Bioaccessibility of polycyclic aromatic hydrocarbons in activated carbon or biochar amended vegetated (Salix viminalis) soil

Oleszczuk, Patryk; Godlewska, Paulina; Reible, Danny D.; Kraska, Piotr

doi:10.1016/j.envpol.2017.04.064

Cited by 36 publications

(10 citation statements)

References 48 publications

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“…Hence, the pollutants retained in the substrate were relatively lower and could be absorbed by wetland plants. 25 Second, the release of carbon source from the biochar or AC enhanced the root exudates of plants, mainly due to the modified surface structures or provided the organic matter for BbFA. 26 The root exudates could change the rhizosphere microbial activity and enhance PAH desorption in the substrate.…”

Section: Resultsmentioning

confidence: 99%

“…27 Meanwhile, the adsorption of carbon fractions on the root surface might prevent plants from absorbing pollutants. 25 The lower BbFA accumulated in plants with biochar and AC could reduce the toxic effects of PAH pollutants on plants.…”

Section: Resultsmentioning

confidence: 99%

“…There are two possible reasons for lower BbFA contents accumulated in plants with biochar or AC: first, the BbFA settled in the substrate and adsorbed into biochar or AC. Hence, the pollutants retained in the substrate were relatively lower and could be absorbed by wetland plants . Second, the release of carbon source from the biochar or AC enhanced the root exudates of plants, mainly due to the modified surface structures or provided the organic matter for BbFA .…”

Section: Resultsmentioning

confidence: 99%

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Enhanced Benzofluoranthrene Removal in Surface Flow Constructed Wetlands with the Addition of Carbon

Cao

Kang

et al. 2021

ACS Omega

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Polycyclic aromatic hydrocarbons (PAHs), as hazardous pollutants, could be removed by constructed wetlands (CWs). While the traditional substrate of CWs has a weak adsorption capacity for PAHs, in this study, the carbonous fillersactivated carbon (AC) and biocharwere added into the substrate of surface flow CWs to improve the removal performance of benzofluoranthrene (BbFA), a typical PAH. The results showed that the BbFA removal efficiencies in CWs with the addition of AC and biochar were 11.8 and 1.2% higher than those in the Control group, respectively. Simultaneously, the removal efficiencies of NO3 ––N were 42.8 and 68.4% in these two CWs, while the BbFA content in the substrate and plants with the addition of carbon was lower than that in the Control group. The addition of carbonous filler reduced the absorption of PAHs by plants in CWs and enhanced microbial degradation. The microbial community results showed that the relative abundance of Proteobacteria, especially γ-proteobacteria, was higher with the addition of fillers, which related to PAH degradation.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Enhanced Benzofluoranthrene Removal in Surface Flow Constructed Wetlands with the Addition of Carbon

Cao

Kang

et al. 2021

ACS Omega

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“…A reasonable explanation is not available for this, and the result needs to be con rmed by more data. Many studies have demonstrated that OC and BC can substantially reduce bioaccessibility/bioavailability in soil and sediment for PAHs (and in fewer cases for other HOCs) (Duan et al 2014;Oleszczuk et al 2017;Ruby et al 2016;Semple et al 2013;Werner et al 2010). A recent study by Shen et al found that OC content signi cantly in uence the bioaccessibility of polychlorinated biphenyls in house dust (Shen et al 2019).…”

Section: Oral Bioaccessibility and In Uencing Factorsmentioning

confidence: 99%

Effects of carbonaceous materials and particle size on oral and inhalation bioaccessibility of PAHs and OPEs in airborne particles

Zeng

Chen

Fan

et al. 2021

Environ Sci Pollut Res

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Bioavailability of environmental contaminants is attracting considerable scienti c attention due to growing awareness of its importance for risk assessment. In this study, potential factors governing bioaccessibility of airborne particles-bound polycyclic aromatic hydrocarbons (PAHs) and organophosphorus esters (OPEs) in stimulated gastrointestinal and respiratory tracts were elucidated.Particle concentrations of PAHs and OPEs at the eight sites were 2.4−32.3 ng/m 3 and 1.6−19.9 ng/m 3 , respectively. In ne particles (with aerodynamic diameter less than 2.5 µm), 4-to 6-ring PAHs were more strongly correlated with organic carbon (OC) than elemental carbon (EC); while 3-and 4-ring PAHs in coarse particles (2.5−10 µm) tended to associate with EC. OPEs mostly showed signi cant correlations with EC in both ne and coarse particles. OC and EC exerted a signi cantly restraining effect on the oral and inhalation bioaccessibility of most HOCs in ne particles due to sorption of HOC molecules to these components. Furthermore, the effects varied, which could depend either on the emission sources (for oral bioaccessibility of PAHs) or the physicochemical properties of HOCs (for bioaccessibility of OPEs and inhalation bioaccessibility of PAHs). Linear regression indicated that EC should play a more important role in the inhalation bioaccessibility than the oral bioaccessibility. Particle size of airborne particles is a relatively less signi cant factor determining the bioaccessibility.

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“…Biochar improved soil fertility and reduced bioavailability of PAHs in soil ( Brennan et al., 2014 ). At 2–10% addition, biochar produced at low and high temperature, significantly reduced the bioaccumulation, dissipation, and bioaccessibility of PTEs and PAHs ( Khan et al., 2015 ; Ni et al., 2017 ; Oleszczuk et al., 2017 ). Figures 3 and 4 shows the mechanisms of metal and organic contaminants sorption and stabilization by biochar.…”

Section: Introductionmentioning

confidence: 99%

Biochar can mitigate co-selection and control antibiotic resistant genes (ARGs) in compost and soil

Ejileugha¹

2022

Heliyon

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Bioaccessibility of polycyclic aromatic hydrocarbons in activated carbon or biochar amended vegetated (Salix viminalis) soil

Cited by 36 publications

References 48 publications

Enhanced Benzofluoranthrene Removal in Surface Flow Constructed Wetlands with the Addition of Carbon

Enhanced Benzofluoranthrene Removal in Surface Flow Constructed Wetlands with the Addition of Carbon

Effects of carbonaceous materials and particle size on oral and inhalation bioaccessibility of PAHs and OPEs in airborne particles

Biochar can mitigate co-selection and control antibiotic resistant genes (ARGs) in compost and soil

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