Treatment system for solid matrix contaminated with fluoranthene. I––Modified extraction technique

Organic pollutants cause many environmental problems to our environment because of their toxicity, non-degradation and ability to long-range transport. The most common organic pollutants are known as persistent organic pollutants (POPs) and are known as hydrocarbons. Effective techniques for the removal of hydrocarbons and heavy metals from soil have drawn great attention. Remediation techniques represent one of the most important of these techniques because of their gentle impact on the environment. The study highlights numerous methods for Physical and chemical remediation techniques with explanation of the ability of some plants and agricultural wastes for remediation.

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“…It was observed that the 3:1 mixture of cyclohexane and ethanol has high extraction efficiency of more than 93%. 53…”

Section: Soil Washing With Water and Organic Solventsmentioning

confidence: 99%

A review on green remediation techniques for hydrocarbons and heavy metals contaminated soil

Abdelhafeez¹,

El-Tohamy²,

ul-Malik³

et al. 2022

10.5267/j.ccl

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“…A number of organic solvents including cyclohexane and ethanol mixture (3:1), dichloromethane, ethanol, methanol, methyl ethyl ketone, N,N-dimethylacetamide, N,N-dimethylformamide, N-butyl acetate, N-propyl acetate and toluene have also been considered in a soil remediation study aiming at extraction of fluoranthene from contaminated soil [14]. The 3:1 mixture of cyclohexane and ethanol was found to be the most suitable solvent due to its high extraction efficiency of approximately 93% and from the point of safety.…”

Section: Soil Washing With Water and Organic Solventsmentioning

confidence: 99%

Remediation of soils contaminated with polycyclic aromatic hydrocarbons (PAHs)

Gan

Lau

2009

Journal of Hazardous Materials

723

303

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“…The TPH level in the extracted solution is can be determined by several methods such as gravimetric or gas chromatography-mass spectrometry (GC-MS) measurement calibrated by an EPA calibration standard. A series of experimental tests were conducted by Rababah and Matsuzawa [5], Khodadoust et al [6]; Silva et al [7], Li et al [8], at laboratory environment for a range of solvents with various ratios and different time to enhance the extraction process.…”

Section: Introductionmentioning

confidence: 99%

“…It was revealed that a ratio of 1:8 was required to achieve the most efficient removal process. However, Rababah and Matsuzawa [5] discovered that the most efficient solvent was cyclohexane and ethanol mixture at a ratio of 3:1, with excellent removal efficiency of around 93% as well as from the safety aspect.…”

Section: Introductionmentioning

confidence: 99%

Determination Of Total Petroleum Hydrocarbons (TPHs) In Weathered Oil Contaminated Soil

Almutairi¹

2020

Preprint

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A new measurement method of weathered crude oil in soil was reviewed. There is no standard method for the extraction of crude oil from soil. Therefore, a basic initial test was carried out and several methods such as gravimetric and gas chromatographymass spectrometry (GC-MS) with various parameters such as weight, solvent and time were altered to improve the measurement process. The gravimetric process was demonstrated to be the most effective for quantifying weathered contamination crude oil in contaminated soil. The dichloromethane DCM, mixture of DCM: hexane (1:1 v/v mix) and mixture of acetone: hexane (1:1 v/v mix) was used to investigate the ability of solvent extraction technique for removing weathered crude oil from soil under various extraction conditions. The mixtures of acetone: hexane (1:1 v/v mix) were demonstrated to be the most effective in removing total petroleum hydrocarbons (TPH) from contaminated soils on average of 341,000 mg/kg. 5 g and 1 g weights of the oil-contaminated samples were studied to select the best weight depending on contamination level. The out comes shown that the 1g of contaminated soil was cleaned in three cycles whilst the 5g of contaminated soil required six cycles. This paper indicated that the selected parameters were able to recover about 97.20% of the weathered crude oil. Also, these parameters were influenced with character of high efficiency, low cost, low toxicity and short time.

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Treatment system for solid matrix contaminated with fluoranthene. I––Modified extraction technique

Cited by 17 publications

References 20 publications

A review on green remediation techniques for hydrocarbons and heavy metals contaminated soil

A review on green remediation techniques for hydrocarbons and heavy metals contaminated soil

Remediation of soils contaminated with polycyclic aromatic hydrocarbons (PAHs)

Determination Of Total Petroleum Hydrocarbons (TPHs) In Weathered Oil Contaminated Soil

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