Polycyclic aromatic hydrocarbon extraction from a coal tar-contaminated soil using aqueous solutions of nonionic surfactants

Paterson, Iain F.; Chowdhry, Babur Z.; Leharne, Stephen A.

doi:10.1016/s0045-6535(98)00515-3

Cited by 63 publications

(32 citation statements)

References 14 publications

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“…The removal of HOCs from soil matrix in presence of surfactants is a complex process, since the surfactants first remove the HOCs from the soil and at the same time surfactants are also adsorbed on the soil surfaces and change the surface characteristic, as a result, some times HOCs are readsorbed on the soil surface. Due to the complex nature of the process many researchers have studied on removal efficiency of the organic compounds from the soil matrix using different surfactants like single synthetic [28,95,105,[257][258][259][260][261][262][263][264], mixture of synthetic [105,261,264,265], and biosurfactants [28,193,[266][267][268] to improve the basic understanding.…”

Section: Surfactant Enhanced Hocs Removalmentioning

confidence: 99%

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Surfactant-enhanced remediation of organic contaminated soil and water

Paria

2008

Advances in Colloid and Interface Science

462

237

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Section: Surfactant Enhanced Hocs Removalmentioning

confidence: 99%

“…They report desorption of HOCs from artificially contaminated soil is usually very high in compared to desorption from weathered and aged coal tarcontaminated soil. Paterson et al [95] have developed a model for calculating the removal efficiency of organic hydrocarbon in presence of surfactant:…”

Section: Single Surfactantsmentioning

confidence: 99%

Surfactant-enhanced remediation of organic contaminated soil and water

Paria

2008

Advances in Colloid and Interface Science

462

237

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“…et al 16 also demonstrated that micelles of anionic and nonionic surfactants enhanced the efficiency of extracting PAHs from coal tar-contaminated soils. Moreover, Guha et al 17 observed that fewer hydrophobic PAHs could be dissolved in the interface between the micelle cores and water, underscoring the tendency of surfactant micelles to increase the solubility of hydrophobic PAHs when various PAH substances dissolved simultaneously.…”

Section: Introductionmentioning

confidence: 98%

Removal of Vaporous Naphthalene Using Polyoxyethylenated Nonionic Surfactants

Huang

Lee

2003

Journal of the Air & Waste Management Association

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Previous research has demonstrated that an anionic surfactant can increase the solubility of the vapor phases of both naphthalene and sulfur dioxide in water. This study examines the feasibility of removing polycyclic aromatic hydrocarbons (PAHs) during gas absorption by adding the polyoxyethylenated nonionic surfactants tetraethylene glycol monodecyl ether (C 10 E 4 ), octaethylene glycol monodecyl ether (C 10 E 8 ), and octaethylene glycol monotetradecyl ether (C 14 E 8 ), to water. The apparent solubility and absorption rates of naphthalene in surfactant solution were slightly higher than in pure water at a concentration lower than the critical micelle concentration (CMC). However, the apparent equilibrium naphthalene solubility increased linearly in proportion to the concentrations of nonionic surfactants because of the solubilization effect of micelles at concentrations above the CMC. The solubilization effect exceeded that of the reduced mass transfer coefficient, increasing the rate of absorption of vaporous naphthalene. For the four surfactants, the capacity to solubilize naphthalene was in the order C 10 E 4 Ͼ C 14 E 8 Ͼ C 10 E 8 Ͼ sodium dodecyl sulfate (SDS) and was related to the hydrophile-lipophile balance values of the surfactants. The enrichment factors, which can express the degree of naphthalene solubility in solution, were 6.09 -14.2 at a surfactant concentration of 0.01 M for the three polyoxyethylenated nonionic surfactants. Empirical findings confirm that adding nonionic surfactants increases the absorption efficiency of hydrophobic organic compounds (HOCs) using spray or packed tower.

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“…The recovery obtained in the determination of polycyclic aromatic hydrocarbons in marine sediments using microwave-assisted nonionic surfactant media shows that the accuracy of the extraction method is very good [22]. The use of nonionic surfactant solutions in various analytical and environmental procedures [24][25][26] and the effective removal of PAHs from solid environmental samples have been reported [27,28].…”

Section: Introductionmentioning

confidence: 99%

Factors Controlling Leaching of Polycyclic Aromatic Hydrocarbons from Petroleum Source Rock Using Nonionic Surfactant

et al. 2012

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The extraction of polycyclic aromatic hydrocarbons (PAHs) from petroleum source rock by nonionic surfactants with the assistance of microwave irradiation was investigated and the conditions for maximum yield were determined. The results showed that the extraction temperatures and type of surfactant have significant effects on extraction yields of PAHs. Factors such as surfactant concentration, irradiation power, sample/solvent ratio and mixing surfactants (i.e., mixture of surfactant at specific ratio) also influence the extraction efficiencies for these compounds. The optimum temperature for microwaveassisted nonionic surfactant extraction of PAHs from petroleum source rock was 120°C and the best suited surfactant was Brij 35. The new method showed extraction efficiencies comparable to those afforded by the Soxhlet extraction method, but a reduction of the extraction times and environmentally friendliness of the new nonionic surfactant extraction system are clear advantages. The results also show that microwave-assisted nonionic surfactant extraction is a good and efficient green analytical preparatory technique for geochemical evaluation of petroleum source rock.

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Polycyclic aromatic hydrocarbon extraction from a coal tar-contaminated soil using aqueous solutions of nonionic surfactants

Cited by 63 publications

References 14 publications

Surfactant-enhanced remediation of organic contaminated soil and water

Surfactant-enhanced remediation of organic contaminated soil and water

Removal of Vaporous Naphthalene Using Polyoxyethylenated Nonionic Surfactants

Factors Controlling Leaching of Polycyclic Aromatic Hydrocarbons from Petroleum Source Rock Using Nonionic Surfactant

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