A rapid prediction tool for two-dimensional plume migration of a degradable contaminant

• Main Authors: Zhong-Yi Liao, 廖中翊
• Other Authors: Jui-Sheng Chen
• Format: Others
• Language: en_US
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/pq75xv

碩士 === 國立中央大學 === 應用地質研究所 === 107 === Analytical solutions to a set of simultaneous multispecies advective-dispersive transport equations sequentially coupled with first-order decay reactions have been widely used to describe the movement of decaying or degradable contaminants such as chlorinated solvents, nitrogen or pesticides in the subsurface environment. This study presents exact analytical solutions for two-dimensional multispecies transport in a semi-finite domain which allows each species to have distinct retardation factors. It is hoped that this method will become a rapid prediction tool. The equations are solved for both the first- and third-type inlet boundary conditions. The robustness of the developed analytical model is verified with an example of chlorinated solvents. It is applied to investigate the effects of the inlet and exit boundary conditions on the multispecies plume migration.