Effect of surfactants, dispersion and temperature on solubility and biodegradation of phenanthrene in aqueous media

Pantsyrnaya, Tatiana; Blanchard, Fred A.; Delaunay, Stéphane; Goergen, Jean‐Louis; Guédon, Emmanuel; Guseva, E. V.; Boudrant, Joseph

doi:10.1016/j.chemosphere.2011.01.024

Cited by 29 publications

(6 citation statements)

References 30 publications

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“…Most studies are designed to test only one or a few (generally LMW) PAHs (Ahn et al 2005; Liu et al 1995), a limited number of specific PAH-degrading isolates or consortia (Boonchan et al 1998; Doong and Lei 2003), or a combination of the two (Guha and Jaffé 1996; Pantsyrnaya et al 2011; Yuan et al 2000; Zhao et al 2009). To the best of our knowledge only one other study has used high-throughput sequencing to evaluate the effects of a nonionic surfactant on the total microbial communities of a field-contaminated soil (Lladó et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Amendment of Brij 30 at that concentration was concluded to potentially reduce degradation of HMW PAHs through inhibition of the specific degraders of those compounds (Lladó et al 2013). Other studies using pure or mixed cultures have found that Brij 30 can reduce microbial PAH-degradation activity at concentrations above the CMC (Pantsyrnaya et al 2012; Yuan et al 2000), although amendments of Brij 30 with other organisms have shown no deleterious effects (Pantsyrnaya et al 2011). In our earlier work, we also observed that Brij 30 inhibited HMW PAH degradation in bioreactor-treated soil when added at a dose corresponding to an aqueous-phase concentration above the CMC (Zhu and Aitken 2010).…”

Section: Discussionmentioning

confidence: 99%

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Surfactant-induced bacterial community changes correlated with increased polycyclic aromatic hydrocarbon degradation in contaminated soil

Singleton

Adrion

Aitken

2016

Appl Microbiol Biotechnol

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Bioremediation as a method for removing polycyclic aromatic hydrocarbons (PAHs) from contaminated environments has been criticized for poor removal of potentially carcinogenic but less bioavailable high-molecular-weight (HMW) compounds. As a partial remedy to this constraint, we studied surfactant addition at sub-micellar concentrations to contaminated soil to enhance the biodegradation of PAHs remaining after conventional aerobic bioremediation. We demonstrated increased removal of 4- and 5-ring PAHs using two nonionic surfactants, polyoxyethylene(4)lauryl ether (Brij 30) and polyoxyethylene sorbitol hexaoleate (POESH), and analyzed bacterial community shifts associated with those conditions. Eight groups of abundant bacteria were implicated as potentially being involved in increased HMW PAH removal. A group of unclassified Alphaproteobacteria and members of the Phenylobacterium genus in particular showed significantly increased relative abundance in the two conditions exhibiting increased PAH removal. Other implicated groups included members of the Sediminibacterium, Terrimonas, Acidovorax, and Luteimonas genera, as well as uncharacterized organisms within the families Chitinophagaceae and Bradyrhizobiaceae. Targeted isolation identified a subset of the community likely using the surfactants as a growth substrate but few of the isolates exhibited PAH-degradation capability. Isolates recovered from the Acidovorax and uncharacterized Bradyrhizobiaceae groups suggest the abundance of those groups may have been attributable to growth on surfactants. Understanding the specific bacteria responsible for HMW PAH removal in natural and engineered systems and their response to stimuli such as surfactant amendment may improve bioremediation efficacy during treatment of contaminated environmental media.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Surfactant-induced bacterial community changes correlated with increased polycyclic aromatic hydrocarbon degradation in contaminated soil

Singleton

Adrion

Aitken

2016

Appl Microbiol Biotechnol

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“…Expansion in electric double layers increases the electrostatic repulsion between microbial cells and soil particles, reducing attachment of microorganisms to soil particles and enhancing microbial transport . In addition to facilitating microbial transport, surfactants such as Tween‐80 can also increase contaminant bioavailability and increase the rate of biodegradation . These observations indicate that the combination of surfactant flushing and biodegradation had positive effects that enhanced TPH removal.…”

Section: Resultsmentioning

confidence: 99%

Combinations of Surfactant Flushing and Bioremediation for Removing Fuel Hydrocarbons from Contaminated Soils

Yan

Chen

et al. 2016

CLEAN Soil Air Water

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A laboratory study was conducted to evaluate the contaminant removal efficiency of four soil flushing approaches (water flushing, surfactant flushing (Tween-80), bioremediation þ water flushing, and bioremediation þ surfactant flushing) in remediating diesel-contaminated soil. Two types of soil (sandy loam and silt loam) were studied. Bioremediation was conducted by the combination of bioaugmentation (adding a diesel-degrading microbial mixture) and biostimulation (adding nitrogen and phosphorus nutrients). Sandy loam, with lower organic carbon content and higher permeability, had higher total petroleum hydrocarbon (TPH) removal efficiency than silt loam for all four flushing treatments. Compared to water flushing, surfactant flushing significantly enhanced the TPH removal efficiency for both sandy loam and silt loams. In contrast, bioremediation alone (without combining with surfactant flushing) failed to enhance the TPH removal efficiency for sandy loam and silt loam. The likely reason was that migration and delivery of the inoculated TPH-degrading microorganisms was constrained by the soil porous matrix, preventing the microorganisms from spreading over the entire contaminated area. Surfactants can enhance bioremediation efficiency by facilitating the migration of degrading microorganisms and increasing contaminant bioavailability. A combination of surfactant flushing and bioremediation had the highest TPH removal efficiency (77.1% for sandy loam and 46.9% for silt loam) among the four flushing treatments. Overall, combining surfactant flushing with bioremediation appears to be a promising remediation strategy for sites contaminated by fuel hydrocarbons.

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“…Although many studies have used surfactants for enhancing bioremediation of fuel-contaminated soil, the effects of surfactant use were controversial. The use of surfactant enhanced solubility of recalcitrant contaminants and accessibility of the degrading microorganism to the contaminants [12][13][14]. However, some researchers reported no effects of surfactant use in soil remediation environments, due to significant surfactant adsorption to the soil, competitive biodegradation as carbon source, and its toxicity [15,16].…”

Section: Introductionmentioning

confidence: 99%

Simple surface foam application enhances bioremediation of oil-contaminated soil in cold conditions

Jeong

Kim

2015

Journal of Hazardous Materials

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Effect of surfactants, dispersion and temperature on solubility and biodegradation of phenanthrene in aqueous media

Cited by 29 publications

References 30 publications

Surfactant-induced bacterial community changes correlated with increased polycyclic aromatic hydrocarbon degradation in contaminated soil

Surfactant-induced bacterial community changes correlated with increased polycyclic aromatic hydrocarbon degradation in contaminated soil

Combinations of Surfactant Flushing and Bioremediation for Removing Fuel Hydrocarbons from Contaminated Soils

Simple surface foam application enhances bioremediation of oil-contaminated soil in cold conditions

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