Iron Oxide-Bearing Wastes as Media for Supporting Biodegradation of BTEX DOI Open Access
Safaa Abdalrasool Ali, Pallavee Srivastava, Gordon Webster

et al.

Minerals, Journal Year: 2024, Volume and Issue: 14(12), P. 1231 - 1231

Published: Dec. 3, 2024

Two common iron oxide-bearing wastes—a drinking water treatment residual and a passive mine sludge (MWTS)—were utilised with without modification as media in microcosm experiments to treat artificial benzene, toluene, ethylbenzene, xylene (BTEX)-contaminated wastewater. In all cases, the removal of BTEX was observed over 160-day experiments, benzene being most recalcitrant. The solubilisation observed, which, alongside syntropic relationship between methanogens firmicutes, allowed several anaerobic processes occur, including reduction concert biodegradation BTEX. Nitrogen sparging prior establishment, compared aeration, seen lead greater subsequent BTEX, indicating that conditions favoured removal. rates indicated these wastes, an abundant waste stream, may be interesting candidate for cost-effective remediation applications such permeable reactive barriers.

Language: Английский

Bioengineering for the Microbial Degradation of Petroleum Hydrocarbon Contaminants DOI Creative Commons
Minzhen Wang, Ming‐Zhu Ding, Ying‐Jin Yuan

et al.

Bioengineering, Journal Year: 2023, Volume and Issue: 10(3), P. 347 - 347

Published: March 10, 2023

Petroleum hydrocarbons are relatively recalcitrant compounds, and as contaminants, they one of the most serious environmental problems. n-Alkanes important constituents petroleum hydrocarbons. Advances in synthetic biology metabolic engineering strategies have made n-alkane biodegradation more designable maneuverable for solving pollution In microbial degradation n-alkanes, pathways, related genes, microbes, alkane hydroxylases been discovered, which provide a theoretical basis further construction degrading strains communities. this review, current advances n-alkanes under aerobic condition summarized four aspects, including pathways hydroxylases, engineered chassis, community. Especially, communities “Alkane-degrader Alkane-degrader” Helper” new ideas Surfactant producers nitrogen providers “Helper” discussed depth. This review will be helpful to achieve bioremediation oil-polluted environments rapidly.

Language: Английский

Citations

28
Metagenomic Insights into the Abundance of Iron-Reducing Microorganisms in a Petroleum-Contaminated Iron-Rich Aquifer DOI Creative Commons

H. J. Di,

Min Zhang,

Ning Zhuo

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(2), P. 433 - 433

Published: Feb. 17, 2025

In petroleum-contaminated aquifers, iron (III) serves as an electron acceptor, enabling microbial degradation of organic matter. While previous studies have focused on reduction and matter under laboratory conditions, research iron-associated microorganisms in aquifers is limited. To explore the diversity distribution such natural settings, this study used metagenomic analysis iron-rich, aquifer. Sixteen groundwater samples from both pollution source background areas were collected for species annotation functional gene identification. Results show more than 7000 identified iron-reducing (IRMs), including several previously well-characterized (e.g., Geobacter luticola sulfurreducens). However, majority IRMs not found existing databases. Some them, Sulfurospirillum sp. Extensimonas perlucida, could be taxonomically classified at level, while most only annotated unclassified bacteria. contamination zone, these proliferated extensively, which led to hydrocarbon predominantly driven by This enhances our understanding hydrocarbon-degrading supports management sites.

Language: Английский

Citations

1
New perspectives on the anaerobic degradation of BTEX: Mechanisms, pathways, and intermediates DOI Creative Commons

Diego Alejandro Hernandez-Ospina,

Carlos S. Osorio‐González, Saba Miri

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 361, P. 142490 - 142490

Published: May 29, 2024

Aromatic hydrocarbons like benzene, toluene, xylene, and ethylbenzene (BTEX) can escape into the environment from oil gas operations manufacturing industries posing significant health risks to humans wildlife. Unlike conventional clean-up methods used, biological approaches such as bioremediation provide a more energy labour-efficient environmentally friendly option for sensitive areas nature reserves cities, protecting biodiversity public health. BTEX contamination is often concentrated in subsurface of these locations where oxygen rapidly depleted, biodegradation relies on anaerobic processes. Thus, it critical understand characteristics has not been explored major extent. This review presents novel insights degradation mechanisms under conditions detailed description interconnection between them. follow four activation mechanisms: hydroxylation, carboxylation, methylation, fumarate addition. Hydroxylation one that explains transformation benzene phenol, toluene benzyl alcohol or p-cresol, 1-phenylethanol. Carboxylation benzoate thought be primary mechanism benzene. Despite being poorly understood, methylation also reported. Moreover, addition most widely reported mechanism, present ethylbenzene, xylene degradation. Further research efforts are required better elucidate new current alternative catabolic pathways. Likewise, comprehensive analysis enzymes involved well development advance tools omic reveal bottlenecks steps create effective on-site strategies address pollution.

Language: Английский

Citations

9
Abiotic and biotic transformation of petroleum hydrocarbons coupled with redox cycling of structural iron in clay mineral DOI
Yuan Liu, Hongyu Chen, Yizhi Sheng

et al.

