Development of Sorbent Materials based on Polymer Waste and their Compounds with Nanomaterials for Oil Spill Remediation

2020 ◽  
Vol 14 (3) ◽  
pp. 225-238
Author(s):  
Cynthia E.I. Torres ◽  
Thelma S. Quezada ◽  
Israel López ◽  
Idalia G. de la Fuente ◽  
Francisco E.L. Rodríguez ◽  
...  

Aims: The purpose of this work was to obtain a hydrophobic sorbent material with potential applications in oil spill remediation. Background: The accidents due to oil spills cause long-term ecological damage, especially in the aquatic environment. The cleaning of oil spills can be carried out by many methods and techniques, being absorbents the most attractive due to the possibility of recovery and complete elimination of the hydrocarbons in situ from the water surface. In recent years, interest in polymeric materials for oil spill remediation has increased due to its low cost, high stability, and recyclability. Objective: The objective of this work was the development of sorbent materials based on polymer wastes, such as Polyethylene Terephthalate (PET), obtained from recycled bottles, and recycled Polyurethane (PU), for its application in the recovery of oil spills. Methods: Sorbent materials were prepared from polymer wastes, using salt molds for the formation of porous materials with a composition of PU of 5, 10 and 15%, which were subsequently hydrophobized using carbon nanotubes or silica nanoparticles by dip-coating technique. Results and Discussion: The obtained hydrophobic sorbent materials were characterized by Scanning Electron Microscopy (SEM) and Infrared Spectroscopy (FTIR). The resulting absorbent has shown capacity to separate oil from water; the best result was obtained by the sponge of PET-PU (10% PU) hydrophobized with a suspension with low multi-wall carbon nanotubes (MWCNTs) concentration, obtaining an absorption capacity of 2.01 g/g. Conclusion: Besides the standard sorption capacity, these cheap sorbent materials had interesting properties like low density, high hydrophobicity and buoyancy, which could be applied in other applications related to solving oil spills.

2017 ◽  
Vol 2017 (1) ◽  
pp. 2017-076
Author(s):  
Changwoo Nam ◽  
Houxiang Li ◽  
T.C. Mike Chung

ABSTRACT 2017-076 In this paper, we discuss a new class of i-PetroGel oil-superabsorbent technology that has shown a potential solution to the oil spill recovery and cleanup in arctic environments, based on the laboratory tests at Penn State and an open tank test at Ohmsett. This i-PetroGel material is formed by polyolefin polymers that are petroleum downstream products with similar oleophilic and hydrophobic properties of oil molecules. Apart from many oil sorbents based on adsorption, i-PetroGel absorbs oil by absorption (similar to Hydrogel absorbing aqueous solutions) and swells to a large volume. During Ohmsett testing, i-PetroGel flakes spread on top of the affected area showed effective transformation of Alaska North Slope (ANS) oil into a floating gel on the seawater surface, which was effectively recovered by an oleophilic drum skimmer and pumped to a storage tank. The recovered ANS oil-swelled adducts, containing <0.1 wt% water, exhibit similar distillation characteristics as the original ANS oil. Overall, this i-PetroGel technology could potentially provide a comprehensive solution for combating oil spills, with the goal to dramatically reduce the environmental impacts from oil spills and help recover one of the most precious natural resources. i-PetroGel exhibits a combination of desirable properties. ✓ High oil absorption capacity about 35–40 times by weight at 3 and 25 °C. ✓ Suitable to a broad range of hydrocarbons, including complex crude oils, refined oil products (gasolines, diesels, heating oils, etc.), and solvents (toluene, benzene, etc.). ✓ Fast kinetics in capturing the spilled oil. ✓ No detectable water absorption in i-PetroGel. ✓ The resulting oil/i-PetroGel adducts floating on water surface are recovered by skimmer. ✓ The recovered oil/i-Petrogel adducts can be refined as crude oil through standard refining processes. ✓ Cost effective. ✓ No secondary pollution.


