Experimental and Modeling Study on Cr(VI) Migration from Slag into Soil and Groundwater

The transport and prediction of hexavalent chromium (Cr(VI)) contamination in “slag–soil–groundwater” is one with many uncertainties. Based on the column experiments, a migration model for Cr(VI) slag–soil–groundwater system was investigated. hydraulic conductivity (Kt), distribution coefficient (Kd), retardation factor (Rd), other parameters were estimated laboratory. Combining these available geological hydrogeological data study area, groundwater flow developed assessing contamination. Subsequently, to simulate predict effect three different control programs results showed that differences measured predicted head values all less than 3 m. maximum minimum between simulated 1.158 0.001 mg/L, respectively. Moreover, harmless treatment slag considerably improved quality surrounding areas. this provided reliable mathematical process analysis system.