A comparative study to evaluate natural attenuation, mycoaugmentation, phytoremediation, and microbial-assisted phytoremediation strategies for the bioremediation of an aged PAH-polluted soil

García‐Sánchez, Mercedes; Košnář, Zdeněk; Mercl, Filip; Aranda, Elisabet; Tlustoš, Pavel

doi:10.1016/j.ecoenv.2017.08.012

Cited by 112 publications

(33 citation statements)

References 42 publications

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“…Land farming is a cost-effective and safe treatment for polluted land, in which the native microbiome at a polluted site is stimulated for PAH degradation via improving aeration, moisture, and nutrient levels so that the connection of microbes is improved with pollutants and nutrients (Agnello et al, 2016;Kuppusamy et al, 2017). The reduction rate is much higher for LMW PAHs (2-3 rings) than HMW PAHs (4-6 rings), and this method is applied usually for a thin layer of land surface (Das and Das, 2015;Silva-Castro et al, 2015;García-Sánchez et al, 2018). This simple method requires less maintenance, nearly no cleanup obligations, and slight monitoring efforts.…”

Section: Strategies For Polycyclic Aromatic Hydrocarbon Bioremediationmentioning

confidence: 99%

“…Phytoremediation is an in situ method in which the plants are used to remove PAHs or to convert them into less harmful components in soil, sediment, surface water, and groundwater (Das and Das, 2015). Plants remediate the organic pollutants by different mechanisms such as phytoextraction (withdrawal of pollutants from soil), phytovolatilization (atmospheric release of volatile pollutants from soil via plant organs), and phytodegradation (degradation of pollutants by enzymes released from plant and/or plant-associated microbes) (García-Sánchez et al, 2018). Plants help in soil aeration by increasing permeability and by cracking soil masses, which favor PAH aerobic biodegradation (Gitipour et al, 2018).…”

Section: Strategies For Polycyclic Aromatic Hydrocarbon Bioremediationmentioning

confidence: 99%

“…They found an increased proportion of Proteobacteria and decreased proportion of Bacteroidetes in consortium SWO along with lower Shannon and Simpson indices. Microbial diversity of the diesel-degrading consortium and key genes for degrading enzymes were studied by 16S rRNA amplicon and shotgun metagenome sequencing, respectively (García-Sánchez et al, 2018). Zhang et al (2019) performed interesting research using artificially pyrene-polluted sediment, which covered studies of bacterial synergism, their metabolic profile under pyrene stress, construction of metagenome-assembled genomes (MAGs), and coordination of aromatic hydrocarbon-degrading genes with various metabolic pathways (such as carbohydrate metabolism, ATP synthesis, carbon fixation, nitrogen metabolism, sulfate metabolism, acylglycerol degradation, and Calvin cycle) (Zhang et al, 2019).…”

Section: Insights From -Omics Approaches Used For Elucidating Polycycmentioning

confidence: 99%

“…The PAH pollution, either directly or indirectly, is strongly affecting the health and well-being of humans, along with other organisms across the planet (García-Sánchez et al, 2018). The choice of appropriate strategies for PAH remediation is always critical, as it is highly dependent on two major parameters: polluted matrix and environmental conditions (Kuppusamy et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Polycyclic Aromatic Hydrocarbons: Sources, Toxicity, and Remediation Approaches

et al. 2020

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Polycyclic aromatic hydrocarbons (PAHs) are widespread across the globe mainly due to long-term anthropogenic sources of pollution. The inherent properties of PAHs such as heterocyclic aromatic ring structures, hydrophobicity, and thermostability have made them recalcitrant and highly persistent in the environment. PAH pollutants have been determined to be highly toxic, mutagenic, carcinogenic, teratogenic, and immunotoxicogenic to various life forms. Therefore, this review discusses the primary sources of PAH emissions, exposure routes, and toxic effects on humans, in particular. This review briefly summarizes the physical and chemical PAH remediation approaches such as membrane filtration, soil washing, adsorption, electrokinetic, thermal, oxidation, and photocatalytic treatments. This review provides a detailed systematic compilation of the eco-friendly biological treatment solutions for remediation of PAHs such as microbial remediation approaches using bacteria, archaea, fungi, algae, and co-cultures. In situ and ex situ biological treatments such as land farming, biostimulation, bioaugmentation, phytoremediation, bioreactor, and vermiremediation approaches are discussed in detail, and a summary of the factors affecting and limiting PAH bioremediation is also discussed. An overview of emerging technologies employing multi-process combinatorial treatment approaches is given, and newer concepts on generation of value-added by-products during PAH remediation are highlighted in this review.

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Section: Strategies For Polycyclic Aromatic Hydrocarbon Bioremediationmentioning

confidence: 99%

Section: Strategies For Polycyclic Aromatic Hydrocarbon Bioremediationmentioning

confidence: 99%

Section: Insights From -Omics Approaches Used For Elucidating Polycycmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polycyclic Aromatic Hydrocarbons: Sources, Toxicity, and Remediation Approaches

et al. 2020

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“…In the environment, anthracene concentration can range from 0.002 ppm to 0.07 ppm, on unpolluted and aged-PAH polluted soils, respectively, or 100 ppm on coal tar (Wise et al, 1998;Nadal et al, 2004;García-Sánchez et al, 2018). The concentrations compatible with aquatic life are very low, as determined by guidelines from the United States Environmental Protection Agency (USEPA) (8.3 ppm, Maximum Contaminant Level (MCL) -highest level of a contaminant that is allowed in drinking water).…”

Section: Introductionmentioning

confidence: 99%

Exploring the response of Marchantia polymorpha: Growth, morphology and chlorophyll content in the presence of anthracene

Spinedi

Rojas

Storb

et al. 2019

Plant Physiology and Biochemistry

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Polycyclic aromatic hydrocarbons (PAHs) were identified as hazardous contaminants that are ubiquitous and persistent in aquatic environments, where bryophytes sensu lato (mosses, liverworts and hornworts) are frequently present. Marchantia polymorpha (Class Hepaticae; thalloid liverwort) is known to respond fast to changes in the environment; it accumulates toxic substances in its tissues due to the lack of vascular and radicular systems and a reduced or absent cuticle. The objective of the present study was to quantify the effects of increasing concentrations of anthracene (0, 50 100, 280 µM) on the germination of propagules, plant morphology and chlorophyll content index (CCI) in M. polymorpha under in vitro cultures. The results show that anthracene had no statistical effect on germination or propagula formation. However, plants exposed to anthracene for 30 days showed significantly lowered the content of chlorophyll (measured as CCI), irregular growth patterns and the induction of thalli asexual reproduction as evidenced by the production of multicellular viable propagules in gemmae cups. Results of epifluorescence microscopy also showed concomitant accumulation of anthracene in the cell walls. All of these distinctive morphological and physiological adaptive responses indicators, clearly suggest that M. polymorpha are capable of resisting high (coal tar) anthracene concentrations.

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