Interactive effects of dual short-chain n-alkanes on removal performances and microbial responses of biotrickling filters

Wu, Xin; Lin, Yan; Wang, Yong-Yi; Yang, Chunping

doi:10.1016/j.cej.2023.141747

Cited by 17 publications

(2 citation statements)

References 40 publications

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“…Similarly, Hassan and Sorial (2010) and Hu and Wang (2015) observed a decrease in hexane biofiltration performance when benzene was present in the polluted air. A similar antagonistic interaction was reported by Wu et al (2023b) when the addition of propane and n-hexane decreased the removal of methane in a bioreactor. On the contrary, the addition of methane and propane promoted the removal of n-hexane.…”

Section: Reduction Of Inlet Voc Concentrationssupporting

confidence: 78%

Indoor Air Vocs Biofiltration by Bioactive Coating Packed Bed Bioreactors

González-Martín

Cantera

Muñoz

et al. 2023

Preprint

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Section: Reduction Of Inlet Voc Concentrationssupporting

confidence: 78%

Indoor Air Vocs Biofiltration by Bioactive Coating Packed Bed Bioreactors

González-Martín

Cantera

Muñoz

et al. 2023

Preprint

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“…Bioremediation emerges as an attractive and environmentally friendly alternative to traditional chemical and physical remediation methods, ensuring minimal disruption to the environment (Azubuike et al 2016 ). This approach combines the natural capabilities of microorganisms to degrade pollutants into less harmful forms, prioritizing economic efficiency (Wu et al 2023b ). Among these microorganisms, bacteria play a pivotal role due to their metabolic versatility, capability for rapid reproduction, and resilience in extreme environmental conditions (Mrozik and Piotrowska-Seget 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Characterization and identification of long-chain hydrocarbon-degrading bacterial communities in long-term chronically polluted soil in Ogoniland: an integrated approach using culture-dependent and independent methods

Okoye,

Selvarajan,

Chikere

et al. 2024

Environ Sci Pollut Res

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Escalating oil consumption has resulted in an increase in accidental spills of petroleum hydrocarbons, causing severe environmental degradation, notably in vulnerable regions like the Niger Delta. Complex mixture of these hydrocarbons particularly long-chain alkanes presents unique challenges in restoration of polluted environment due to their chemical properties. This study aimed to investigate the long-chain hydrocarbon-degrading bacterial communities within long-term chronically polluted soil in Ogoniland, by utilizing both traditional cultivation methods and modern culture-independent techniques. Results revealed that surface-polluted soil (SPS) and subsurface soil (SPSS) exhibit significantly higher total organic carbon (TOC) ranging from 5.64 to 5.06% and total petroleum hydrocarbons (TPH) levels ranging from 36,775 ppm to 14,087 ppm, compared to unpolluted soil (UPS) with 1.97% TOC and 479 ppm TPH, respectively. Analysis of carbon chain lengths reveals the prevalence of longer-chain alkanes (C20-28) in the surface soil. Culture-dependent methods, utilizing crude oil enrichment (COE) and paraffin wax enrichment (PWE), yield 47 bacterial isolates subjected to a long-chain alkane degradation assay. Twelve bacterial strains demonstrate significant degradation abilities across all enriched media. Three bacterial members, namely Pseudomonas sp. (almA), Marinomonas sp. (almA), and Alteromonas (ladA), exhibit genes responsible for long-chain alkane degradation, demonstrating efficiency between 50 and 80%. Culture-independent analysis reveals that surface SPS samples exhibit greater species richness and diversity compared to subsurface SPSS samples. Proteobacteria dominates as the phylum in both soil sample types, ranging from 22.23 to 82.61%, with Firmicutes (0.2–2.22%), Actinobacteria (0.4–3.02%), and Acidobacteria (0.1–3.53%) also prevalent. Bacterial profiles at genus level revealed that distinct variations among bacterial populations between SPS and SPSS samples comprising number of hydrocarbon degraders and the functional predictions also highlight the presence of potential catabolic genes (nahAa, adh2, and cpnA) in the polluted soil. However, culture-dependent analysis only captured a few of the dominant members found in culture-independent analysis, implying that more specialized media or environments are needed to isolate more bacterial members. The findings from this study contribute valuable information to ecological and biotechnological aspects, aiding in the development of more effective bioremediation applications for restoring oil-contaminated environments.

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Hydroxyl radicals in ozone-based advanced oxidation of organic contaminants: A review

Dai,

Niu,

et al. 2024

Environ Chem Lett

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Interactive effects of dual short-chain n-alkanes on removal performances and microbial responses of biotrickling filters

Cited by 17 publications

References 40 publications

Indoor Air Vocs Biofiltration by Bioactive Coating Packed Bed Bioreactors

Indoor Air Vocs Biofiltration by Bioactive Coating Packed Bed Bioreactors

Characterization and identification of long-chain hydrocarbon-degrading bacterial communities in long-term chronically polluted soil in Ogoniland: an integrated approach using culture-dependent and independent methods

Hydroxyl radicals in ozone-based advanced oxidation of organic contaminants: A review

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