Related Experiment Video
Updated: Jun 3, 2025

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
Published on: October 21, 2016
A study on the effects of dispersion coefficient on groundwater pollutant transport simulation
Zongjun Gao1, Qiang Li1, Jianguo Feng2
1College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong, China.
Abstract:
A comprehensive scientific analysis of temporal and spatial fluctuations of pollutants during the migration of groundwater is essential for precisely predicting their dispersion patterns and promoting rational regional development planning. In this research paper, a field radial dispersion test was conducted in decentralized drinking water sources downstream of the Fu Tuan River basin in Rizhao City, Shandong Province, China (FRSC). Chloride ion (Cl-) solution was utilized as a tracer for the experiment. The longitudinal dispersion coefficient ( ) was determined by standard curve matching and using straight-line graphical methods. Additionally, the impact of on pollutant transport was investigated by creating the MT3DMS solute transport model with the help of GMS 10.4 software. The results indicate that the of the submerged aquifer varies depending on the distance from the source well in the main runoff direction. At distances of 10 and 15 m, the values of were observed to be 0.56 m and 0.88 m, respectively. Moreover, when these observed values of are used as simulation parameters in solute transport modeling on the same space-time scale, the hydrodynamic dispersion effect exhibited by the well is found to be weaker than the actual hydrodynamic dispersion effect.
More Related Videos
08:09Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity
Published on: August 19, 2018
09:35Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization
Published on: December 25, 2017
Related Concept Videos
Typical Model Studies
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an...
Diffusion on Chromatography Columns
Longitudinal diffusion occurs when the solute molecules in the mobile phase diffuse from the more concentrated center of the chromatographic band to the more dilute regions on either side, both towards and against the flow direction. This...
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
Design Example: Creating a Hydraulic Model of a Dam Spillway
Factors Affecting Solubility