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Van Poucke C, Verdegem E, Mangelinckx S, Stevens CV. Synthesis and unambiguous NMR characterization of linear and branched N-alkyl chitosan derivatives. Carbohydr Polym 2024; 337:122131. [PMID: 38710547 DOI: 10.1016/j.carbpol.2024.122131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/22/2024] [Accepted: 04/03/2024] [Indexed: 05/08/2024]
Abstract
Chitosan, sourced from abundant chitin-rich waste streams, emerges as a promising candidate in the realm of future functional materials and chemicals. While showing numerous advantageous properties, chitosan sometimes falls short of competing with today's non-renewable alternatives. Chemical derivatization, particularly through N-alkylation, proves promising in enhancing hydrophobic functionalities. This study synthesizes fifteen chitosan derivatives (degree of substitution = 2-10 %) using an improved reductive amination method. Next, selective depolymerization through acid hydrolysis reduced the chain rigidity imposed by the polymer backbone. This facilitated unambiguous structural characterization of the synthesized compounds using a combination of common NMR techniques. Two potential side reactions are identified for the first time, emphasizing the need for detailed structural information to unlock the true potential of these derivatives in future applications. HYPOTHESIS: The increase in chain mobility induced by the selective depolymerization of aliphatic N-alkyl chitosan derivatives allows for an unambiguous NMR characterization.
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Affiliation(s)
- Casper Van Poucke
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Evert Verdegem
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Christian V Stevens
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium.
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2
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Farooq U, Szczybelski A, Ferreira FC, Faria NT, Netzer R. A Novel Biosurfactant-Based Oil Spill Response Dispersant for Efficient Application under Temperate and Arctic Conditions. ACS OMEGA 2024; 9:9503-9515. [PMID: 38434809 PMCID: PMC10905727 DOI: 10.1021/acsomega.3c08429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/13/2024] [Accepted: 01/22/2024] [Indexed: 03/05/2024]
Abstract
Synthetic oil spill dispersants have become essential in offshore oil spill response strategies. However, their use raises significant concerns regarding toxicity to phyto- and zooplankton and other marine organisms, especially in isolated and vulnerable areas such as the Arctic and shorelines. Sustainable alternatives may be developed by replacing the major active components of commercial dispersants with their natural counterparts. During this study, interfacial properties of different types of glycolipid-based biosurfactants (rhamnolipids, mannosylerythritol lipids, and trehalose lipids) were explored in a crude oil-seawater system. The best-performing biosurfactant was further mixed with different nontoxic components of Corexit 9500A, and the interfacial properties of the most promising dispersant blend were further explored with various types of crude oils, weathered oil, bunker, and diesel fuel in natural seawater. Our findings indicate that the most efficient dispersant formulation was achieved when mannosylerythritol lipids (MELs) were mixed with Tween 80 (T). The MELs-T dispersant blend significantly reduced the interfacial tension (IFT) of various crude oils in seawater with results comparable to those obtained with Corexit 9500A. Importantly, no leaching or desorption of MELs-T components from the crude oil-water interface was observed. Furthermore, for weathered and more viscous asphaltenic bunker fuel oil, IFT results with the MELs-T dispersant blend surpassed those obtained with Corexit 9500A. This dispersant blend also demonstrated effectiveness at different dosages (dispersant-to-oil ratio (DOR)) and under various temperature conditions. The efficacy of the MELs-T dispersant was further confirmed by standard baffled flask tests (BFTs) and Mackay-Nadeau-Steelman (MNS) tests. Overall, our study provides promising data for the development of effective biobased dispersants, particularly in the context of petroleum exploitation in subsea resources and transportation in the Arctic.
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Affiliation(s)
- Umer Farooq
- Department
of Petroleum, SINTEF Industry, 7465 Trondheim, Norway
| | - Ariadna Szczybelski
- Norwegian
College of Fishery Science, The Arctic University
of Norway, 9037 Tromsø, Norway
| | - Frederico Castelo Ferreira
- Institute
for Bioengineering and Biosciences and Department of Bioengineering,
Instituto Superior Técnico, Universidade
de Lisboa, 1049-001 Lisbon, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, Instituto
Superior Técnico, Universidade de
Lisboa, 1049-001 Lisbon, Portugal
| | - Nuno Torres Faria
- Institute
for Bioengineering and Biosciences and Department of Bioengineering,
Instituto Superior Técnico, Universidade
de Lisboa, 1049-001 Lisbon, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, Instituto
Superior Técnico, Universidade de
Lisboa, 1049-001 Lisbon, Portugal
| | - Roman Netzer
- Department
of Aquaculture, SINTEF Ocean, 7465 Trondheim, Norway
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Abuhasheesh YH, Hegab HM, Wadi VS, Al Marzooqi F, Banat F, Aljundi IH, Hasan SW. Phase inverted hydrophobic polyethersulfone/iron oxide-oleylamine ultrafiltration membranes for efficient water-in-oil emulsion separation. CHEMOSPHERE 2023:139431. [PMID: 37422217 DOI: 10.1016/j.chemosphere.2023.139431] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/06/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
Exploration and transportation of oil offshore can result in oil spills that cause a wide range of adverse environmental consequences and destroy aquatic life. Membrane technology outperformed the conventional procedures for oil emulsion separation due to its improved performance, reduced cost, removal capacity, and greater eco-friendly. In this study, a hydrophobic iron oxide-oleylamine (Fe-Ol) nanohybrid was synthesized and incorporated into polyethersulfone (PES) to prepare novel PES/Fe-Ol hydrophobic ultrafiltration (UF) mixed matrix membranes (MMMs). Several characterization techniques were performed to characterize the synthesized nanohybrid and fabricated membranes, including scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), contact angle, and zeta potential. The membranes' performance was assessed using a surfactant-stabilized (SS) water-in-hexane emulsion as a feed and a dead-end vacuum filtration setup. The incorporation of the nanohybrid enhanced the hydrophobicity, porosity, and thermal stability of the composite membranes. At 1.5 wt% Fe-Ol nanohybrid, the modified PES/Fe-Ol MMM membranes reported high water rejection efficiency of 97.4% and 1020.4 LMH filtrate flux. The re-usability and antifouling properties of the membrane were examined over five filtration cycles, demonstrating its great potential for use in water-in-oil separation.
