Microwave heating coupled with UV-A irradiation for PAH removal from highly contaminated marine sediments and subsequent photo-degradation of the generated vaporized organic compounds

Falciglia, Pietro P.; Catalfo, Alfio; Finocchiaro, Guglielmo; Vagliasindi, Federico G.A.; Romano, S.; Guidi, Guido De

doi:10.1016/j.cej.2017.10.041

Cited by 22 publications

(3 citation statements)

References 41 publications

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“…Soil samples were collected from Prajuabkirikhan Province in Thailand using a clean spatula. Approximately 1 kg of soil was placed in a clean, labeled plastic bag, and dried by heating at 105 • C for 24 h [18]. The dried soil was then sieved to remove large particles and the resulting soil, with particle sizes ranging from 0.10 mm to 0.25 mm, was referred to as fine sand for the experiments.…”

Section: Soil Sample Preparationmentioning

confidence: 99%

Measurement of Dielectric Properties in Soil Contaminated by Biodiesel-Diesel Blends Based on Radio Frequency Heating

et al. 2023

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Several recent studies have found that measuring the dielectric permittivity of soil can be used to determine the level of environmental pollution. However, there is limited research on the measurement of dielectric properties in soil contaminated with biodiesel-diesel blends from Thailand. This paper presents to monitor the dielectric properties of soil contaminated with biodiesel-diesel blends. Specifically, we use the commercial grade diesel B7 to contaminate a sample of sand soil. We also study the measurement of dielectric properties in contaminated soil with the diesel B7 using a dual electrode plate-based radio frequency (RF) heating system. This allows us to observe the behavior of the contaminated soil before and after RF heating treatment. The experimental result showed that the dielectric properties of uncontaminated and contaminated soil were different. In addition, the RF heating system utilizing the electric field intensities of 450 kV/m resulted in the dielectric properties of the contaminated soil becoming similar to those of uncontaminated soil. These findings suggest that using RF heating on contaminated soil samples improve the air in the pore space compared to unheated contaminated soil. This approach may be effective for the treatment of soil in Thailand using an RF heating system with dual electrode plates.

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Section: Soil Sample Preparationmentioning

confidence: 99%

Measurement of Dielectric Properties in Soil Contaminated by Biodiesel-Diesel Blends Based on Radio Frequency Heating

et al. 2023

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“…Numerous studies had emphasized the threats it may cause to the health of humans and ecosystems. (Falciglia et al, 2018;Zeng et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Distribution Characteristics, Source Analysis and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Sediments of Kuye River: A River in a Typical Energy and Chemical Industry Zone

Liu

Zhang

Yang

et al. 2023

Preprint

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“…In recent years, new extraction techniques have been developed to reduce the volume of extraction solvents and the extraction time, such as supercritical fluid extraction (SFS) [15], fluid extraction under pressure (EFSP) [16], microwave assisted extraction (MEAM) [17], micellar extraction (EM) [18] and microwave assisted micellar extraction (EMAM) [19]. The use of surfactant solutions can also be used as solvents [20] and have found a large number of applications in analytical chemistry [21], and as suitable solvents for hydrophobic species [22]. In this case, they can replace the toxic organic solvents used in the other methods.…”

Section: Introductionmentioning

confidence: 99%

The Environmental Impact of Polycyclic Aromatic Hydrocarbons: Mechanism of Extraction by Bio-Surfactant in a Microwave

Adannou¹,

Kamane²,

Prosper³

et al. 2020

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In N'Djaména, the use and marketing of certain hydrocarbons does not comply with any standard in force or with regulations provided for this purpose. Their evaporation and unregulated release into the wild significantly affects the ecosystem. The present work consists in developing a method of extraction from sediments polluted by bio surfactant (rhamnolipid) assisted by microwaves. The goal here is to look for the presence of polycyclic aromatic hydrocarbons in polluted sediments. The rhamnolipid used consists of monorhamnolipids and di-rhamnolipids, its emulsion index is 64.66% and is composed of saturated and unsaturated fatty acids having carbon numbers ranging from 12 to 18. We used the microwave micellar extraction process. It was made by keeping the concentration values fixed at 0.15 g/L and the power at 400 W and more. We observed a positive interaction of the rhamnolipid concentration factors and the power of the microwave to obtain the optimal conditions at the time of 50 S, at the concentration of 0.16 g/L and at the power of 443 W for a rate of optimal extraction of 0.91%. Chromatographic analysis by GC-MS of the optimum extracts allowed us to identify twelve (12) C10 to C43 n-alkanes and eight (8) PAHs. It emerges from this analysis that the rhamnolipid extracts seven (7) Polycyclic Aromatic Hydrocarbons in equivalent proportions while the tween 80 extracts only four (4) Polycyclic Aromatic Hydrocarbons with a high proportion (80.02%) of benzo [a] antracene.

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Microwave heating coupled with UV-A irradiation for PAH removal from highly contaminated marine sediments and subsequent photo-degradation of the generated vaporized organic compounds

Cited by 22 publications

References 41 publications

Measurement of Dielectric Properties in Soil Contaminated by Biodiesel-Diesel Blends Based on Radio Frequency Heating

Measurement of Dielectric Properties in Soil Contaminated by Biodiesel-Diesel Blends Based on Radio Frequency Heating

Distribution Characteristics, Source Analysis and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Sediments of Kuye River: A River in a Typical Energy and Chemical Industry Zone

The Environmental Impact of Polycyclic Aromatic Hydrocarbons: Mechanism of Extraction by Bio-Surfactant in a Microwave

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