Biodegradation of N-Heterocyclic Aromatic Hydrocarbons in Contaminated Soil
Public Deposited- Last Modified
- March 22, 2019
- Creator
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Wang, Zhe
- Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
- Abstract
- While progress has been made understanding the biodegradation of polycyclic aromatic hydrocarbons (PAHs) in contaminated soil, the fate of co-existing contaminants, such as nitrogen-containing heterocyclic aromatic hydrocarbons (azaarenes) is rarely reported. Compared to their PAH analogues, azaarenes have higher toxicity and mobility in the environment, which might pose significant risk to public health. In this research, the fate of three azaarenes (carbazole, acridine, and phenanthridine) in contaminated soil was investigated. Carbazole was degraded in both untreated soil and soil treated in a lab-scale aerobic bioreactor. For phenanthridine, co-metabolism with phenanthrene was a major mechanism for its removal from untreated soil. Both acridine and phenanthridine were not significantly removed in untreated soil when these compounds were examined individually, but were removed in the bioreactor. Overall, this study of the fate and biodegradation of three azaarenes in contaminated soil provided insights and potential for future research on bioremediation of azaarenes-contaminated sites.
- Date of publication
- August 2017
- Keyword
- DOI
- Resource type
- Rights statement
- In Copyright
- Advisor
- Stewart, Jill
- Singleton, David
- Aitken, Michael
- Degree
- Master of Science
- Degree granting institution
- University of North Carolina at Chapel Hill
- Graduation year
- 2017
- Language
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This work has no parents.
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