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Affiliation(s)
- Yazan H Abuhasheesh
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Hanaa M Hegab
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Vijay S Wadi
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Faisal Al Marzooqi
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Isam H Aljundi
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Saudi Arabia
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
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4
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Dib MA, Hucher N, Gore E, Grisel M. Original tools for xanthan hydrophobization in green media: Synthesis and characterization of surface activity. Carbohydr Polym 2022; 291:119548. [DOI: 10.1016/j.carbpol.2022.119548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/25/2022]
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Kinetics, isotherms and thermodynamics of oil spills removal by novel amphiphilic Chitosan-g-Octanal Schiff base polymer developed by click grafting technique. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04260-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractKinetic, isothermal and thermodynamic studies for the oil spills removal process have been conducted by Chitosan and novel amphiphilic Chitosan-g-Octanal Schiff base adsorbents developed by click chemistry and evaluated successfully in the removal of heavy crude oil spills. Chitosan was first prepared from wastes of marine shrimp shells, and then Chitosan and Chitosan-g-Octanal Schiff base adsorbents were synthesized and verified their structures, thermal stability and their morphological changes using FT-IR spectroscopy, TGA and SEM. The oil adsorption percentages (%) using heavy crude oil were 96.41% for the Chitosan-g-Octanal Schiff base adsorbent compared to 64.99% for native Chitosan counterpart. High rate of adsorption was observed where 40% of oil adsorbed within 15 min only using the Chitosan-g-Octanal Schiff base adsorbent compared to 90 min for native Chitosan adsorbent. The adsorption process followed the pseudo-second order model, and the equilibrium data were sufficiently fitted with the Langmuir model with a maximum adsorption capacity 30.30 g/g at 25 °C. Thermodynamic parameters computed from Van’t Hoff plot confirmed the process to be endothermic, favorable and spontaneous.
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6
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Zhao Y, Gu Y, Gao G. Piezoelectricity induced by pulsed hydraulic pressure enables in situ membrane demulsification and oil/water separation. WATER RESEARCH 2022; 215:118245. [PMID: 35290871 DOI: 10.1016/j.watres.2022.118245] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 05/25/2023]
Abstract
Recovering oil from oily wastewater is not only for economic gains but also for mitigating environmental pollution. However, demulsification of oil droplets stabilized with surfactants is challenging because of their low surface energy. Although the widely used oil/water separation membrane technologies based on size screening have attracted considerable attention in the past few decades, they are incapable of demulsification of stabilized oil emulsions and the membrane concentrates often require post-processing. Herein, the piezoelectric ceramic membrane (PCM), which can respond to the inherent transmembrane pressure in the pressure-driven membrane processes, was employed to transform hydraulic pressure pulses into electroactive responses to in situ demulsification. The pulsed transmembrane pressure on the PCM results in the generation of considerable rapid voltage oscillations over 3.2 V and a locally high electric field intensity of 7.2 × 107 V/m, which is capable of electrocoalescence with no additional stimuli or high voltage devices. Negative dielectrophoresis (DEP) force occurred in this membrane process and repelled the large size of oil after demulsification away from the PCM surface, ensuring continuous membrane demulsification and oil/water separation. Overall, PCM provides a further opportunity to develop an environmentally friendly and energy-saving electroresponsive membrane technology for practical applications in wastewater treatment.
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Affiliation(s)
- Yang Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yuna Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Guandao Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China.
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7
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Yu M, Zhu Z, Chen B, Cao Y, Zhang B. Bioherder Generated by Rhodococcus erythropolis as a Marine Oil Spill Treating Agent. Front Microbiol 2022; 13:860458. [PMID: 35572674 PMCID: PMC9100704 DOI: 10.3389/fmicb.2022.860458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
There is an urgent call for contingency planning with effective and eco-friendly oil spill cleanup responses. In situ burning, if properly applied, could greatly mitigate oil in water and minimize the adverse environmental impacts of the spilled oil. Chemical herders have been commonly used along with in situ burning to increase the thickness of spilled oil at sea and facilitate combustion. These chemical surfactant-based agents can be applied to the edges of the oil slick and increase its thickness by reducing the water–oil interfacial tension. Biosurfactants have recently been developed as the next generation of herds with a smaller environmental footprint. In this study, the biosurfactant produced by Rhodococcus erythropolis M25 was evaluated and demonstrated as an effective herding agent. The impact of environmental and operational factors (e.g., temperature, herder dose, spilled oil amount, water salinity, and operation location) on its performance was investigated. A five-factor fractional design was applied to examine the importance of these factors and their impact on herding effectiveness and efficiency. The results of this study showed that higher temperature and a higher dose of herder could result in an increased oil slick thickness changing rate. Differences in water salinity at the same temperature led to the same trend, that is, the herding process effectively goes up with increasing herder–oil ratio (HOR). Further large-scale testing needs to be conducted for evaluating the applicability of the developed bioherder in the field.
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8
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Owoseni O, Su Y, Raghavan S, Bose A, John VT. Hydrophobically modified chitosan biopolymer connects halloysite nanotubes at the oil-water interface as complementary pair for stabilizing oil droplets. J Colloid Interface Sci 2022; 620:135-143. [PMID: 35421750 DOI: 10.1016/j.jcis.2022.03.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/21/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
The integration of cationic and hydrophobic functionalities into hydrophobically modified chitosan (HMC) biopolymer facilitates complementary emulsion stabilization with negatively charged halloysite clay nanotubes (HNT). Oil-in-water emulsions with smaller droplet sizes and significantly improved interfacial resistance to droplet coalescence are obtained on complementary emulsion stabilization by HNT and HMC compared to the individual emulsifiers alone. Contact angle measurements shows that the adsorption of the cationic HMC onto the negatively charged HNT modifies the surface wettability of the nanotubes, facilitating the attachment of the nanotubes to the oil-water interface. High resolution cryo-SEM imaging reveals that free HMC chains locks the nanotubes together at the oil-water interface, creating a high barrier to droplet coalescence. The emulsion stability is an order of magnitude higher for conditions in which the aqueous HNT dispersion is stabilized by the HMC compared to conditions where the negatively charged HNT is strongly flocculated by the cationic HMC. The hydrophobic interaction between HMC chains, insertion of HMC hydrophobes into the oil phase and electrostatic interactions between HMC and HNT are proposed as key mechanisms driving the increased emulsion stability. For potential application as a dispersant system for crude oil spill treatment, the nanotubular morphology of HNT was further exploited for the encapsulation of the water-insoluble surfactant, sorbitan monooleate (Span 80). The HMC and HNT sterically strengthens the oil-water interfacial layer while release of the Span 80 surfactant from the HNT lumen lowers the oil-water interfacial tension. The concepts advanced here are relevant in the development of environmentally-benign dispersants for oil spill remediation.
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Affiliation(s)
- Olasehinde Owoseni
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States
| | - Yang Su
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States
| | - Srinivasa Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
| | - Arijit Bose
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, United States
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, United States.