2017 ◽  
Vol 135 (14) ◽  
pp. 46067 ◽  
Author(s):  
Elpida Piperopoulos ◽  
Luigi Calabrese ◽  
Emanuela Mastronardo ◽  
Edoardo Proverbio ◽  
Candida Milone

2005 ◽  
Vol 2005 (1) ◽  
pp. 837-840 ◽  
Author(s):  
Victoria A. Broje ◽  
Arturo A. Keller

ABSTRACT A significant amount of effort is being devoted by scientists and industry in order to increase the efficiency of oil spill recovery equipment as it determines the impact of oil spills on coastal ecosystems as well as the time and cost of cleanup operations. One way to increase the efficiency of adhesion skimmers is to replace traditional recovery materials with polymeric materials that have the highest affinity for oil. The research conducted at the University of California Santa Barbara has shown that modern scientific equipment such as a Dynamic Contact Angle Analyzer can be used for evaluation of candidate materials and selection of materials that can be most efficiently used for oil spill cleanup. The study found that the contact angle formed between oil and test surface can be used to characterize the affinity of material to oil. The contact angle correlates well with the mass of recovered oil. For a given oil, the lower the contact angle the higher the recovered mass. The study also showed that surface roughness and oil composition have a significant effect on the results of the adhesion tests. Higher roughness results in lower contact angle and larger recovered mass, for the same oil-polymer pair.


2018 ◽  
Vol 1 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Agnieszka Ubowska ◽  
Katarzyna Jowtuch

Abstract The presence of flammable substances nearby hot surfaces in the engine rooms pose a fire hazard. Therefore the quick and effective removal of oil spills from these areas is of utmost importance. The simplest way is to use sorbent materials having the capacity to absorb oil substances. Oil sorbents comprise of a wide range of organic, inorganic and synthetic products. The choice of form and type of sorbent material depends on the intended application: type of spill, its size and location. The article describes the results of studies aimed to compare the absorbency of selected natural and synthetic sorbents in the context of their application in case of an oil spill in the engine room. Although the natural sorbents should not be used in water, because they absorb it and can in addition contaminate the seabed, they can be used to remove oil spills on the ship. After used they can be disposed on the ship by burning.


Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3089
Author(s):  
Palraj Ranganathan ◽  
Chin-Wen Chen ◽  
Syang-Peng Rwei

Renewable polymers with self-healing ability, excellent elongation, hydrophobicity, and selective oil absorption attributes are of interest for an extensive range of applications, such as e-skin, soft robots, wearable devices, and cleaning up oil spills. Herein, two fully renewable eco-friendly polyamide (PA)-based self-healing elastomers (namely, PA36,IA, and PA36,36) were prepared by a facile and green one-pot melt polycondensation of itaconic acid (IA), PripolTM 1009, and PriamineTM 1075 monomers. The molecular structures of these PAs were analyzed by FITR, 1H NMR, and 13C NMR. The distinct structure of these PAs shows superior strain values (above 2300%) and high ambient temperature autonomous self-healing ability. Interestingly, the synthesized renewable PA36,36 showed zero water absorption values and hydrophobic properties with a contact angle of θ = 91o compared to the synthesized PA36,IA and other previously reported PAs. These excellent attributes are due to the low concentration of amide groups, the highly entangled main chains, the intermolecular diffusion, the manifold dangling chains, and the numerous reversible physical bonds within the renewable PAs. Furthermore, the hydrophobic properties may aid in the selective oil absorption of the PA36,36-based foam, for which PA36,36 foam is produced by the green supercritical carbon dioxide (scCO2) batch foaming process. The PA36,36 foam with a microporous cellular structure showed better absorption capacity and high stability in repeated use. Due to these advantages, these bio-based PAs have potential for the production of eco-friendly self-healing materials, superabsorbent foams, and other polymeric materials.


BioResources ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 8394-8416
Author(s):  
Jen Yen Tan ◽  
Siew Yan Low ◽  
Zhen Hong Ban ◽  
Parthiban Siwayanan

Thousands of oil spill incidents regrettably have occurred on a daily basis around the globe. Oil spills are a form of pollution that poses major catastrophic threats to marine ecosystems. Oil spill incidents commonly occur in the middle of the ocean, and the process to remove the oil becomes a great challenge. Absorbents, due to their good oil-absorbing characteristics, are becoming more popular nowadays as one of the effective oil spill clean-up methods. Among the many types of oil absorbents, plant fibers were also being studied to remove the oil spills from the sea surface. This paper reviews factors leading to oil spills, the detrimental effect of the oil spill on the environment, the oil spill removal methods, and the application of plant fibers as oil absorbent material. The paper also will highlight the latest development on the utilization of kenaf core fibers as oil-absorbent material and the use of oil absorbed kenaf core fibers as fuel briquette by taking advantage the high calorific value of the oil spill.


