Extraction of phenanthrene and fluoranthene from contaminated sand using palm kernel and soybean oils

Lau, Ee Von; Gan, Suyin; Ng, Hoon Kiat

doi:10.1016/j.jenvman.2012.04.029

Cited by 12 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3) showed the correlation coefficient (r 2 ) of 0.94-1 for all PAHs in soil and sediment, under the assumption of negligible PAH biodegradation during the experiment. These results indicate that the desorption of PAHs into the oil phase follows first order kinetics and are consistent with results from previous research conducted by Lau et al (2012) and Gong et al (2005a). Accordingly, diffusion of PAHs from low contaminated soil/sediment occurs from the surface of the soil/ sediment particles, dissolving directly into the oil phase, i.e.…”

Section: Desorption Kinetic Modellingsupporting

confidence: 92%

“…Although this is the first study that uses a chemometric approach to optimize an oil extraction conditions for PAHs from soil/sediment, other studies have investigated the effect of extraction temperature, time and oil-to-soil ratio (Gong et al 2005a;Lau et al 2014;Pannu et al 2004). Lau et al (2012) studied the extraction of phenanthrene and fluoranthene from sand using soybean oil and palm kernel oil at 30 °C and 70 °C, using a 1:1 soil-to-oil ratio for 24 h. However, the study did not consider temperatures less than 30 °C, shorter extraction periods, nor the oil volume. PAH extraction efficiencies were less than 75%, even at 70 °C for either oil.…”

Section: Optimisation Of Oil Extraction Parametersmentioning

confidence: 99%

“…No analogous studies comparing PAH extraction rates between various matrices have been reported in the literature. On the other hand, Lau et al (2012) have investigated palm kernel oil and soybean oil as potential alternative solvents and reported higher mass transfer rate constants for the extraction of phenanthrene and fluoranthene from sand. pyrene (g, h) in sediment and soil.…”

Section: Desorption Kinetic Modellingmentioning

confidence: 99%

“…Other less common techniques, such as Pasteur pipette extraction, have also been reported, but are limited to small sample sizes which may not be representative of samples with poor homogeneity (Henner et al 1997). To mitigate these issues, vegetable oils have been used to extract PAHs from solid matrices due to their non-toxic and biodegradable nature, while improving the extraction efficiency and reducing the cost (Gong et al 2006;Lau et al 2012;Pannu et al 2004;Yap et al 2010).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Greener extraction of polycyclic aromatic hydrocarbons from soil and sediment using eucalyptus oil

et al. 2022

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons are toxic pollutants which persist in the environment. Extraction of polycyclic aromatic hydrocarbons requires large volumes of toxic organic solvents, but the use of non-hazardous solvents provides a potentially cleaner approach to quantifying polycyclic aromatic hydrocarbons in environmental matrices. Here we investigated the efficiency of eucalyptus oil to extract polycyclic aromatic hydrocarbons from spiked soil and sediment. Eucalyptus oil extraction conditions including temperature, time, and volume of oil were optimized employing a Box–Behnken experimental design, and the desorption kinetics of phenanthrene, pyrene, chrysene, and benzo[a]pyrene were evaluated using an empirical first order kinetic model. Results show that extraction efficiency from soil, of 112% for phenanthrene, 108% for pyrene, 102% for chrysene and 98% for benzo[a]pyrene, is higher than that from sediment, of 90, 111, 84 and 82%, respectively. This may be due to soil possessing 12 times more organic carbon. Recoveries higher than 77% were obtained over the concentration range 0.5–10 mg/kg for the tested polycyclic aromatic hydrocarbons, with limits of detection lower than 63 µg/kg and limits of quantitation lower than 125 µg/kg. These findings suggest that eucalyptus oil has potential as a safer solvent to extract hydrophobic contaminants.