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9
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Haridharan N, Sundar D, Kurrupasamy L, Anandan S, Liu C, Wu JJ. Oil spills adsorption and cleanup by polymeric materials: A review. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5636] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Neelamegan Haridharan
- Department of Environmental Engineering and Science Feng Chia University Taichung Taiwan
- Department of Chemistry Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology Avadi Tamilnadu India
| | - Dhivyasundar Sundar
- Department of Environmental Engineering and Science Feng Chia University Taichung Taiwan
| | - Lakshmanan Kurrupasamy
- Department of Environmental Engineering and Science Feng Chia University Taichung Taiwan
| | - Sambandam Anandan
- Department of Chemistry National Institute of Technology Trichy India
| | - Chen‐Hua Liu
- Department of Environmental Engineering and Science Feng Chia University Taichung Taiwan
| | - Jerry J. Wu
- Department of Environmental Engineering and Science Feng Chia University Taichung Taiwan
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10
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Zulkefli NF, Alias NH, Jamaluddin NS, Abdullah N, Abdul Manaf SF, Othman NH, Marpani F, Mat-Shayuti MS, Kusworo TD. Recent Mitigation Strategies on Membrane Fouling for Oily Wastewater Treatment. MEMBRANES 2021; 12:26. [PMID: 35054552 PMCID: PMC8780462 DOI: 10.3390/membranes12010026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 11/30/2022]
Abstract
The discharge of massive amounts of oily wastewater has become one of the major concerns among the scientific community. Membrane filtration has been one of the most used methods of treating oily wastewater due to its stability, convenience handling, and durability. However, the continuous occurrence of membrane fouling aggravates the membrane's performance efficiency. Membrane fouling can be defined as the accumulation of various materials in the pores or surface of the membrane that affect the permeate's quantity and quality. Many aspects of fouling have been reviewed, but recent methods for fouling reduction in oily wastewater have not been explored and discussed sufficiently. This review highlights the mitigation strategies to reduce membrane fouling from oily wastewater. We first review the membrane technology principle for oily wastewater treatment, followed by a discussion on different fouling mechanisms of inorganic fouling, organic fouling, biological fouling, and colloidal fouling for better understanding and prevention of membrane fouling. Recent mitigation strategies to reduce fouling caused by oily wastewater treatment are also discussed.
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Affiliation(s)
- Nur Fatihah Zulkefli
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Nur Hashimah Alias
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Nur Shafiqah Jamaluddin
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Norfadhilatuladha Abdullah
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia;
| | - Shareena Fairuz Abdul Manaf
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Nur Hidayati Othman
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Fauziah Marpani
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Muhammad Shafiq Mat-Shayuti
- Department of Oil and Gas Engineering, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.F.Z.); (N.S.J.); (S.F.A.M.); (N.H.O.); (F.M.); (M.S.M.-S.)
| | - Tutuk Djoko Kusworo
- Department of Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang 50275, Indonesia;
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11
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Tamer TM, Eweida BY, Omer AM, Soliman HM, Ali SM, Zaatot AA, Mohy-Eldin MS. Removal of oil spills by novel amphiphilic Chitosan-g-Octanal Schiff base polymer developed by click grafting technique. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Zhao X, He F, Yu G, Feng Y, Li J. High-viscosity Pickering emulsion stabilized by amphiphilic alginate/SiO 2 via multiscale methodology for crude oil-spill remediation. Carbohydr Polym 2021; 273:118492. [PMID: 34560936 DOI: 10.1016/j.carbpol.2021.118492] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/04/2021] [Accepted: 07/25/2021] [Indexed: 01/21/2023]
Abstract
The separation of crude oil from oily water and collection of the emulsion constituents has attracted significant attention. We demonstrate that the relationships between inherent dynamic factors and the performance of a Pickering emulsion stabilized by SiO2 particles with adsorbed hydrophobically modified sodium alginate derivatives (HMSA), a natural pH-sensitive polysaccharide, can be clarified via a multi-scale methodology. Functionalization of the silica surface with HMSA controls particle dispersibility, as verified by turbidity and stability analyses, the zeta potential, and transmission electron microscopy measurements. The interaction mechanism between HMSA and SiO2 nanoparticles was elucidated by both experimental adsorption measurements and computer simulations, which showed qualitative consistency. The aggregation/disaggregation of HMSA/SiO2 particles achieved by tuning the pH of the solution facilitated reversible dispersibility/collectability behavior. Overall, a high-viscosity Pickering emulsion system based on particle-particle and droplet-droplet interactions, which can be filtered for the recovery of spilled crude oil, was demonstrated.
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Affiliation(s)
- Xinyu Zhao
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, 58 Renmin Road, Haikou, Hainan 570228, China
| | - Furui He
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, 58 Renmin Road, Haikou, Hainan 570228, China
| | - Gaobo Yu
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, 58 Renmin Road, Haikou, Hainan 570228, China.
| | - Yuhong Feng
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, 58 Renmin Road, Haikou, Hainan 570228, China.
| | - Jiacheng Li
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, 58 Renmin Road, Haikou, Hainan 570228, China.
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13
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Altman RM, Christoffersen EL, Jones KK, Krause VM, Richmond GL. Playing Favorites: Preferential Adsorption of Nonionic over Anionic Surfactants at the Liquid/Liquid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12213-12222. [PMID: 34607422 DOI: 10.1021/acs.langmuir.1c02189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
While many studies have investigated synergic interactions between surfactants in mixed systems, understanding possible competitive behaviors between interfacial components of binary surfactant systems is necessary for the optimized efficacy of applications dependent on surface properties. Such is the focus of these studies in which the surface behavior of a binary surfactant mixture containing nonionic (Span-80) and anionic (AOT) components adsorbing to the oil/water interface was investigated with vibrational sum-frequency (VSF) spectroscopy and surface tensiometry experimental methods. Time-dependent spectroscopic studies reveal that while both nonionic and anionic surfactants initially adsorb to the interface, anionic surfactants desorb over time as the nonionic surfactant continues to adsorb. Concentration studies that vary the ratio of Span-80 to AOT in bulk solution show that the nonionic surfactant preferentially adsorbs to the oil/water interface over the anionic surfactant. These studies have important implications for applications in which mixed surfactant systems are used to alter interfacial properties, such as pharmaceuticals, industrial films, and environmental remediation.
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Affiliation(s)
- Rebecca M Altman
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Evan L Christoffersen
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Konnor K Jones
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Virginia M Krause
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Geraldine L Richmond
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
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14
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Shi Z, Li Y, Dong L, Guan Y, Bao M. Deep remediation of oil spill based on the dispersion and photocatalytic degradation of biosurfactant-modified TiO 2. CHEMOSPHERE 2021; 281:130744. [PMID: 34029969 DOI: 10.1016/j.chemosphere.2021.130744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/21/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
The employment of dispersant was an effective method to treat marine oil spill pollution. However, conventional dispersants only showed a single oil dispersion. Here, by modifying TiO2 nanoparticles with biosurfactant-Rhamnolipids (Rha), a highly efficient particulate dispersant with photocatalytic activity was developed. Rha-TiO2 showed both excellent oil spill dispersion and facilitated photodegradation for oil simultaneously. The oil droplets dispersed by Rha-TiO2 in seawater exhibited long time stability, which indicated the synergistic emulsification interactions between TiO2 and Rha in artificial sea water (ASW). The dispersion mechanism of Rha-TiO2 was analyzed, we found the TiO2 nanoparticles alone weren't effectively emulsified oil in high salinity ASW, but the addition of a small amount of Rha could modify the surface wettability of TiO2 nanoparticles to form the stable emulsion. In addition, the addition of a small amount of Rha could reduce the surface tension of the oil-water interface, which contribute to increasing the content of TiO2 nanoparticles at the oil-water interface, form a steric rigid layer around the oil droplets to prevent droplet coalescence and facilitate the further photocatalytic degradation of oil. In short, the Rha-TiO2 nanoparticles could effective disperse oil in ASW, meanwhile the TiO2 also played the role of photocatalytic degradation of oil pollution. Hence, this study developed a novel photocatalytic particulate dispersant to remediate marine oil spill and delivered a new feasible solution for practical oil spill treatment in the future.
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Affiliation(s)
- Zhixin Shi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China.
| | - Limei Dong
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
| | - Yihao Guan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
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15
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Demina TS, Akopova TA, Zelenetsky AN. Materials Based on Chitosan and Polylactide: From Biodegradable Plastics to Tissue Engineering Constructions. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221020028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The transition to green chemistry and biodegradable polymers is a logical stage in the development of modern chemical science and technology. In the framework of this review, the advantages, disadvantages, and potential of biodegradable polymers of synthetic and natural origin are compared using the example of polylactide and chitosan as traditional representatives of these classes of polymers, and the possibilities of their combination via obtaining composite materials or copolymers are assessed. The mechanochemical approach to the synthesis of graft copolymers of chitosan with oligolactides/polylactides is considered in more detail.
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16
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Akopova TA, Demina TS, Khavpachev MA, Popyrina TN, Grachev AV, Ivanov PL, Zelenetskii AN. Hydrophobic Modification of Chitosan via Reactive Solvent-Free Extrusion. Polymers (Basel) 2021; 13:2807. [PMID: 34451348 PMCID: PMC8399264 DOI: 10.3390/polym13162807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 01/31/2023] Open
Abstract
Hydrophobic derivatives of polysaccharides possess an amphiphilic behavior and are widely used as rheological modifiers, selective sorbents, and stabilizers for compositions intended for various applications. In this work, we studied the mechanochemical reactions of chitosan alkylation when interacting with docosylglycidyl and hexadecylglycidyl ethers in the absence of solvents at shear deformation in a pilot twin-screw extruder. The chemical structure and physical properties of the obtained derivatives were characterized by elemental analysis, FT-IR spectroscopy, dynamic light scattering, scanning electron microscopy, and mechanical tests. According to calculations for products soluble in aqueous media, it was possible to introduce about 5-12 hydrophobic fragments per chitosan macromolecule with a degree of polymerization of 500-2000. The length of the carbon chain of the alkyl substituent significantly affects its reactivity under the chosen conditions of mechanochemical synthesis. It was shown that modification disturbs the packing ability of the macromolecules, resulting in an increase of plasticity and drop in the elastic modulus of the film made from the hydrophobically modified chitosan samples.
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Affiliation(s)
- Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Mukhamed A. Khavpachev
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Tatiana N. Popyrina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Andrey V. Grachev
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygina St., 119991 Moscow, Russia;
| | - Pavel L. Ivanov
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Alexander N. Zelenetskii
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
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17
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Corcoran LG, Saldana Almaraz BA, Amen KY, Bothun GD, Raghavan SR, John VT, McCormick AV, Penn RL. Using Microemulsion Phase Behavior as a Predictive Model for Lecithin-Tween 80 Marine Oil Dispersant Effectiveness. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8115-8128. [PMID: 34191521 DOI: 10.1021/acs.langmuir.1c00651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Marine oil dispersants typically contain blends of surfactants dissolved in solvents. When introduced to the crude oil-seawater interface, dispersants facilitate the breakup of crude oil into droplets that can disperse in the water column. Recently, questions about the environmental persistence and toxicity of commercial dispersants have led to the development of "greener" dispersants consisting solely of food-grade surfactants such as l-α-phosphatidylcholine (lecithin, L) and polyoxyethylenated sorbitan monooleate (Tween 80, T). Individually, neither L nor T is effective at dispersing crude oil, but mixtures of the two (LT blends) work synergistically to ensure effective dispersion. The reasons for this synergy remain unexplained. More broadly, an unresolved challenge is to be able to predict whether a given surfactant (or a blend) can serve as an effective dispersant. Herein, we investigate whether the LT dispersant effectiveness can be correlated with thermodynamic phase behavior in model systems. Specifically, we study ternary "DOW" systems comprising LT dispersant (D) + a model oil (hexadecane, O) + synthetic seawater (W), with the D formulation being systematically varied (across 0:100, 20:80, 40:60, 60:40, 80:20, and 100:0 L:T weight ratios). We find that the most effective LT dispersants (60:40 and 80:20 L:T) induce broad Winsor III microemulsion regions in the DOW phase diagrams (Winsor III implies that the microemulsion coexists with aqueous and oil phases). This correlation is generally consistent with expectations from hydrophilic-lipophilic deviation (HLD) calculations, but specific exceptions are seen. This study then outlines a protocol that allows the phase behavior to be observed on short time scales (ca. hours) and provides a set of guidelines to interpret the results. The complementary use of HLD calculations and the outlined fast protocol are expected to be used as a predictive model for effective dispersant blends, providing a tool to guide the efficient formulation of future marine oil dispersants.
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Affiliation(s)
- Louis G Corcoran
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Brian A Saldana Almaraz
- Washington Technology Magnet School, 1495 Rice Street, Saint Paul, Minnesota 55117, United States
| | - Kamilah Y Amen
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Geoffrey D Bothun
- Department of Chemical Engineering, University of Rhode Island, 51 Lower College Road, Kingston, Rhode Island 02881, United States
| | - Srinivasa R Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, 4418 Stadium Drive, College Park, Maryland 20742, United States
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University, 300 Lindy Boggs Building, New Orleans, Louisiana 70112, United States
| | - Alon V McCormick
- Department of Chemical Engineering and Material Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - R Lee Penn
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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18
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Kücük Ş, Hejase CA, Kolesnyk IS, Chew JW, Tarabara VV. Microfiltration of saline crude oil emulsions: Effects of dispersant and salinity. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:124747. [PMID: 33951851 DOI: 10.1016/j.jhazmat.2020.124747] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/18/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
Dispersants reduce oil-water interfacial tension making the separation of oil-water emulsions challenging. In this study, crude oil stabilized by the dispersant, Corexit EC9500A, was emulsified in synthetic sea water using a range of Corexit/crude oil concentration ratios (up to 10% by volume). With an interfacial tension of only 8.0 mJ/m2 at 0.5 mL(Corexit)/L, approximately 50% of the crude was dispersed into droplets <10 µm. Near complete rejection of oil in crossflow separation tests was accompanied by a precipitous flux decline attributable in part to dispersant- and salinity-induced decrease in membrane's oleophobicity (4.2 mJ/m2 decrease in surface energy). Screening of electrostatic interactions prompted oil coalescence that occurred at the membrane surface but not in the bulk of the emulsion. Real-time in situ visualization by Direct Observation Through Membrane gave direct evidence of surface coalescence pointing to both its detrimental effects (spread of contiguous films) and possible advantages (removal of large droplets by crossflow shear).
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Affiliation(s)
- Şeyma Kücük
- Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824, USA.
| | - Charifa A Hejase
- Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824, USA.
| | - Iryna S Kolesnyk
- Department of Chemistry, National University of Kyiv-Mohyla Academy, Kyiv 04070, Ukraine.
| | - Jia Wei Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637459, Singapore; Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 637141, Singapore.
| | - Volodymyr V Tarabara
- Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824, USA.
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19
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Negi H, Verma P, Singh RK. A comprehensive review on the applications of functionalized chitosan in petroleum industry. Carbohydr Polym 2021; 266:118125. [PMID: 34044941 DOI: 10.1016/j.carbpol.2021.118125] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 04/13/2021] [Accepted: 04/25/2021] [Indexed: 10/21/2022]
Abstract
The biomaterials have gained the attention for utilization as sustainable alternatives for petroleum-derived products due to the rapid depletion of petroleum resources and environmental issues. Chitosan is an economical, renewable and abundant polysaccharide having unique molecular characteristics. Chitosan is derived by deacetylation of chitin, a natural polysaccharide existing in insects' exoskeleton, outer shells of crustaceans, and some fungi cell walls. Chitosan is widely used in numerous domains like agriculture, food, water treatment, medicine, cosmetics, fisheries, packaging, and chemical industry. This review aims to account for all the efforts made towards chitosan and its derivatives for utilization in the petroleum industry and related processes including exploration, extraction, refining, transporting oil spillages, and wastewater treatment. This review includes a compilation of various chemical modifications of chitosan to enhance the petroleum field's performance and applicability.
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Affiliation(s)
- Himani Negi
- Academy of Scientific and Innovative Research (AcSIR), Kamla Nehru Nagar, Ghaziabad 201 002, Uttar Pradesh, India; Advanced Crude Oil Research Centre, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun 248 005, Uttarakhand, India
| | - Priyanka Verma
- School of Environment and Natural Resources, Doon University, Dehradun 248 001, Uttarakhand, India
| | - Raj Kumar Singh
- Advanced Crude Oil Research Centre, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun 248 005, Uttarakhand, India.
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20
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Ternary blends from biological poly(3-hydroxybutyrate-co-4-hydroxyvalerate), poly(L-lactic acid), and poly(vinyl acetate) with balanced properties. Int J Biol Macromol 2021; 181:60-71. [PMID: 33771544 DOI: 10.1016/j.ijbiomac.2021.03.127] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/13/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022]
Abstract
Herein, poly(3-hydroxybutyrate-co-4-hydroxyvalerate) (P34HB), poly (L-lactic acid) (PLA), and poly(vinyl acetate) (PVAc) were initially melt compounded to prepare a ternary blend with balanced properties. Further, the miscibility, phase morphology, thermal and crystallization behaviors, and rheological and mechanical properties of the blends were studied. The dynamic mechanical analysis (DMA) results indicated that P34HB and PLA were partially miscible; however, PVAc showed full miscibility with PLA and P34HB. PVAc would selectively disperse in the PLA phase when considering low content, whereas it would gradually diffuse into the P34HB phase with the increasing PVAc concentration. A phase-separated morphology was observed for all the blends using scanning electron microscopy (SEM), and the diameters of the dispersed phases increased with the increasing PVAc concentration. The crystallization of P34HB was enhanced by the presence of PLA alone and was restrained by the simultaneous incorporation of PVAc and PLA. The rheological properties of P34HB were significantly improved because of the PVAc phase. Unexpectedly, the toughness and stiffness of the P34HB in ternary blends clearly improved because of the incorporation of PLA and PVAc.
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21
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Cooper C, Adams E, Gros J. An evaluation of models that estimate droplet size from subsurface oil releases. MARINE POLLUTION BULLETIN 2021; 163:111932. [PMID: 33418342 DOI: 10.1016/j.marpolbul.2020.111932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
Droplet size substantially affects the fate of oil released from deep subsea leaks. A baseline dataset of volume-median droplet diameters (d50), culled from ~250 laboratory observations, is used to validate seven droplet-size models. Four models compare reasonably well, having 95% confidence limits in d50 of ~±50%. Simulations with a near-field fate model (TAMOC) reveals that the four best-performing models, with d50 of 1.3-2.2 mm, agree similarly with observed fractionation of petroleum compounds in the water column during June 4-July 15, 2010. Model results suggest that, had a higher dose of dispersant been applied at the wellhead during Deepwater Horizon oil spill (DWH), the d50 would have dropped by an order of magnitude, reducing surfacing C1-C9 volatiles by 3.5×. Model uncertainty is found to be substantial for DWH-like blowouts treated with chemical dispersants, suggesting the need for further droplet-size model improvement.
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Affiliation(s)
| | - Eric Adams
- Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Jonas Gros
- GEOMAR Helmholtz Centre for Ocean Research Kiel, RD2/Marine Geosystems, Wischhofstrasse 1-3, D-24148 Kiel, Germany
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22
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Lü T, Wu Y, Tao Y, Zhang D, Qi D, Zhao H. Facile synthesis of octyl-modified alginate for oil-water emulsification. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04745-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Tummons E, Han Q, Tanudjaja HJ, Hejase CA, Chew JW, Tarabara VV. Membrane fouling by emulsified oil: A review. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116919] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Afshar-Mohajer N, Lam A, Dora L, Katz J, Rule AM, Koehler K. Impact of dispersant on crude oil content of airborne fine particulate matter emitted from seawater after an oil spill. CHEMOSPHERE 2020; 256:127063. [PMID: 32438130 DOI: 10.1016/j.chemosphere.2020.127063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/10/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Inhalation of PM2.5, particles with an aerodynamic diameter <2.5 μm, from sea spray after crude oil spills could present serious health concerns. The addition of dispersants to effectively spread the crude oil throughout the water column has been practiced in recent years. Here, we investigated the possibility of an increase in the toxic content of fine PM after adding dispersant. A laboratory setup consisted of a vertical tank filled with seawater, 31.5 L airspace for aerosol sampling, and a bubble generating nozzle that aerosolized the oily droplets. Four different cases were studied: no slick, 0.5-mm-thick slick of pure crude oil (MC252 surrogate), dispersant (Corexit 9500A) mixed with crude oil at dispersant to oil ratio (DOR) 1:25, and DOR 1:100. The resulting airborne droplets were sampled for gravimetric and chemical analyses through development of a gas chromatography and mass spectrometry technique. Also, PM2.5 particles were size-fractioned into 13 size bins covering <60 nm to 12.1 μm using a low-pressure cascade impactor. The highest PM2.5 concentration (20.83 ± 5.21 μg/m3) was released from a slick of DOR 1:25, 8.83× greater than the case with pure crude oil. The average ratio of crude oil content from the slick of DOR 1:25 to the case with pure crude oil was 2.37 (1.83 vs 0.77 μg/m3) that decreased to 1.17 (0.90 vs 0.77 μg/m3) at DOR 1:100. For particles <220 nm, the resultant crude oil concentrations were 0.64 and 0.29 μg/m3 at DOR 1:25 and 1:100, both higher than 0.11 μg/m3 from the slick of pure crude oil.
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Affiliation(s)
- Nima Afshar-Mohajer
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Gradient Corporation, Boston, MA, USA.
| | - Andres Lam
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lakshmana Dora
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Joseph Katz
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Ana M Rule
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kirsten Koehler
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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25
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Galdopórpora JM, Morcillo MF, Ibar A, Perez CJ, Tuttolomondo MV, Desimone MF. Development of Silver Nanoparticles/Gelatin Thermoresponsive Nanocomposites: Characterization and Antimicrobial Activity. Curr Pharm Des 2020; 25:4121-4129. [PMID: 31589116 DOI: 10.2174/1381612825666191007163152] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Skin and soft tissue infections involve microbial invasion of the skin and underlying soft tissues. To overcome this problem, nanocomposites were obtained using gelatin as a biopolymer scaffold and silver nanoparticles as a wide spectrum antimicrobial agent. Water and glycerol have been used as solvents for the gelatin hydrogel synthesis. This mixture led to a stable and homogeneous biomaterial with improved mechanical properties. METHODS Silver nanoparticles were characterized using SEM, EDS and TEM. Moreover, the AgNp/gelatin nanocomposite obtained using these nanoparticles was characterized using SEM and FTIR. Moreover, mechanical and swelling properties were studied. RESULTS The storage modulus was 3000 Pa for gelatin hydrogels and reached 5800 Pa for AgNp/gelatin nanocomposite. Silver nanoparticles have been studied as an alternative to antibiotics. Importantly, the rate of silver release was modulated as a function of the temperature of the nanocomposite. Thus, the silver release from the nanocomposites at 24 °C and 38 °C was analyzed by atomic absorption spectroscopy. The silver release reached 25% after 24 h at 24 °C, while a 75% release was achieved at 38°C in the same period, showing the material thermoresponsive behavior. AgNp/gelatin nanocomposite showed a deleterious effect over 99.99% of Pseudomonas aeruginosa and Staphylococcus aureus, leading to a material with antimicrobial properties. CONCLUSION AgNp/gelatin nanocomposite with improved mechanical properties and silver nanoparticles as a source of silver ions has been synthesized. The properties of the nanocomposite with controlled silver delivery result in a more efficient topical pharmaceutical form for wound healing applications.
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Affiliation(s)
- Juan M Galdopórpora
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET), Instituto de Quimica y Metabolismo del Farmaco (IQUIMEFA), Facultad de Farmacia y Bioquimica, Junin 956, Piso 3° (1113), Buenos Aires, Argentina
| | - Marina F Morcillo
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET), Instituto de Quimica y Metabolismo del Farmaco (IQUIMEFA), Facultad de Farmacia y Bioquimica, Junin 956, Piso 3° (1113), Buenos Aires, Argentina
| | - Angelina Ibar
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET), Instituto de Quimica y Metabolismo del Farmaco (IQUIMEFA), Facultad de Farmacia y Bioquimica, Junin 956, Piso 3° (1113), Buenos Aires, Argentina
| | - Claudio J Perez
- Instituto en Investigaciones en Ciencia y Tecnologia de Materiales, Universidad de Mar del Plata, (CONICET), Juan B. Justo 4302, Mar del Plata, Argentina
| | - Maria V Tuttolomondo
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET), Instituto de Quimica y Metabolismo del Farmaco (IQUIMEFA), Facultad de Farmacia y Bioquimica, Junin 956, Piso 3° (1113), Buenos Aires, Argentina
| | - Martin F Desimone
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET), Instituto de Quimica y Metabolismo del Farmaco (IQUIMEFA), Facultad de Farmacia y Bioquimica, Junin 956, Piso 3° (1113), Buenos Aires, Argentina
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26
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Cavallaro G, Milioto S, Konnova S, Fakhrullina G, Akhatova F, Lazzara G, Fakhrullin R, Lvov Y. Halloysite/Keratin Nanocomposite for Human Hair Photoprotection Coating. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24348-24362. [PMID: 32372637 PMCID: PMC8007073 DOI: 10.1021/acsami.0c05252] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
We propose a novel keratin treatment of human hair by its aqueous mixtures with natural halloysite clay nanotubes. The loaded clay nanotubes together with free keratin produce micrometer-thick protective coating on hair. First, colloidal and structural properties of halloysite/keratin dispersions and the nanotube loaded with this protein were investigated. Above the keratin isoelectric point (pH = 4), the protein adsorption into the positive halloysite lumen is favored because of the electrostatic attractions. The ζ-potential magnitude of these core-shell particles increased from -35 (in pristine form) to -43 mV allowing for an enhanced colloidal stability (15 h at pH = 6). This keratin-clay tubule nanocomposite was used for the immersion treatment of hair. Three-dimensional-measuring laser scanning microscopy demonstrated that 50-60% of the hair surface coverage can be achieved with 1 wt % suspension application. Hair samples have been exposed to UV irradiation for times up to 72 h to explore the protection capacity of this coating by monitoring the cysteine oxidation products. The nanocomposites of halloysite and keratin prevent the deterioration of human hair as evident by significant inhibition of cysteic acid. The successful hair structure protection was also visually confirmed by atomic force microscopy and dark-field hyperspectral microscopy. The proposed formulation represents a promising strategy for a sustainable medical coating on the hair, which remediates UV irradiation stress.
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Affiliation(s)
- Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, Firenze I-50121, Italy
| | - Stefana Milioto
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, Firenze I-50121, Italy
| | - Svetlana Konnova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation
| | - Gölnur Fakhrullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation
| | - Farida Akhatova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, Firenze I-50121, Italy
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation
- Institute for Micromanufacturing, Louisiana Tech University, 505 Tech Drive, Ruston, Louisiana 71272, United States
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, 505 Tech Drive, Ruston, Louisiana 71272, United States
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27
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Factors affecting the transport of petroleum colloids in saturated porous media. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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28
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Biocompatible Herder for rapid oil spill treatment over a wide temperature range. J Loss Prev Process Ind 2019. [DOI: 10.1016/j.jlp.2019.103948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Hou R, Wang X, Zhang Q, Han Y, Zhang T, Wang Y. Modified Chitosan as a “Multi‐subtype” Macromolecular Emulsifier for Preparing Asphalt Emulsion. ChemistrySelect 2019. [DOI: 10.1002/slct.201901739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Runhan Hou
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
| | - Xiaoxi Wang
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
| | - Qian Zhang
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
| | - Yuxuan Han
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
| | - Tong Zhang
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
| | - Yuexin Wang
- School of Chemical EngineeringHebei University of Technology Tianjin 300130 P. R. China
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30
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French-McCay D, Crowley D, McStay L. Sensitivity of modeled oil fate and exposure from a subsea blowout to oil droplet sizes, depth, dispersant use, and degradation rates. MARINE POLLUTION BULLETIN 2019; 146:779-793. [PMID: 31426220 DOI: 10.1016/j.marpolbul.2019.07.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 07/05/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
As part of a Comparative Risk Assessment (CRA) developed and reported previously, oil spill modeling of a hypothetical blowout at 1400 m in the northeastern Gulf of Mexico was performed to evaluate changes in oil exposures with alternative response options, i.e., combinations of mechanical recovery, in-situ burning, surface dispersant application and subsea dispersant injection (SSDI). To assess if conclusions from this study could be extended to other spill scenarios, sensitivities of the predicted oil fate and exposure metrics to location, release depth, oil and gas flow rate, gas content, orifice size, oil droplet size distribution, and biodegradation rates were examined. Results show that the fraction of oil surfacing is highly sensitive to oil droplet size distribution and depth of release. Across the simulations performed, SSDI use reduced oil droplet sizes released, thereby mitigating surface and shoreline oiling, volatile hydrocarbon exposures, and potential surface water column exposures.
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31
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Xie L, Mi X, Liu Y, Li Y, Sun Y, Zhan S, Hu W. Highly Efficient Degradation of Polyacrylamide by an Fe-Doped Ce 0.75Zr 0.25O 2 Solid Solution/CF Composite Cathode in a Heterogeneous Electro-Fenton Process. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30703-30712. [PMID: 31361111 DOI: 10.1021/acsami.9b06396] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polyacrylamide (PAM) in environmental water has become a major problem in water pollution management due to its high molecular mass, corrosion resistance, high viscosity, and nonabsorption by soil. The composite of Fe-doped Ce0.75Zr0.25O2 solid solution (Fe-Ce0.75Zr0.25O2) loaded on carbon felt (CF) was fabricated by a hydrothermal synthesis method, which was used as the cathode in a heterogeneous electro-Fenton system for the degradation of PAM. It showed that the degradation efficiency of PAM by the Fe-Ce0.75Zr0.25O2/CF cathode was 86% after 120 min and the molecular mass of PAM decreased by more than 90% after 300 min. Total organic carbon removal reached 78.86% in the presence of Fe-Ce0.75Zr0.25O2/CF, while the value was only 38.01% in the absence of Fe-Ce0.75Zr0.25O2. Further studies showed that the breaking of the chain begins with the amide bond, and then, the carbon chain was cracked into a short alkyl chain. As degradation progressed, both the complex viscosity and elasticity modulus of PAM solutions decreased nearly 50% at 300 min. It indicated that •OH were the most significant active species for the degradation of PAM. This novel Fe-Ce0.75Zr0.25O2/CF composite is an efficient and promising electrode for the removal of PAM in wastewater.
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Affiliation(s)
- Liangbo Xie
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science , Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Xueyue Mi
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering , Nankai University , Tianjin 300071 , China
| | - Yigang Liu
- Bohai Oilfield Research Institute, Tianjin Branch, CNOOC China Limited , Tianjin 300459 , China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science , Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Yan Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering , Nankai University , Tianjin 300071 , China
| | - Sihui Zhan
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering , Nankai University , Tianjin 300071 , China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science , Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
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32
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Chen D, Wang A, Li Y, Hou Y, Wang Z. Biosurfactant-modified palygorskite clay as solid-stabilizers for effective oil spill dispersion. CHEMOSPHERE 2019; 226:1-7. [PMID: 30908963 DOI: 10.1016/j.chemosphere.2019.03.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/27/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
An effective and conventional remediation technique in marine oil spills is to apply chemical dispersants to emulsify oil slicks into small oil droplets. Still, the potential hazards of chemical dispersants onto the marine ecosystem have motivated the research for environmentally friendly alternative while keeping exceptional dispersion ability. Here, we showed that the mixture of palygorskite (PAL) and rhamnolipid (Rha) formed a biocompatible alternative to synthetic surfactants used for oil spill dispersion. The oil droplets dispersed by R-PAL presented a small average size and long-term stability, which illustrated the synergistic interactions between Rha and PAL acting as an efficient dispersant in artificial sea water (ASW). Due to the strong flocculation caused by high salinity, PAL alone was not effective emulsifiers in ASW. A small amount of Rha could played a major role in modifying the surface characteristics of PAL and decreasing oil-water interfacial tension. Therefore, PAL particles irreversibly adsorbed onto the oil-ASW interface and formed a rigid interfacial film around oil droplets in the presence of Rha, which offered an efficient barrier to droplet coalescence. The synergistic interactions between PAL and Rha could enable the dispersion of tetradecane in ASW. Such a functionality was further tested in dispersing crude oil in ASW. The study presents a new strategy of using a mixture of PAL and Rha for oil dispersion, thus providing an ecofriendly alternative to conventional dispersants.
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Affiliation(s)
- Dafan Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Aiqin Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China.
| | - Yajie Hou
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education / Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China.
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33
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Brandvik PJ, Daling PS, Leirvik F, Krause DF. Interfacial tension between oil and seawater as a function of dispersant dosage. MARINE POLLUTION BULLETIN 2019; 143:109-114. [PMID: 31789144 DOI: 10.1016/j.marpolbul.2019.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/31/2019] [Accepted: 04/05/2019] [Indexed: 06/10/2023]
Abstract
This paper presents a compilation of data describing interfacial tension between oil and seawater (IFT(oil-water)) as a function of dispersant dosage. The data are from several earlier laboratory studies simulating subsea oil blowouts to evaluate subsea injection of dispersant (SSDI). Three dispersants were tested with four oil types to give a large variation in oil properties (paraffinic, light, waxy and asphaltenic). A general expression for IFT(oil-water) as a function of dispersant dosage is proposed based on the compiled data. IFT(oil-water) versus dosage is needed by algorithms to predict oil droplet sizes from subsea releases. However, such a relationship based on averaged data should be used with care and IFT measurements on the actual oil-dispersant combination should always be preferred.
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Affiliation(s)
| | - Per S Daling
- SINTEF Ocean, Marine Environmental Technology, Trondheim, Norway
| | - Frode Leirvik
- SINTEF Ocean, Marine Environmental Technology, Trondheim, Norway
| | - Daniel F Krause
- SINTEF Ocean, Marine Environmental Technology, Trondheim, Norway
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34
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Brandvik PJ, Storey C, Davies EJ, Johansen Ø. Combined releases of oil and gas under pressure; the influence of live oil and natural gas on initial oil droplet formation. MARINE POLLUTION BULLETIN 2019; 140:485-492. [PMID: 30803669 DOI: 10.1016/j.marpolbul.2019.01.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/16/2019] [Accepted: 01/20/2019] [Indexed: 06/09/2023]
Abstract
Both oil droplets and gas bubbles have simultaneously been quantified in laboratory experiments that simulate deep-water subsea releases of both live oil (saturated with gas) and additional natural gas under high pressure. These data have been used to calculate particle size distributions (50-5000 μm) for both oil and gas. The experiments showed no significant difference in oil droplet sizes versus pressure (from 5 m to 1750 m) for experiments with live oil. For combined releases of live oil and natural gas, oil droplet sizes showed a clear reduction as a function of increased gas void fraction (increased release velocity) and a weak reduction with increased depth (increased gas density/momentum). Oil droplets were reduced by a factor of 3 to 4 during simulated subsea dispersant injection (SSDI) and no significant effect of pressure was observed. This indicates that SSDI effectiveness is not dependent on water depth or pressure.
