Wang, Qing (2014) Influence of natural organic matter and mineral colloids on arsenic (As) and uranium (U) transport in geological media. Masters thesis, Memorial University of Newfoundland.
- Accepted Version
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Arsenic (As) and uranium (U) are two common groundwater contaminants that threaten human health. To assess the scope of As and U contamination in groundwater, it is important to characterize and quantify As and U migration in porous geo-media. This thesis research examined the influence of natural organic matter and mineral colloids on As and U transport. As and U transport was investigated by injecting As-spiked or U-spiked solution/suspension into water-saturated columns packed with natural sediments and quartz sand, and analyzing As or U concentration in column effluent. Column experiment results showed that natural organic matter substantially increased As and U transport, while mineral colloids had only minor effects on As and U transport. When natural organic matter and mineral colloids co-existed, As transport was lower, but U transport was higher compared to that in systems with HA but no illite.
|Item Type:||Thesis (Masters)|
|Additional Information:||Includes bibliographical references.|
|Department(s):||Science, Faculty of > Environmental Science|
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