Phytoremediation of contaminated soils: the effects of soil salinity on the phytoremediation rate of polyaromatic hydrocarbons by alfalfa (Medicago sativa L.)
Bientjes, Timothy (author) Marlatt, Vicki (thesis advisor) British Columbia Institute of Technology School of Construction and the Environment (Degree granting institution) Simon Fraser University Faculty of Environment (Degree granting institution)
Dissertation/thesis
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British Columbia Institute of Technology
2019-04-16
53 pages
Phytoremediation poses an ecologically friendly and cost-effective alternative to other remediation methods such as chemical or thermal treatment. However, in contaminated sites such as retired oil wells and brine spills, it is common to have a co-contamination of salt and polyaromatic hydrocarbons (PAHs). The co-contamination of salt and PAHs may decrease the rate and effectiveness of bioremediation. Here we investigated the effect soil salinity has on the rate of phytoremediation, plant survivability and biomass. A 90-day greenhouse study was performed, growing alfalfa (Medicago sativa L.) in soils treated with varying salt (NaCl) concentrations in the presence of pyrene and benzo[a]pyrene. No significant differences were observed in the presence or absence of PAHs. Salt treatments has significant affects on plant biomass, nodulation, and successful germination.
Bioremediation Polyaromatic hydrocarbons Alfalfa Salt Phytoremediation
Phytoremediation Bioremediation Alfalfa Salt
School of Construction and the Environment
electronic
Master of Science
