Decrypting the synergistic action of the Fenton process and biochar addition for sustainable remediation of real technogenic soil from PAHs and heavy metals

Mazarji, Mahmoud; Minkina, Tatiana; Sushkova, Svetlana; Mandzhieva, Saglara; Barakhov, Anatoly; Barbashev, Andrey; Dudnikova, Tamara; Lobzenko, Ilia; Giannakis, Stefanos

doi:10.1016/j.envpol.2022.119096

Cited by 17 publications

(4 citation statements)

References 84 publications

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“…This fact indicates that the transformation of 5-and 6-ringed pollutants proceeds with the formation of intermediate compounds of pyrene and chrysene, followed by the destruction of the PAH molecule to simple compounds. For example, pyrene in the process of microbiological or chemical oxidation according to the Fenton reaction type (Luo et al, 2014;Qin et al, 2017;Yan et al, 2017;Wang et al, 2018;Mazarji et al, 2021Mazarji et al, , 2022.…”

Section: Resultsmentioning

confidence: 99%

Main factors in polycyclic aromatic hydrocarbons accumulations in the long-term technogenic contaminated soil

Dudnikova

Sushkova

Minkina

et al. 2023

EJSS

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The PAHs transformation in the soils of the coal mining enterprises impact zones and thermal power plants remains poorly studied. In turn, coal mining can be considered as a primary cycle in the production of electricity. One of the main sources of negative environmental impact is the coal mining industry located on the territory of the upland in the south of the East European Plain. The features of PAHs accumulation in the soils of fuel and energy enterprises have been studied on the example of mines impact zones with different service life and the current coal-fired power plant. It was established that, regardless of the period and intensity of the emission source, as well as its current status, the polycyclic aromatic hydrocarbons (PAHs) content in the soils of the impact zones was significantly higher than in the soils of the background territory. The content of low molecular and high molecular weight PAHs in the impact zones soils differed depending on the land use type, as well as the period and intensity of an industrial effect type. The pollutants content of in the soils of all considered impact zones significantly exceeded the background values and according to the low molecular weight PAHs content in the soils, they formed the following decreasing series: Mayskiy ≥ Ayutinsky > Novoshahtinsk > Power station > Background. According the high molecular weight PAHs content, the series changed to: Novoshahtinsk >Mayskiy ≥ Ayutinsky > Power station > Background. Soil pollution markers for enterprises of the fuel and energy complex were identified as pyrene and chrysene, which are part of coal, formed from the hydrocarbon sources. The influence of the power plant was accompanied by the benzo(g,h,i)perylene concentration increase.

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Section: Resultsmentioning

confidence: 99%

Main factors in polycyclic aromatic hydrocarbons accumulations in the long-term technogenic contaminated soil

Dudnikova

Sushkova

Minkina

et al. 2023

EJSS

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“…In this regard, PAHs in the lower soil horizons become less labile, making them inaccessible to microbial degraders (Delegan et al, 2022;Ren et al, 2018). In addition, the activity of PAH-degrading microorganisms is predominantly observed in the most aerated 0-20 cm layer, which also does not favour the biodegradation of pollutants deep in the soil profile (Mazarji et al, 2022;Ren et al, 2018). Consequently, this group of pollutants is poorly degraded in the depth of the soil profile (Bu et al, 2009).…”

Section: Pah Distribution In the Soil Profilementioning

confidence: 99%

Profile distribution of polycyclic aromatic hydrocarbons in coastal soils of the Lower Don and Taganrog Bay, Russia

Dudnikova,

Minkina,

Sushkova

et al. 2023

EJSS

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The main regularities of pollutant distribution through the soil profile were established based on the analysis of the content of 15 priority PAHs in 29 soil sections of different soil types located in the coastal zone of the Lower Don and Taganrog Bay with different anthropogenic loads. It was shown that the total content of PAHs in the 0-20 cm layer of soils of coastal territories varies from 172 µg kg-1 to 16006 µg kg-1. In addition, according to the total pollution indicator, (Zc) determines the level of soil pollution, which varies from "not polluted" to "extremely polluted". The influence of pollution sources falls on the 0-20 cm layer of soils of different types and is especially pronounced for subordinate landscapes. With increasing sampling depth, the total PAH content decreases with the redistribution of individual compounds of the PAH group towards the dominance of low molecular weight and 4-ring compounds in the composition of the sum of 15 PAHs and depends largely on the content of organic matter and soil pH. Based on the cluster analysis results, the main factor determining the profile distribution of PAHs is the type of pollutant origin source and its intensity.

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“…This is similar to the findings of others. For example, Mazarji [53], using a PCA analysis, found that the level of biochar amendment affected the degree of total PAH degradation in the presence or absence of heavy metals; the biochars also sorbed and prevented heavy-metal transport, leading to moderate PAH degradation. Kong [54] showed that biochar and heavy metals played an important role in mitigating organic toxicity with respect to seed germination and plant growth.…”

Section: The Relationship Between Ksm Biochar Soil CD and Soil Proper...mentioning

confidence: 99%

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

Cui,

Ma,

Quan

et al. 2023

Agriculture

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Biochar has been widely studied to reduce multiple contaminant sources in one matrix (e.g., several heavy metals in soils), yet less attention has been paid to accelerating pesticide degradation while in the presence of any heavy metals, such as when kasugamycin (KSM) and cadmium (Cd) are both present in soil. While KSM has low toxicity compared to other pesticides, it can be a potential health risk when applied to vegetable crops, especially when KSM is used or overapplied to achieve rapid reductions in insect and disease pressure. The degradation behavior of KSM (2 kg ha−1) in the presence of Cd (20 mg kg−1) and biochar (5% by wt.) when growing spinach (Spinacia oleracea) was studied. The biochar increased spinach shoot and root biomass by 51.0–54.8% and 24.4–39.0%, respectively, compared to the KSM treatment only. Compared to the treatments that did not receive biochar, the biochar application increased the KSM degradation in the soil by 8.4–68.4% and, subsequently, less KSM was absorbed by the spinach roots (18.0–48.4%) and shoots (33.0–33.2%). The KSM degradation rate, as a function of soil depth, was enhanced in the presence of Cd. The biochar also effectively decreased the KSM concentration with soil depth, reducing downward KSM migration. The KSM degradation, increased by the biochar, led to smaller organic moieties and some macromolecular organic phases. In soils that are contaminated with Cd and where vegetables are raised, biochar may be used as an environmentally friendly proponent for increasing KSM degradation, reducing KSM downward transport and, thus, protecting environmental and human health.

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Decrypting the synergistic action of the Fenton process and biochar addition for sustainable remediation of real technogenic soil from PAHs and heavy metals

Cited by 17 publications

References 84 publications

Main factors in polycyclic aromatic hydrocarbons accumulations in the long-term technogenic contaminated soil

Main factors in polycyclic aromatic hydrocarbons accumulations in the long-term technogenic contaminated soil

Profile distribution of polycyclic aromatic hydrocarbons in coastal soils of the Lower Don and Taganrog Bay, Russia

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

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