Effects of Mixed Surfactant on Enhancing High Concentration Anthracene and Pyrene Removal from Contaminated Soil

Yang, Min; Ke, Junfeng; Zhang, Qiwu; He, Xiao-Song

doi:10.1007/s11270-019-4172-3

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…Brij 30 was found to be the only surfactant that decreased soil genotoxicity post-bioremediation . Works by Aitken and colleagues on surfactant and biodegradation also extend into the analysis of the bacterial community pre- and post-bioremediation, with and without the addition of surfactants, and found different effects of surfactants on the bacterial population. , Yang et al compare the efficiency of different surfactants to remove anthracene and pyrene from contaminated soil and found that mixed surfactants performed better than an individual surfactant . Surfactants may also be used in conjunction with other remediation techniques, such as electroremediation and chemical oxidation. , Further discussions of the variety of surfactants available for researchers to use are not the focus of this brief review and are available elsewhere …”

Section: Bioavailability Analysis Of Soil Pre- and Post-remediationmentioning

confidence: 99%

“…81,84 Yang et al compare the efficiency of different surfactants to remove anthracene and pyrene from contaminated soil and found that mixed surfactants performed better than an individual surfactant. 85 Surfactants may also be used in conjunction with other remediation techniques, such as electroremediation and chemical oxidation. 52,86 Further discussions of the variety of surfactants available for researchers to use are not the focus of this brief review and are available elsewhere.…”

Section: ■ Toxicity Testing Of Soil Post-remediationmentioning

confidence: 99%

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Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

Titaley

Simonich

Larsson

2020

Environ. Sci. Technol. Lett.

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Polycyclic aromatic compounds (PACs) encompass a diverse group of compounds, often found in historically contaminated sites. Different experimental techniques have been used to remediate PAC-contaminated soils. This brief review surveyed more than 270 studies concerning remediation of PAC-contaminated soils and found that, while these studies often measured the concentration of 16 parent polycyclic aromatic hydrocarbons (PAHs) pre-and post-remediation, only a fraction of the studies included the measurement of PAC transformation products (PAC-TPs) and other PACs (n = 33). Only a few studies also incorporated genotoxicity/toxicity/mutagenicity analysis pre-and post-remediation (n = 5). Another aspect that these studies often neglected to include was bioavailability, as none of the studies that included measurement of PAH-TPs and PACs included bioavailability investigation. On the basis of the literature analysis, future remediation studies need to consider chemical analysis of PAH-TPs and PACs, genotoxicity/toxicity/mutagenicity, and bioavailability analyses pre-and post-remediation. These assessments will help address numerous concerns, including, among others, the presence, properties, and toxicity of PACs and PAH-TPs, risk assessment of soil post-remediation, and the bioavailability of PAH-TPs. Other supplementary techniques that aid in these analyses and recommendations for future analyses are also discussed.

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Section: Bioavailability Analysis Of Soil Pre- and Post-remediationmentioning

confidence: 99%

Section: ■ Toxicity Testing Of Soil Post-remediationmentioning

confidence: 99%

Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

Titaley

Simonich

Larsson

2020

Environ. Sci. Technol. Lett.

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“…Nonionic surfactants promote microbial growth with good stability. The biosurfactants are favorable to environmental protection [12]. Li [10] discovered that Tween 80 enhanced the fluidity of the microbial membrane so as to promote the transmembrane transport of hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Influences of Four Kinds of Surfactants on Biodegradations of Tar-Rich Coal in the Ordos Basin by Bacillus bicheniformis

Shen,

Liu,

Shi

et al. 2023

Microorganisms

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The biodegradation of tar-rich coal in the Ordos Basin was carried out by Bacillus licheniformis (B. licheniformis) under actions of four kinds of surfactants, namely, a biological surfactant (Rh), a nonionic surfactant (Triton X-100), an anionic surfactant (LAS), and a cationic surfactant (DTAB). The biodegradation rates under the actions of Triton X-100, LAS, Rh, DTAB, and the control group (without surfactant) were 59.8%, 54.3%, 51.6%, 17.3%, and 43.5%, respectively. The biodegradation mechanism was studied by examining the influences of surfactants on coal samples, bacteria, and degradation products in the degradation process. The results demonstrated that Rh, Triton X-100, and LAS could promote bacterial growth, while DTAB had the opposite effect. Four surfactants all increased the cell surface hydrophobicity (CSH) of B. licheniformis, and Triton X-100 demonstrated the most significant promotion of CSH. The order of improvement in microbial cell permeability by surfactants was DTAB > TritonX-100 > LAS > Rh > control group. In the presence of four surfactants, Triton X-100 exhibited the best hydrophilicity improvement for oxidized coal. Overall, among the four surfactants, Triton X-100 ranked first in enhancing the CSH of bacteria and the hydrophilicity of oxidized coal and second in improving microbial cell permeability; thus, Triton X-100 was the most suitable surfactant for promoting B. licheniformis’s biodegradation of tar-rich coal. The GC-MS showed that, after the action of Triton X-100, the amount of the identified degradation compounds in the toluene extract of the liquid product decreased by 16 compared to the control group, the amount of dichloromethane extract decreased by 6, and the amount of ethyl acetate extract increased by 6. Simultaneously, the contents of alkanes in the extracts of toluene and dichloromethane decreased, lipids increased, and ethyl acetate extract exhibited little change. The FTIR analysis of the coal sample suggested that, under the action of Triton X-100, compared to oxidized coal, the Har/H and A(CH2)/A(CH3) of the remaining coal decreased by 0.07 and 1.38, respectively, indicating that Triton X-100 enhanced the degradation of aromatic and aliphatic structures of oxidized coal. Therefore, adding a suitable surfactant can promote the biodegradation of tar-rich coal and enrich its degradation product.

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Surfactant-assisted detachment of oil droplet from the solid quartz substrate in water

Lv,

Ma,

et al. 2024

Colloid Polym Sci

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Effects of Mixed Surfactant on Enhancing High Concentration Anthracene and Pyrene Removal from Contaminated Soil

Cited by 6 publications

References 43 publications

Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

Influences of Four Kinds of Surfactants on Biodegradations of Tar-Rich Coal in the Ordos Basin by Bacillus bicheniformis

Surfactant-assisted detachment of oil droplet from the solid quartz substrate in water

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