Geochimica et Cosmochimica Acta, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

1
Transitioning weathered oil fields towards new energy: A review on utilizing hydrogenotrophic methanogens for petroleum hydrocarbons remediation DOI

Jiaping Zhou,

Wei-Han Lin,

Yingliang Yu

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135279 - 135279

Published: July 20, 2024

Language: Английский

Citations

3
Implications of iron minerals in terrestrial anaerobic microbial redox processes for greenhouse and toxic gas emissions, and contaminant dynamics DOI Creative Commons
Iram Afzal, Julia M. Foght, Ania C. Ulrich

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Feb. 2, 2025

Global concerns about increasing emissions of greenhouse gases (GHG), particularly methane (CH4) and nitrous oxide (N2O), toxic hydrogen sulfide (H2S) gas from terrestrial aquatic ecosystems warrant a comprehensive understanding anaerobic microbial redox processes that contribute to these atmospheric emissions. Iron minerals are widely distributed in natural environments mediate many metabolic drive C, N, S biogeochemical cycles, create resilience the ecosystem against climate other environmental changes. In this review, scientific information recent research is gleaned provide updated pathways reveal how Fe minerals, with their different properties speciation, influence (iron-, nitrate- sulfate-reducing, methanogenic conditions). These have profound positive negative implications for GHG H2S also play vital role contaminant transformation. This review provides insights into mineral-microbe interactions importance physicochemical defining interactions. Comprehensive knowledge will help devise strategies mitigate biodegrade organic contaminants engineered environments.

Language: Английский

Citations

0
Electrochemical oxidation of polycyclic aromatic hydrocarbons in soil co-contaminated with arsenic DOI Creative Commons

Kim Johansson,

Azariel Ruiz-Valencia, Ivan Carabante

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 388, P. 125978 - 125978

Published: May 29, 2025

Language: Английский

Citations

0
Prospects for Combined Applications of Nanostructured Catalysts and Biocatalysts for Elimination of Hydrocarbon Pollutants DOI Creative Commons
Olga Maslova,

Olga Senko,

М. А. Гладченко

et al.

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(9), P. 5815 - 5815

Published: May 8, 2023

Due to the presence of environmental problems, it is urgent improve processes aimed at processing and purification hydrocarbon-containing wastes wastewaters. The review presents latest achievements in development nanostructured catalysts made from different materials that can be used purify oil-polluted wastewaters (petroleum refinery wastewater, oilfield-produced water, sulfur-containing extracts pre-oxidized crude oil fractions, etc.) eliminate components hydrocarbon pollutants (polyaromatic hydrocarbons, phenols, etc.). results analysis possible combinations chemical biological for deeper more effective solutions problems are discussed. possibilities highly efficient elimination as a result hybrid application nanoparticles (graphene oxide, mesoporous silica, magnetic nanocatalysts, or catalytic nanocomposites advanced oxidation biocatalysts (enzymes, cells bacteria, mycelial fungi, phototrophic microorganisms natural artificial microbial consortia) analyzed.

Language: Английский

Citations

6
Microbial Communities in Model Seawater-Compensated Fuel Ballast Tanks: Biodegradation and Biocorrosion Stimulated by Marine Sediments DOI Creative Commons
Kathleen E. Duncan, Lina Edith Dominici, Mark A. Nanny‎

et al.

Corrosion and Materials Degradation, Journal Year: 2024, Volume and Issue: 5(1), P. 1 - 26

Published: Jan. 3, 2024

Some naval vessels add seawater to carbon steel fuel ballast tanks maintain stability during consumption. Marine sediments often contaminate tank fluids and have been implicated in stimulating biodegradation enhancing biocorrosion. The impact of the marine sediment was evaluated model reactors containing seawater, (petroleum-F76, Fischer–Tropsch F76, or a 1:1 mixture), coupons. Control did not receive fuel. added after 400 days incubated for another year. Sediment addition produced higher estimated bacterial numbers enhanced sulfate reduction. Ferrous sulfides were detected on all coupons, but pitting corrosion only identified coupons exposed FT-F76. Aerobic hydrocarbon-degrading bacteria increased, level dissolved iron decreased, consistent with stimulation aerobic hydrocarbon degradation by iron. We propose that provide an inoculum microbes are stimulated released corrosion. Hydrocarbon provides intermediates use sulfate-reducing reduces components inhibitory anaerobic bacteria. synergistic effect corrosion, biodegradable fuels, iron-stimulated is poorly recognized potentially significant biocorrosion mechanism.

Language: Английский

Citations

2
Quantifying the characteristics of magnetic oil–water contacts in mature hydrocarbon reservoirs and their capacity for understanding hydrocarbon remigration DOI Creative Commons
Jack N. Turney, Adrian R. Muxworthy, M. Sims

et al.

Geophysical Journal International, Journal Year: 2024, Volume and Issue: 237(1), P. 570 - 587

Published: Feb. 2, 2024

SUMMARY Increasing magnetization within mature hydrocarbon reservoirs provides a new technique in identifying oil–water contacts (OWCs) cored wells with the potential to assess yield thereby reducing need for further exploration. Authigenic precipitation of magnetic minerals at OWCs may also help locate palaeocontacts (PCs), where structural changes petroleum system have caused remigration. This study determines characteristics enhancements and possibly PCs silliclastic carbonate Wytch Farm oil field, Wessex Basin, UK. Increases saturation susceptibility are observed OWC 11 12 analysed owing increased presence magnetite vivianite. Geochemical analysis shallow suggest biogenic inorganic mineral is extensive depending on iron, sulphur phosphorus availability. Similar been above numerous which represent before basin-wide easterly tilt remigration Cenozoic. Multiple westerly onshore wells, this occurred as phases.

Language: Английский

Citations

2