Impact of humic substances on the bioremediation of polycyclic aromatic hydrocarbons in contaminated soils and sediments: A review

Gholami, Solmaz; Behnami, Ali; Hesami Arani, Mohsen; Rezaei Kalantary, Roshanak

doi:10.1007/s10311-023-01678-z

Cited by 8 publications

(3 citation statements)

References 90 publications

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“…Their structures oxidated by oxygenase were broken down to compounds with one benzene-ring, such as di-methyl phthalate and phthalic acids. Additionally, the presence of humic acids in sediment proved to enhance PAH biodegradation (Vacca et al, 2005;Gholami et al, 2024). Furthermore, cyanobacterial species revealed their capacities to degrade pyrene and phenanthrene PAHs and phthalates like Oscillatoria sp.…”

Section: Discussionmentioning

confidence: 99%

Assessment of microalgae diversity in relation to hydrocarbon pollutants in port sediments: Case study of Sfax port-Tunisia

Feki,

Keskes,

Chaabane

et al. 2024

Preprint

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The present research has been particularly oriented to characterize the organic pollutants as phthalates, hydrocarbons and in Sfax port sediments. As the microalgae performed good results in their bioaccumulation and biodegradation, the microalgae species in both port sediments and column waters were counted and identified. Di-n-butyl phthalate, Di-2-ethylhexyl phthalate as well as aliphatic and polycyclic aromatic hydrocarbons were identified through GC-MS chromatograms released on sediment extracts of three samples taken from the Sfax port basins located on the eastern Tunisian coast. Microalgae identification and cell counts of sediment samples as well as water columns were performed applying the sedimentation method of Utermöhl. The chromatograms revealed developed peaks of phthalates compared to those of aliphatic hydrocarbons with successive humps corresponding to an unresolved complex mixture, corroborating an advanced degree of biodegradation. The n-alkanes distribution and the development of the bb-epimers of C27 − 29 steranes proved the petrogenic hydrocarbons origin. This result was equally confirmed by the ratio of fluoranthene and pyrene PAHs concentrations. The hydrocarbons degradation was assigned to the relative abundance of certain microalgae species, already recognized to degrade hydrocarbons pollutants such as diatoms Skeletonema costatum and Nitzschia sp.. The proliferation of toxic dinoflagellates as Karenia selliformis enhanced the high pollution degree of port sediments. Whereas other microalgae species displaying high abundance in port sediments, revealed their capacities to degrade organic matter and PAHs. The microalgae-cyanobacteria consortium as Pinnularia sp.- Merismopedia sp. seemed to display a powerful tolerance to both trace metals and organic pollutants.

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Section: Discussionmentioning

confidence: 99%

Assessment of microalgae diversity in relation to hydrocarbon pollutants in port sediments: Case study of Sfax port-Tunisia

Feki,

Keskes,

Chaabane

et al. 2024

Preprint

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“…Humic substances (HSs) are defined as macromolecular compounds that are a key source of organic matter, and their presence in the soil profile is crucial to ensure its proper structure. , Furthermore, due to their specific molecular structure, HSs have the ability to interact with metal ions; therefore, they can be considered as micronutrient carriers but also as substances for heavy metal immobilization. , The mentioned functions determine the main application of HSs for agricultural purposes. Therefore, the use of HSs as fertilizer components, as well as agents for soil bioremediation, has been widely discussed in the literature. − However, in recent years, the ideas of alternative applications of HSs, such as food additives, surfactants, and cosmetics, have become evident. − The growing use of HSs can be observed on the basis of data in market reports. According to the information given on the Global Market Insights Web site, the size of the market related to only humic acids, which are one fraction of HSs, in 2021 was valued at 532.7 million dollars, when, according to predictions, this value will rise to about 1.1 billion dollars in 2028…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the use of HSs as fertilizer components, as well as agents for soil bioremediation, has been widely discussed in the literature. 5 − 8 However, in recent years, the ideas of alternative applications of HSs, such as food additives, surfactants, and cosmetics, have become evident. 9 − 12 The growing use of HSs can be observed on the basis of data in market reports.…”

Section: Introductionmentioning

confidence: 99%

Application of Alkaline Deep Eutectic Solvents as a Green Alternative to the Traditional Extractants for the Isolation of Humic Substances

Nieweś,

Marecka,

Huculak-Mączka

2024

ACS Omega

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The presented study focused on the possibility of using alkaline deep eutectic solvents (ADESs) as green extractants for the isolation of humic substances (HSs) from peat and lignite in a process intensified by ultrasound. For this purpose, the extraction procedure was statistically described on the basis of the Box−Behnken design, and the carboxyl group content in the obtained products was optimized due to the ADES composition, ultrasound intensity, and extraction time. For optimal extraction conditions, the experimental carboxyl content in the isolated products was equal to 3.71 and 2.96 mmol g −1 for the HSs extracted from peat and lignite, respectively. These values were similar to the results for the reference samples, which were HSs extracted using 0.1 M NaOH, as well as humic acids and sodium humates purchased from Sigma-Aldrich. The qualitative assessment of the products obtained was based on spectroscopic methods, including FTIR, 1 H NMR, and UV−vis. The analyses carried out for the isolated samples revealed the characteristic structures of HSs, including components of aliphatic chains and aromatic core as well as carboxyl, ester, and amino groups. Simultaneously, the results of the spectral ratio of E 280 /E 472 showed the significant differences between the relative amount of lignin for the samples tested.

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Adsorption and Degradation Effects of Microorganisms Immobilized on Straw-Sludge-Based Humus for Phenanthrene in Water

Yu,

Zhang,

Zhang

2025

Lecture Notes in Civil Engineering

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Impact of humic substances on the bioremediation of polycyclic aromatic hydrocarbons in contaminated soils and sediments: A review

Cited by 8 publications

References 90 publications

Assessment of microalgae diversity in relation to hydrocarbon pollutants in port sediments: Case study of Sfax port-Tunisia

Assessment of microalgae diversity in relation to hydrocarbon pollutants in port sediments: Case study of Sfax port-Tunisia

Application of Alkaline Deep Eutectic Solvents as a Green Alternative to the Traditional Extractants for the Isolation of Humic Substances

Adsorption and Degradation Effects of Microorganisms Immobilized on Straw-Sludge-Based Humus for Phenanthrene in Water

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