Rapid assessment of the impact of microwave heating coupled with UV-C radiation on the degradation of PAHs from contaminated soil using FTIR and multivariate analysis

Eldos, Haneen I.; Ashfaq, Mohammad Y.; Al-Ghouti, Mohammad A.

doi:10.1016/j.arabjc.2020.08.031

Cited by 13 publications

(4 citation statements)

References 53 publications

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“…To detect the transformation of functional groups during the mechanochemical degradation of pyrene, raw soil and milled soil were scanned using an FT-IR spectrometer (Figure ). In the spectra of raw soils, pyrene had peaks near 3044, 900–709, and 1625–1430 cm –1 due to stretching and bending vibrations of C–H on the benzene ring and stretching vibration of the benzene ring CC . After milling, the typical peaks of pyrene almost disappeared, and only one peak, generated by silica, was visible (at 1094, 798, 695, and 467 cm –1 ).…”

Section: Resultsmentioning

confidence: 99%

“…In the spectra of raw soils, pyrene had peaks near 3044, 900−709, and 1625−1430 cm −1 due to stretching and bending vibrations of C−H on the benzene ring and stretching vibration of the benzene ring CC. 22 After milling, the typical peaks of pyrene almost disappeared, and only one peak, generated by silica, was visible (at 1094, 798, 695, and 467 cm −1 ). With extension of ball milling, the peak intensity decreased obviously, indicating that the benzene ring structure was destroyed and pyrene was almost completely degraded.…”

Section: Characterization Of Milled Soilsmentioning

confidence: 99%

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Effect of Silica on Pyrene-Contaminated Soil Subjected to Mechanochemical Remediation

Chen

Han

Yin

et al. 2021

Ind. Eng. Chem. Res.

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Soil contaminated by polycyclic aromatic hydrocarbons (PAHs) is a common problem in the world. Mechanochemical treatment is a promising technology for remediation of PAH-contaminated soil. This study investigated the feasibility of pyrene degradation with silica by mechanochemical remediation. The effects of ball milling time and rotation speed on the removal efficiency of pyrene in soil were also studied. When the milling time was 3 h and the rotation speed was 500 rpm, the removal efficiency of pyrene in soil was over 98%. The intermediate products detected by gas chromatography–mass spectrometry proved that the hydrogenation reaction and the destruction of benzene rings occurred in the milling process. Both graphite and amorphous carbon were detected by Raman spectra. The main degradation pathway and mechanism of pyrene by mechanochemical treatment should be the destruction of benzene rings caused by free radicals and further carbonization.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Milled Soilsmentioning

confidence: 99%

Effect of Silica on Pyrene-Contaminated Soil Subjected to Mechanochemical Remediation

Chen

Han

Yin

et al. 2021

Ind. Eng. Chem. Res.

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“…In future work, we plan to use a high-performance heating system that can be adjusted to electric field intensity values higher than 450 kV/m. Additionally, we will use GC [2], Fourier Transform Infrared Spectrometer [34], and Thermogravimetric Analysis [35] to further investigate the contaminated soil with biodiesel-diesel blends heated by RF heating.…”

Section: Discussionmentioning

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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“…However, industrial wastewater has high salinity, and this coupled with the harsh desert climatic conditions with an average temperature ranging from 35 °C to 55 °C, drastically reduces the treatment potential of existing chemical and biological technologies [ 2 ]. Consequently, various alternate and novel treatment technologies have been applied and studied for their efficiency in degrading hydrocarbon components of wastewater, wastewater solids, and waste soil in different environments and the mechanisms behind each treatment process [ 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Isolation, identification, and screening of biosurfactant-producing and hydrocarbon-degrading bacteria from oil and gas industrial waste

Al-Marri

Eldos

Ashfaq

et al. 2023

Biotechnology Reports

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Rapid assessment of the impact of microwave heating coupled with UV-C radiation on the degradation of PAHs from contaminated soil using FTIR and multivariate analysis

Cited by 13 publications

References 53 publications

Effect of Silica on Pyrene-Contaminated Soil Subjected to Mechanochemical Remediation

Effect of Silica on Pyrene-Contaminated Soil Subjected to Mechanochemical Remediation

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

Isolation, identification, and screening of biosurfactant-producing and hydrocarbon-degrading bacteria from oil and gas industrial waste

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