2017 ◽  
Vol 19 (2) ◽  
pp. 127 ◽  
Author(s):  
Fail Sultanov ◽  
B. Bakbolat ◽  
Zulkhair Mansurov ◽  
Shin-Shem Pei ◽  
Rabi Ebrahim ◽  
...  

Rapid progress of processing and transportation of oil and petroleum products may cause disaster for environment like oil spill. Oil booms, combustion, and oil skimmer vessels are usually used to clean up the oil spill, but often with poor efficiency and even with undesirable environmental side effects. With obtaining of carbon nanomaterials (CNMs) (graphene, carbon nanotubes) and developing inexpensive technologies for their synthesis it has become perspective to use them for creation of 3D structures which may serve as a hydrophobic sorbents for oil and petroleum products. In this study, sponges coated with carbon nanomaterials were obtained using “dip-coating” method. Walls of commercially available polyurethane (PU) and melamine sponges were coated with reduced graphene oxide (rGO) and multiwalled carbon nanotubes (MWCNTs). The resulting sponges are characterized by excellent mechanical properties, they are superhydprophobic, and they fully repel water and at the same time selectively absorb oil and organic liquids of different densities. We believe that superhydrophobic and superoleophilic sponges, the walls of which are coated with CNMs, are perspective candidates for reusable sorbents for collection of oil and petroleum products from the surface of water and moreover due to its excellent mechanical properties they can serve as a hydrophobic filtering materials for separation of oil from the surface of water.


BioResources ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 8394-8416
Author(s):  
Jen Yen Tan ◽  
Siew Yan Low ◽  
Zhen Hong Ban ◽  
Parthiban Siwayanan

Thousands of oil spill incidents regrettably have occurred on a daily basis around the globe. Oil spills are a form of pollution that poses major catastrophic threats to marine ecosystems. Oil spill incidents commonly occur in the middle of the ocean, and the process to remove the oil becomes a great challenge. Absorbents, due to their good oil-absorbing characteristics, are becoming more popular nowadays as one of the effective oil spill clean-up methods. Among the many types of oil absorbents, plant fibers were also being studied to remove the oil spills from the sea surface. This paper reviews factors leading to oil spills, the detrimental effect of the oil spill on the environment, the oil spill removal methods, and the application of plant fibers as oil absorbent material. The paper also will highlight the latest development on the utilization of kenaf core fibers as oil-absorbent material and the use of oil absorbed kenaf core fibers as fuel briquette by taking advantage the high calorific value of the oil spill.


Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2468
Author(s):  
Gayathiri Verasoundarapandian ◽  
Nur Nadhirah Zakaria ◽  
Noor Azmi Shaharuddin ◽  
Khalilah Abdul Khalil ◽  
Nurul Aini Puasa ◽  
...  

Oil spill incidents are hazardous and have prolonged damage to the marine environment. Management and spill clean-up procedures are practical and rapid, with several shortcomings. Coco peat (CP) and coco fibre (CF) are refined from coconut waste, and their abundance makes them desirable for diesel spillage treatment. Using a filter-based system, the selectivity of coco peat sorbent was tested using CP, CF and peat-fibre mix (CPM). CP exhibited maximal diesel sorption capacity with minimal seawater uptake, thus being selected for further optimisation analysis. The heat treatment considerably improved the sorption capacity and efficiency of diesel absorbed by CP, as supported by FTIR and VPSEM–EDX analysis. Conventional one-factor-at-a-time (OFAT) examined the performance of diesel sorption by CP under varying parameters, namely temperature, time of heating, packing density and diesel concentration. The significant factors were statistically evaluated using response surface methodology (RSM) via Plackett–Burman design (PB) and central composite design (CCD). Three significant (p < 0.05) factors (time, packing density and diesel concentration) were identified by PB and further analysed for interactions among the parameters. CCD predicted efficiency of diesel absorbed at 59.92% (71.90 mL) (initial diesel concentration of 30% v/v) and the experimental model validated the design with 59.17% (71.00 mL) diesel sorbed at the optimised conditions of 14.1 min of heating (200 °C) with packing density of 0.08 g/cm3 and 30% (v/v) of diesel concentration. The performance of CP in RSM (59.17%) was better than that in OFAT (58.33%). The discoveries imply that natural sorbent materials such as CP in oil spill clean-up operations can be advantageous and environmentally feasible. This study also demonstrated the diesel-filter system as a pilot study for the prospective up-scale application of oil spills.


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