Phytoremediation of soil contaminated with weathered petroleum hydrocarbons by applying mineral fertilization, an anionic surfactant, or hydrocarbonoclastic bacteria

Morales-Guzmán, Gilberto; Ferrera‐Cerrato, Ronald; Rivera-Cruz, María del Carmen; Torres-Bustillos, Luis G.; Mendoza-López, Ma. Remedios; Esquivel-Cote, Rosalba; Alarcón, Alejandro

doi:10.1080/15226514.2022.2083577

Cited by 2 publications

(1 citation statement)

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“…Therefore, even if soil microorganisms have the genetic ability to degrade contaminants, the low microbial availability of the aged fraction causes its persistency in the soil [43,45]. Up to now, a limited number of herbaceous species have been tested for phytoremediation in the soils contaminated by aged PHCs [14,[46][47][48][49]. A complementary approach to enhance the aged PHC degradation is biostimulation through the addition of carbon organic amendments, such as compost [50], sewage sludge [51], composted plant biomass [52] and rice straw [53].…”

Section: Introductionmentioning

confidence: 99%

Helichrysum microphyllum subsp. tyrrhenicum, Its Root-Associated Microorganisms, and Wood Chips Represent an Integrated Green Technology for the Remediation of Petroleum Hydrocarbon-Contaminated Soils

et al. 2023

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Phytoremediation and the use of suitable amendments are well-known technologies for the mitigation of petroleum hydrocarbon (PHC) contaminations in terrestrial ecosystems. Our study is aimed at combining these two approaches to maximize their favorable effects. To this purpose, Helichrysum microphyllum subsp. tyrrhenicum, a Mediterranean shrub growing on sandy and semiarid soils, was selected. The weathered PHC-polluted matrix (3.3 ± 0.8 g kg−1 dry weight) from a disused industrial site was employed as the cultivation substrate with (WCAM) or without (UNAM) the addition and mixing of wood chips. Under the greenhouse conditions, the species showed a survival rate higher than 90% in the UNAM while the amendment administration restored the totality of the plant survival. At the end of the greenhouse test (nine months), the treatment with the wood chips significantly increased the moisture, dehydrogenase activity and abundance of the microbial populations of the PHC degraders in the substrate. Cogently, the residual amount of PHCs was significantly lower in the UNAM (3–92% of the initial quantity) than in the WCAM (3–14% of the initial quantity). Moreover, the crown diameter was significantly higher in the WCAM plants. Overall, the results establish the combined technology as a novel approach for landscaping and the bioremediation of sites chronically injured by PHC-weathered contaminations.

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Section: Introductionmentioning

confidence: 99%

Helichrysum microphyllum subsp. tyrrhenicum, Its Root-Associated Microorganisms, and Wood Chips Represent an Integrated Green Technology for the Remediation of Petroleum Hydrocarbon-Contaminated Soils

et al. 2023

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Phytoremediation of Petroleum Hydrocarbons: An Update of Its Recent Progress

Tang

2024

Trop. Environ. Biol. Technol.

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Phytoremediation continues to play an important role in the remediation of soils contaminated with hydrocarbons, as demonstrated by the ongoing influx of research articles in this field. A review of the recent literature reveals that studies on phytoremediation continue to assess the effectiveness of both existing and new plant species, particularly in treating contaminated soils. Fertilization and soil amendments are commonly incorporated into these studies. There is significant interest in microbial-assisted phytoremediation and the optimization of phytoremediation with surfactants and root exudates. Phytoremediation using plants alone often encounters limited efficiency (<65% petroleum hydrocarbon removal). However, fertilization, soil amendments, and additives like root exudates can boost efficiency to slightly above 80%, particularly with compost. Microbial-assisted phytoremediation could further increase efficiency to more than 90%, depending on the microorganisms used. Endomycorrhizal fungi and Acinetobacter sp. Tust-DM21 appear to have pronounced enhancing effects on petroleum hydrocarbon removal. Combining and optimizing good agricultural practices, fertilization, soil amendments, additives, and microbial-assisted phytoremediation could enhance overall efficiency while improving plant growth, even in saline or highly contaminated soils. Research on phytoremediation of water contaminated with petroleum hydrocarbons is significantly less prevalent. This review contributes to the identification of effective phytoremediation strategies and suggests that future research could focus on further exploring plant-microbe interactions to improve petroleum hydrocarbon removal. Artificial intelligence could also be incorporated to optimize factors that positively influence phytoremediation.

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Phytoremediation of soil contaminated with weathered petroleum hydrocarbons by applying mineral fertilization, an anionic surfactant, or hydrocarbonoclastic bacteria

Cited by 2 publications

References 76 publications

Helichrysum microphyllum subsp. tyrrhenicum, Its Root-Associated Microorganisms, and Wood Chips Represent an Integrated Green Technology for the Remediation of Petroleum Hydrocarbon-Contaminated Soils

Helichrysum microphyllum subsp. tyrrhenicum, Its Root-Associated Microorganisms, and Wood Chips Represent an Integrated Green Technology for the Remediation of Petroleum Hydrocarbon-Contaminated Soils

Phytoremediation of Petroleum Hydrocarbons: An Update of Its Recent Progress

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