Since the early 1980's, leachate originating form the Alice and Fraser municipal landfill has been discharging in a natural marshland system located some 300 meters downgradient form the waste disposal site. However, monitoring of the water quality within the marshland indicates that the contaminant level has not yet surpassed background concentration downstream from the main impact area. A mathematical model was developed in an attempt to predict the mobility of several contaminant species within the marshland environment. Parameters needed for the predictive model were gathered based on the physical configuration of the landfill and marshland associated with laboratory derived data on the attenuation capacity of the marshland soil matrix. The behavior, transport and ultimate fate of contaminants in organic soil is greatly affected by their participation in sorption reactions. The adsorption potential of lead, zinc, calcium, sodium and pentachlorophenol (PCP) by marshland soil was evaluated in laboratory through both, batch and column experiments. A multidimensional finite-difference model based on the Advection-Dispersion Equation was used to predict the migration of the above mentioned contaminants. (Abstract shortened by UMI.)
| Identifer | oai:union.ndltd.org:uottawa.ca/oai:ruor.uottawa.ca:10393/6764 |
| Date | January 1994 |
| Creators | La Forge, François. |
| Contributors | Fernandes, Leta, |
| Publisher | University of Ottawa (Canada) |
| Source Sets | Université d’Ottawa |
| Detected Language | English |
| Type | Thesis |
| Format | 304 p. |
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