Kinetic modeling and probe-based experiments show calcium peroxide reduces toxicity in oil sands process water, suggesting effective remediation strategies.
Key Points
This research investigates the photochemical mechanisms of reactive species formation in oil sands process water using calcium peroxide.
Combined kinetic modeling with probe-based experiments to quantify reactive species concentrations.
Evaluation of varying calcium peroxide doses to analyze steady-state conditions.
Measurement of apparent quantum yields for different reactive species under solar activation.
Achieved 68.9% removal of classical naphthenic acids primarily through hydroxyl radical mediation.
Significant reduction in hydrocarbons by 65.8% and acute toxicity by 20%.
Improved biodegradability with BOD5/COD ratio increasing from < 0.03 to 0.14.