show abstract

Section: Desorption Kinetic Modellingsupporting

confidence: 92%

Section: Optimisation Of Oil Extraction Parametersmentioning

confidence: 99%

Section: Desorption Kinetic Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Greener extraction of polycyclic aromatic hydrocarbons from soil and sediment using eucalyptus oil

et al. 2022

View full text Add to dashboard Cite

show abstract

“…This is possible because vegetable oils are characterized by their hydrophobicity and long aliphatic carbon chain structure which forms hydrophobic interaction with non-polar molecules [ 13 ]. The use of vegetable oils for removing PAHs from contaminated soils has also been reported in the literature [ 63 , 64 , 65 , 66 ].…”

Section: Soil Remediation Processesmentioning

confidence: 99%

Coupling of Anodic Oxidation and Soil Remediation Processes: A Review

et al. 2020

View full text Add to dashboard Cite

In recent years, due to industrial modernization and agricultural mechanization, several environmental consequences have been observed, which make sustainable development difficult. Soil, as an important component of ecosystem and a key resource for the survival of human and animals, has been under constant contamination from different human activities. Contaminated soils and sites require remediation not only because of the hazardous threat it possess to the environment but also due to the shortage of fresh land for both agriculture and urbanization. Combined or coupled remediation technologies are one of the efficient processes for the treatment of contaminated soils. In these technologies, two or more soil remediation techniques are applied simultaneously or sequentially, in which one technique complements the other, making the treatment very efficient. Coupling anodic oxidation (AO) and soil remediation for the treatment of soil contaminated with organics has been studied via two configurations: (i) soil remediation, ex situ AO, where AO is used as a post-treatment stage for the treatment of effluents from soil remediation process and (ii) soil remediation, in situ AO, where both processes are applied simultaneously. The former is the most widely investigated configuration of the combined processes, while the latter is less common due to the greater diffusion dependency of AO as an electrode process. In this review, the concept of soil washing (SW)/soil flushing (SF) and electrokinetic as soil remediation techniques are briefly explained followed by a discussion of different configurations of combined AO and soil remediation.

show abstract

Optimization and Comparison of Microwave‐Assisted Extraction, Supercritical Fluid Extraction, and Eucalyptus Oil–Assisted Extraction of Polycyclic Aromatic Hydrocarbons from Soil and Sediment

Kariyawasam

Doran

Howitt

et al. 2023

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) are persistent organic compounds of major concern that mainly accumulate in soils and sediments, and their extraction from environmental matrices remains a crucial step when determining the extent of contamination in soils and sediments. The objective of the present study was to compare the extraction of PAHs (phenanthrene, pyrene, chrysene, and benzo[a]pyrene) from spiked soil and sediment using supercritical fluid extraction (SFE) with ethanol as the modifier, microwave‐assisted extraction (MAE), and eucalyptus oil–assisted extraction (EuAE). Recoveries of PAHs were comparable between the three methods, and >80% of applied pyrene, chrysene and benzo[a]pyrene were recovered. The most efficient method of extracting PAHs from naturally incurred soils with different levels of contamination was SFE. A longer extraction time was required for the EuAE method compared with SFE and MAE under optimized conditions. However, EuAE required lower extraction temperatures (15–20 °C) compared with SFE (80 °C) and MAE (110–120 °C), and consumed less solvent than SFE and MAE. Compared with hexane/acetone used in MAE, the use of ethanol in SFE and eucalyptus oil in EuAE can be considered as more sustainable approaches to efficiently extract PAHs from spiked/naturally contaminated soils and sediments. And, although less efficient for matrices containing higher carbon content, EuAE offered a cheap, low‐tech approach to extracting PAHs. Environ Toxicol Chem 2023;42:982–994. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

show abstract

Extraction of phenanthrene and fluoranthene from contaminated sand using palm kernel and soybean oils

Cited by 12 publications

References 25 publications

Greener extraction of polycyclic aromatic hydrocarbons from soil and sediment using eucalyptus oil

Greener extraction of polycyclic aromatic hydrocarbons from soil and sediment using eucalyptus oil

Coupling of Anodic Oxidation and Soil Remediation Processes: A Review

Optimization and Comparison of Microwave‐Assisted Extraction, Supercritical Fluid Extraction, and Eucalyptus Oil–Assisted Extraction of Polycyclic Aromatic Hydrocarbons from Soil and Sediment

Contact Info

Product

Resources

About