- Title
- Anaerobic microbial degradation of polycyclic aromatic hydrocarbons: a comprehensive review
- Creator
- Dhar, Kartik; Subashchandrabose, Suresh R.; Venkateswarlu, Kadiyala; Krishnan, Kannan; Megharaj, Mallavarapu
- Relation
- Reviews of Environmental Contamination and Toxicology Volume 251 p. 25-108
- Relation
- Reviews of Environmental Contamination and Toxicology
- Publisher Link
- http://dx.doi.org/10.1007/398_2019_29
- Publisher
- Springer
- Resource Type
- book chapter
- Date
- 2020
- Description
- Polycyclic aromatic hydrocarbons (PAHs) are a class of hazardous organic contaminants that are widely distributed in nature, and many of them are potentially toxic to humans and other living organisms. Biodegradation is the major route of detoxification and removal of PAHs from the environment. Aerobic biodegradation of PAHs has been the subject of extensive research; however, reports on anaerobic biodegradation of PAHs are so far limited. Microbial degradation of PAHs under anaerobic conditions is difficult because of the slow growth rate of anaerobes and low energy yield in the metabolic processes. Despite the limitations, some anaerobic bacteria degrade PAHs under nitrate-reducing, sulfate-reducing, iron-reducing, and methanogenic conditions. Anaerobic biodegradation, though relatively slow, is a significant process of natural attenuation of PAHs from the impacted anoxic environments such as sediments, subsurface soils, and aquifers. This review is intended to provide comprehensive details on microbial degradation of PAHs under various reducing conditions, to describe the degradation mechanisms, and to identify the areas that should receive due attention in further investigations.
- Subject
- 2-naphthoic acid; aerobic biodegradation; iron-reducing bacteria; mechanism of anaerobic biodegration; metabolite profiling; anaerobic biodegradatin; anoxia; aromatic ring reduction; benzo(a)pyrene; biodegration; bioremediation; fate of PAHs; genetics
- Identifier
- http://hdl.handle.net/${Handle}
- Identifier
- uon:38581
- Identifier
- ISBN:9783030271480
- Language
- eng
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