Modelling of leachate migration under unsaturated-saturated condition | |
| Author | Istiarto |
| Call Number | AIT Thesis no. WA-89-06 |
| Subject(s) | Water, Underground--Pollution Leachate |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | A mathematical model to predict the migration of leachate from ground surface through surface soil to the groundwater table and then along with the regional groundwater flow is developed. The model couples the groundwater flow and solute transport equations in a two-dimensional, unsteady, integrated unsaturated-saturated porous media. The finite difference approximation is used to solve simultaneously the partial differential equations describing the groundwater flow and solute transport processes. The transport mechanisms considered in the model are advection, hydrodynamic dispersion, sorption, and degradation. Validity of the model is tested by comparing its results to those obtained from existing numerical and analytical solutions. A hypothetical problem of leachate migration from a surface impoundment in a vertical cross-section of an unconfined aquifer is solved to illustrate the applicability of the model. |
| Year | 1989 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Gupta, Ashim Das; |
| Examination Committee(s) | Loof, Rainer;Paudyal, Guna N.; |
| Scholarship Donor(s) | US-ASEAN; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |