Assessment of the infiltration of water-in-oil emulsion into soil after spill incidents

Qu, Zhaonian; An, Chunjiang; Yue, Rengyu; Bi, Huifang; Zhao, Shan

doi:10.1016/j.scitotenv.2023.165325

Cited by 6 publications

(5 citation statements)

References 53 publications

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“…Here, considering the randomness of real ocean waves, four typical wave frequencies (0.5, 1.0, 1.5 and 2.0 Hz) were selected, where 2.0 Hz was set to simulate extreme sea conditions. Under those four wave situations, an analysis was conducted to assess the influence of different rotor types (60°, 30°) and varying numbers of electrode pairs (4,6,8) on the open-circuit voltage and short-circuit current of the SC-TENG.…”

Section: Optimization Of the Sc-tengmentioning

confidence: 99%

“…In recent years, there have been frequent oil spills at sea, causing serious damage to the marine environment [1,2]. In the case of an oil spill, it is of great significance to obtain the position, moving speed, and direction of the oil film in real time through the oil spill positioners to reduce the impact of oil spill accidents on the marine environment [3,4]. Currently, the oil spill positioners are primarily battery-powered.…”

Section: Introductionmentioning

confidence: 99%

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A wave energy driven high-performance self-powered oil spill positioner

Li,

Chen,

Zhang

et al. 2023

Nanotechnology

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The oil spill positioner is capable of real-time monitoring oil films on the sea surface. However, the lack of high-performance power supply methods greatly restricts the application of oil spill positioner. In this research, we design a high-performance self-powered oil spill positioner based on a soft-contact-triboelectric-nanogenerator (SC-TENG). This device achieves soft-contact by attaching rabbit fur to the rotor, which can effectively reduce frictional resistance, quickly transfer charge to the electrode, and improve the durability of the parts. First, we calculate the highest occupied molecular orbital and the lowest unoccupied molecular orbital of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) molecules through first-principles simulations, and compared the ease of electron excitation between the two materials. The results show that the performance of SC-TENG with PVDF as dielectric material is significantly better than that of PTFE. At the same time, this phenomenon has been confirmed by experiments. On the basis of experimental and simulate research on two types of power management circuits, a bridge rectifier circuit with the function of converting alternating current to direct current is selected to realize the self-power supply of the oil spill positioner. Additionally, by optimizing the structure of the SC-TENG and employing a bridge rectifier circuit, the SC-TENG can achieve a maximum open-circuit voltage of 1400 V and a short-circuit current of 3.49 μA, which are enough to light up 200 light-emitting diodes and power the oil spill positioner. Finally, we simulate the open-circuit voltage and short-circuit current of the SC-TENG on a six-degree-of-freedom platform and test its durability under real-world ocean wave conditions, all of which show excellent performance. This work develops an efficient wave energy conversion mechanism and successfully realizes the high-performance self-powering of the oil spill positioner, making oil spill monitoring more flexible and reliable.

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Section: Optimization Of the Sc-tengmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A wave energy driven high-performance self-powered oil spill positioner

Li,

Chen,

Zhang

et al. 2023

Nanotechnology

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“…The spillage of PDPs into water bodies represents a significant environmental challenge with serious potential ecological and socio-economic consequences [ 7 ]. As previously stated, such spills can occur due to a variety of causes, including accidents during transport and extraction, deliberate acts of vandalism, and/or industrial negligence to avoid cleanup fees [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Advancements in Detection and Mitigation Strategies for Petroleum-Derived Contaminants in Aquatic Environments: A Comprehensive Review

Duarte,

Aliaño-González,

Romano

et al. 2024

Sensors

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The exponential increase in the production and transportation of petroleum-derived products observed in recent years has been driven by the escalating demand for energy, textiles, plastic-based materials, and other goods derived from petroleum. Consequently, there has been a corresponding rise in spills of these petroleum derivatives, particularly in water sources utilized for transportation or, occasionally, illegally utilized for tank cleaning or industrial equipment maintenance. Numerous researchers have proposed highly effective techniques for detecting these products, aiming to facilitate their cleanup or containment and thereby minimize environmental pollution. However, many of these techniques rely on the identification of individual compounds, which presents significant drawbacks, including complexity of handling, subjectivity, lengthy analysis times, infeasibility for in situ analysis, and high costs. In response, there has been a notable surge in the utilization of sensors or generalized profiling techniques serving as sensors to generate characteristic fingerprints of these products, thereby circumventing the aforementioned disadvantages. This review comprehensively examines the evolution of techniques employed for detecting petroleum-derived products in water samples, along with their associated advantages and disadvantages. Furthermore, the review examines current perspectives on methods for the removal and/or containment of these products from water sources, to minimize their environmental impact and the associated health repercussions on living organisms and ecosystems.

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“…Groundwater contamination by petroleum hydrocarbons is a widely recognized and serious environmental risk, due to the widespread accidental release of petroleum hydrocarbons [1][2][3][4][5] and their carcinogenic and mutagenic effects on human health [6][7][8]. Such release accidents frequently occur in oilfields [9,10]. Petroleum is a complex mixture that contains thousands of different organic compounds with various physical-chemicalbiological features [11][12][13], which differentiate their fate and migration pathways and make in situ remediation complicated [14,15].…”

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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Assessment of the infiltration of water-in-oil emulsion into soil after spill incidents

Cited by 6 publications

References 53 publications

A wave energy driven high-performance self-powered oil spill positioner

A wave energy driven high-performance self-powered oil spill positioner

Advancements in Detection and Mitigation Strategies for Petroleum-Derived Contaminants in Aquatic Environments: A Comprehensive Review

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

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