophysics National Central University, Jhongli, Taiwan, Ching-ping Liang, National Formosa University, Hu-Wei, Taiwan, Cheng-Shin Jang, Kainan University, Taoyuan, Taiwan and Jui-Sheng Chen, NCU National Central University of Taiwan, Jhongli, Taiwan
Abstract:
Land subsidence due to groundwater exploitation is an urgent environmental problem in Choushui river alluvial fan in Taiwan. Aquifer storage and recovery (ASR), where excess surface water is injected into subsurface aquifers for later recovery, is one promising strategy for managing surplus water and may overcome water shortages. The performance of an ASR scheme is generally evaluated in terms of recovery efficiency, which is defined as percentage of water injected in to a system in an ASR site that fulfills the targeted water quality criterion. Site selection of an ASR scheme typically faces great challenges, due to the spatial variability of groundwater quality and hydrogeological condition. This study proposes a novel method for the ASR site selection based on drinking quality criterion. Simplified groundwater flow and contaminant transport model spatial distributions of the recovery efficiency with the help of the groundwater quality, hydrological condition, ASR operation. The results of this study may provide government administrator for establishing reliable ASR scheme.
