Fig. 7
Profiles of Br, Ca, Ca on solid surface, Na, Na on solid surface in the sandstone aquifer during release (left column) and after release (right column) under the three release cases. The High, Medium, and Low release rates are 1.11 × 10−7 m3/s for 15 days, 5.55 × 10−8 m3/s for 30 days, and 1.11 × 10−8 m3/s for 150 days, respectively. The “during release” curves are on day 10 after the release starts. The “after release” curves are on day 5 after release stops