A Novel Graphite-Based Sorbent for Oil Spill Cleanup

The performance of an innovative material based on expanded graphite, Grafysorber® G+ (Directa Plus), has been tested through laboratory, tank, and confinement tests for oil removal in case of an oil spill and water treatment. In addition to the ability to retain oil, the possibility of reusing this material after regeneration via squeezing was also evaluated. As a comparison, the same experimental tests were conducted using polypropylene flakes (PP), the material currently most used to deal with spill accidents. Oils with different chemical and physical properties were used, namely kerosene, diesel, and crude oil. From the laboratory tests, the capacity of Grafysorber® G+ to retain oil was found to be directly proportional to the viscosity of the latter, with adsorption values ranging from 76.8 g/g for diesel to 50.8 g/g for kerosene, confirming the potential of the innovative material compared to the PP. Cyclical use tests have confirmed certain reusability of the material, even if its adsorbent capacity decreases significantly after the first cycle and continues to decrease in subsequent cycles, but a less marked manner. Finally, some considerations based on the adsorption capacities were found to suggest that the adoption of the new material is also economically preferable, resulting in savings of 20 to 40% per kg of hydrocarbon treated.

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Enhanced Oil Spill Remediation by Adsorption with Interlinked Multilayered Graphene

Materials ◽

10.3390/ma12142231 ◽

2019 ◽

Vol 12 (14) ◽

pp. 2231 ◽

Cited By ~ 9

Author(s):

Vocciante ◽

Finocchi ◽

D′Auris ◽

Conte ◽

Tonziello ◽

...

Keyword(s):

Oil Spill ◽

Selective Adsorption ◽

3D Structure ◽

Expanded Graphite ◽

Experimental Tests ◽

Contaminated Site ◽

Promising Alternative ◽

New Material ◽

Innovative Material ◽

Oil Spill Remediation

The performances of an innovative material based on graphene multilayers in a 3D structure similar to expanded graphite, Grafysorber® G+ (Directa Plus), have been tested via in field applications on a real contaminated site. Several experimental tests were performed using Grafysorber® inside adsorbent devices (booms and pillows) to treat waters polluted by oil. The experimental campaign was carried out with the aim of comparing the performances of Grafysorber® with those of polypropylene (PP), which is the material used worldwide in case of water oil spill clean-up activities. The results achieved have confirmed a considerably higher selective adsorption capacity of Grafysorber® compared to PP, and configure the new material as a promising alternative to standard materials in enhancing oil spill remediation by selective adsorption.

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Oil-spill cleanup: The influence of acetylated curaua fibers on the oil-removal capability of magnetic composites

Journal of Applied Polymer Science ◽

10.1002/app.41732 ◽

2014 ◽

Vol 132 (13) ◽

pp. n/a-n/a ◽

Cited By ~ 22

Author(s):

Eldho Elias ◽

Raphael Costa ◽

Fernanda Marques ◽

Geiza Oliveira ◽

Qipeng Guo ◽

...

Keyword(s):

Oil Spill ◽

Oil Removal ◽

Magnetic Composites ◽

Curaua Fibers ◽

Oil Spill Cleanup

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Solar-assisted fast cleanup of heavy oil spills using a photothermal sponge

Journal of Materials Chemistry A ◽

10.1039/c8ta00779a ◽

2018 ◽

Vol 6 (19) ◽

pp. 9192-9199 ◽

Cited By ~ 43

Author(s):

Jian Chang ◽

Yusuf Shi ◽

Mengchun Wu ◽

Renyuan Li ◽

Le Shi ◽

...

Keyword(s):

Oil Spill ◽

Heavy Oil ◽

Oil Spills ◽

Oil Removal ◽

Viscous Oil ◽

Oil Spill Cleanup ◽

Highly Viscous Oil

Photothermal material-assisted solar-driven heavy oil removal is promising for highly viscous oil-spill cleanup.

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Safety and Health Issues Related to Oil Spill Cleanup

PsycEXTRA Dataset ◽

10.1037/e561002010-001 ◽

2010 ◽

Keyword(s):

Oil Spill ◽

Health Issues ◽

Safety And Health ◽

Oil Spill Cleanup

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The use of insoluble matter of Moroccan oil shale for removal of dyes from aqueous solution

10.31221/osf.io/x4v9p ◽

2019 ◽

Author(s):

Chem Int

Keyword(s):

Methylene Blue ◽

Oil Shale ◽

Heating Temperature ◽

Blue Dye ◽

Adsorption Capacities ◽

Experimental Parameters ◽

Initial Ph ◽

New Material ◽

Activating Agent ◽

Moderate Cost

The study aims to use an adsorbent natural based of Moroccan oil shale of Timahdit area (Y layer) in a physical-chemical adsorption process for treating industrial discharges colorful. The used adsorbent is the insoluble party of the sub-critical extraction of decarbonized oil shale of Timahdit. The tests performed on the methylene blue (MB), showed a strong elimination in the first 10 minutes. The influences of various experimental parameters were studied: mass ratio of adsorbent, time and temperature of thermal treatment, contact time, pH of MB and heating temperature of solution on the parameters of material were studied. The experimental results have shown that the adsorption of methylene blue dye by the adsorbent is more than 90% at initial pH a range 6-7 at room temperature for 30 minutes. The process is simple and the adsorbent produced is a new material with interesting adsorption capacities of moderate cost which does not require an activating agent and can be used as industrial adsorbent for the decontamination of effluents containing organic pollutants.

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Vibroacoustic Assessment of an Innovative Composite Material for the Roof of a Coupe Car

Applied Sciences ◽

10.3390/app11031128 ◽

2021 ◽

Vol 11 (3) ◽

pp. 1128

Author(s):

Nunziante Cascone ◽

Luca Caivano ◽

Giuseppe D’Errico ◽

Roberto Citarella

Keyword(s):

Composite Material ◽

Transfer Functions ◽

Realistic Model ◽

Point Of View ◽

Damping Capacity ◽

Geometry Structure ◽

Fiberglass Composite ◽

New Material ◽

Static Rigidity ◽

Innovative Material

The objective of this paper is the vibroacoustic evaluation of an innovative material for a sports car roof, aiming at replacing fiberglass composite materials. Such evaluation was carried out using numerical and experimental analysis techniques, with cross-comparison between the corresponding results. The innovative material under analysis is a composite material, with a thermoplastic polypropylene matrix and reinforcement made of cellulose fibers. In order to validate the virtual dynamic modeling of the new material, the inertance on different points of some sheets made of the material under analysis was evaluated by an in-house made experimental activity, performed in the CRF (Fiat Research Center) test room, and cross-compared with corresponding results from a numerical analysis performed with the MSC Nastran software. Then, a realistic model of the car roof of the Alfa Romeo 4C car, made with the new material, was implemented and analyzed from the vibroacoustic point of view. The mere switch to the new material, with no changes in the geometry/structure of the car roof, did not allow preserving the original values of static rigidity, dynamic rigidity, and configuration of modal shapes. For this reason, a geometric/structural optimization of the component was performed. Once the new geometry/structure was defined, a vibroacoustic analysis was carried out, checking for a possible coupling between the fluid cavity modes and the structure car body modes. Finally, the vibroacoustic transfer functions to the driver’s ear node were assessed, considering two different excitation points on the structure. The excellent damping capacity of the proposed material led to an improvement in the vibroacoustic transfer functions and to a reduction in the weight of the pavilion.

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