Comparing the indigenous microorganism system in typical petroleum-contaminated groundwater

Wang, Jili; Zhang, Yuling; Ding, Yang; Song, Hewei; Liu, Ting; Zhang, Yi; Xu, Weiqing; Shi, Yujia

doi:10.1016/j.chemosphere.2022.137173

Cited by 9 publications

(2 citation statements)

References 88 publications

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“…Manganese is the production of manganese dioxide, which is a component of soil. Mn(II) occurs because of the metabolism by microbes [51]. Downstream of WPP, the average manganese concentrations increased (1.51 to 1.93 mg/L).…”

Section: Hydrogeochemistry and Biogeochemistrymentioning

confidence: 99%

Quantitative Assessment of Organic Mass Fluxes and Natural Attenuation Processes in a Petroleum-Contaminated Subsurface Environment

Xia,

Wang,

Yang

et al. 2023

Applied Sciences

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We perceived a trend in the study and practice of petroleum-contaminate sites. Monitored natural attenuation (MNA) can reduce the contaminant concentrations in the soil and groundwater, and it is a method that can remediate the petroleum-contaminated site effectively. MNA is becoming a research focus. This study evaluated MNA using a series of lab-based bench-scale experiments and a large amount of monitoring data from field samplings. Based on the in-site total petroleum hydrocarbon (TPH) results, we used statistical methods, the Mann-Kendall test, and mass fluxes in order to evaluate the MNA of petroleum-contaminated sites in groundwater. The results showed that the TPH concentrations were decreasing, and the plume became smaller. The attenuation rate was from 0.00876 mg/d to 0.10095 mg/d; remediating the petroleum contamination site would cost 1.3 years to 10.6 years. The plume reached a quasi-steady state, and mass flux declined. The most essential process of MNA was biodegradation, and the second was sorption. During the monitoring period, 393 g of TPH was attenuated, including 355 g of TPH gradated by microbes. Biodegradation upstream of the plume was more serious. Iron(Ⅲ) and manganese were the main electron acceptors utilized by microbes during the monitored period. MNA was in progress, and it can be an effective method to remediate the petroleum-contaminated site. Lab-based bench-scale experiments were performed with much monitoring data from the field samplings in order to understand the fate and transport mechanism of the petroleum contamination from the land surface to shallow groundwater according to site conditions.

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Section: Hydrogeochemistry and Biogeochemistrymentioning

confidence: 99%

Quantitative Assessment of Organic Mass Fluxes and Natural Attenuation Processes in a Petroleum-Contaminated Subsurface Environment

Xia,

Wang,

Yang

et al. 2023

Applied Sciences

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“…Dissolved oxygen (DO) concentrations provide estimates for the relative rate of hydrocarbon biodegradation and oxygen drawdown within the plume. Anaerobic respiration uses nitrate (NO 3 − ), sulfate (SO 4 2− ), metals such as iron (Fe 2+ ) and manganese (Mn 4+ ), or even CO 2 as accepting electrons [51].…”

Section: Introductionmentioning

confidence: 99%

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

Yang,

Yang

et al. 2024

Water

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A quantitative and qualitative assessment using molecular markers derived from compound-specific indices for indicating groundwater impacted by petroleum spills in an oil field was recently undertaken and demonstrated serious contamination, with both high total petroleum hydrocarbons (TPH) (3.68–7.32 mg/L) and hazardous compounds in the groundwater. A petroleum source was identified, and the analysis revealed a decreasing trend of fresh petroleum input, along with groundwater advection and an increasing trend of biodegradation potential at locations farther from the source. This was confirmed via microbial analysis with both biodegrading microorganisms and diversity indices (Shannon, Simpson, and Pielou) and the principal component analysis (PCA) modeling approach, which classified the field samples into three types according to the distribution correlations between different organic compounds. Biodegradation was believed to be the dominant sink of hydrocarbons due to the increasing Pr/C17 and Ph/C18 values with seasonal changes. Raised temperatures activated the microbial degradation process; specifically, low-weight hydrocarbons degraded more rapidly than high-weight hydrocarbons, resulting in the accumulation of an unresolved complex mixture of bioproducts at locations that were farther away. Spatially, the Pr/C17 and Ph/C18 values increased from the upstream to the downstream areas, showing substantial biodegradation. The relationships between the molecular markers and chemical indices were quantified via canonical correlation analysis (CCA) to visually explain the interactive reaction processes. It was also demonstrated that the biodegradation of petroleum organics can be characterized by the consumption of dissolved oxygen and a decreasing Pr/Ph ratio, due to system reduction. These results demonstrate that compound-specific molecular markers, coupled with biochemical parameters, can effectively support a better understanding and effective fingerprinting of the fate and transport of petroleum organic contaminants, thus offering valuable technical support for a cost-effective remediation strategy.

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Adaptive characteristics of indigenous microflora in an organically contaminated high salinity groundwater

Wang,

Zhang,

Ding

et al. 2024

Chemosphere

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Comparing the indigenous microorganism system in typical petroleum-contaminated groundwater

Cited by 9 publications

References 88 publications

Quantitative Assessment of Organic Mass Fluxes and Natural Attenuation Processes in a Petroleum-Contaminated Subsurface Environment

Quantitative Assessment of Organic Mass Fluxes and Natural Attenuation Processes in a Petroleum-Contaminated Subsurface Environment

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

Adaptive characteristics of indigenous microflora in an organically contaminated high salinity groundwater

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