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Affiliation(s)
| | - Chris Storey
- SwRI, Ocean Simulation Labs, San Antonio, TX, USA
| | | | - Øistein Johansen
- SINTEF Ocean, Marine Environmental Technology, Trondheim, Norway
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35
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Li Y, Han C, Yu Y, Huang D. Uniaxial stretching and properties of fully biodegradable poly(lactic acid)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blends. Int J Biol Macromol 2019; 129:1-12. [PMID: 30731159 DOI: 10.1016/j.ijbiomac.2019.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 01/08/2019] [Accepted: 02/02/2019] [Indexed: 01/14/2023]
Abstract
In this work, fully biodegradable poly (lactic acid) (PLA)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3HB-co-4HB)) blends of various compositions were uniaxially stretched at different stretch ratios above the glass transition temperature (Tg) of PLA. These stretched blends exhibited a closed microvoid structure, as evaluated by scanning electron microscopy. Differential scanning calorimetry and wide-angle X-ray diffraction analyses verified that stretching-induced crystallization in the α-form could be achieved in the PLA matrix. This hierarchical structure could improve the multifunctional performance of PLA blends. The density of drawn blends with a P(3HB-co-4HB) content of 30 wt% and stretch ratio of 6 was reduced by 20% as compared to neat PLA. The excellent combination of strength, modulus, and ductility of drawn blends with a P(3HB-co-4HB) content of 10 wt% and stretch ratio of 6 was demonstrated; compared to neat PLA, these parameters increased by 300%, 320%, and 317%, respectively in breaking strength, modulus, and elongation at break (172.2 MPa, 4200 MPa, and 18.4%), respectively. Meanwhile, control over the degradation rate and thermomechanical-property improvement was achieved by adjusting the stretch ratio and/or blend composition. In practical terms, this processing technique provides a new way to manufacture lightweight and high-performance microvoid-containing biopolymers.
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Affiliation(s)
- Yi Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; School of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Changyu Han
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yancun Yu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Dexin Huang
- School of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China
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36
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Cavallaro G, Lazzara G, Rozhina E, Konnova S, Kryuchkova M, Khaertdinov N, Fakhrullin R. Organic-nanoclay composite materials as removal agents for environmental decontamination. RSC Adv 2019; 9:40553-40564. [PMID: 35542638 PMCID: PMC9076278 DOI: 10.1039/c9ra08230a] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/22/2019] [Indexed: 12/02/2022] Open
Abstract
Here we overview the recent advances in the fabrication of sustainable composite nanomaterials with decontamination capacity towards inorganic and organic pollutants. In this regards, we present the development of hybrid systems based on clay nanoparticles with different shapes (such as kaolinite nanosheets and halloysite nanotubes) and organic molecules (biopolymers, surfactants, cucurbituril) as efficient removal agents for both aliphatic and aromatic hydrocarbons. Due to their high specific surface area, clay nanoparticles have been successfully employed as fillers for composite membranes with excellent filtration capacity. The preparation of composite gel beads based on biopolymers (alginate and pectin) and halloysite nanotubes has been discussed and their adsorption capacities towards both heavy metals and organic dyes have been highlighted. We describe the successful preparation of kaolinite/graphene composites as well as tubular inorganic micelles obtained by the select functionalization of the halloysite cavity with anionic surfactants. Finally, recent research on Pickering emulsions (for oil spill remediation) and bioremediation technologies has been discussed. Here we overview the recent advances in the fabrication of sustainable composite nanomaterials with decontamination capacity towards inorganic and organic pollutants.![]()
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Affiliation(s)
| | - Giuseppe Lazzara
- University of Palermo
- Department of Physics and Chemistry
- Palermo
- Italy
| | - Elvira Rozhina
- Institute of Fundamental Biology and Medicine
- Kazan Federal University
- Kazan
- Russian Federation
| | - Svetlana Konnova
- Institute of Fundamental Biology and Medicine
- Kazan Federal University
- Kazan
- Russian Federation
| | - Marina Kryuchkova
- Institute of Fundamental Biology and Medicine
- Kazan Federal University
- Kazan
- Russian Federation
| | - Nail Khaertdinov
- Institute of Fundamental Biology and Medicine
- Kazan Federal University
- Kazan
- Russian Federation
| | - Rawil Fakhrullin
- Institute of Fundamental Biology and Medicine
- Kazan Federal University
- Kazan
- Russian Federation
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37
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Lee JG, Larive LL, Valsaraj KT, Bharti B. Binding of Lignin Nanoparticles at Oil-Water Interfaces: An Ecofriendly Alternative to Oil Spill Recovery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43282-43289. [PMID: 30452221 DOI: 10.1021/acsami.8b17748] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Synthetic amphiphiles used for managing large-scale oil spills have a toxic impact on the environment and marine life. Developing new oil spill recovery technologies is critical to minimize the environmental and ecological impact of such disasters. Here, we show that a mixture of lignin nanoparticles and 1-pentanol forms a biocompatible alternative to nondegradable, synthetic amphiphiles used for oil spill recovery. The pentanol in the mixture generates initial Marangoni flow and confines the spilled oil into a thick slick on the surface of water. While the alcohol solubilizes, lignin nanoparticles irreversibly adsorb onto the oil-water interface. We find that the lignin nanoparticle adsorption to the oil-water interface is governed by a combination of electrostatic, van der Waals, and hydrophobic interactions between the particles and the interface. These interactions, combined with interparticle electrostatic repulsion between nanoparticles adsorbed at the oil-water interface, drive the formation of a submonolayer. The submonolayer transforms into a film of jammed nanoparticles due to compressive stress acting on the interface upon the solubilization of pentanol. This interfacial layer of lignin nanoparticles restricts oil from respreading and locks the oil in its confined state. The herded state of the oil with the interfacial layer of nanoparticles facilitates safe removal of the spilled oil using mechanical methods. The study presents a new principle of using a mixture of heavy alcohol and biocompatible nanoparticles for oil herding applications, thus providing an ecofriendly alternative to oil spill recovery.
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Affiliation(s)
- Jin Gyun Lee
- Cain Department of Chemical Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Luke L Larive
- Cain Department of Chemical Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Kalliat T Valsaraj
- Cain Department of Chemical Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Bhuvnesh Bharti
- Cain Department of Chemical Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
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38
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39
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Owoseni O, Zhang Y, Omarova M, Li X, Lal J, McPherson GL, Raghavan SR, Bose A, John VT. Microstructural characteristics of surfactant assembly into a gel-like mesophase for application as an oil spill dispersant. J Colloid Interface Sci 2018; 524:279-288. [PMID: 29655147 DOI: 10.1016/j.jcis.2018.03.089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/24/2018] [Accepted: 03/26/2018] [Indexed: 11/28/2022]
Abstract
HYPOTHESIS Polyoxyethylene (20) sorbitan monooleate (Tween 80) can be incorporated into the gel-like phase formed by L-α-phosphatidylcholine (PC) and dioctyl sulfosuccinate sodium salt (DOSS) for potential application as a gel-like dispersant for oil spill treatment. Such gel-like dispersants offer advantages over existing liquid dispersants for mitigating oil spill impacts. EXPERIMENTS Crude oil-in-saline water emulsions stabilized by the surfactant system were characterized by optical microscopy and turbidity measurements while interfacial tensions were measured by the spinning drop and pendant drop techniques. The microstructure of the gel-like surfactant mesophase was elucidated using small angle neutron scattering (SANS), cryo scanning electron microscopy (cryo-SEM), and 31P nuclear magnetic resonance (NMR) spectroscopy. FINDINGS The gel-like phase consisting of PC, DOSS and Tween 80 is positively buoyant on water and breaks down on contact with floating crude oil layers to release the surfactant components. The surfactant mixture effectively lowers the crude oil-saline water interfacial tension to the 10-2 mN/m range, producing stable crude oil-in-saline water emulsions with an average droplet size of about 7.81 µm. Analysis of SANS, cryo-SEM and NMR spectroscopy data reveals that the gel-like mesophase has a lamellar microstructure that transition from rolled lamellar sheets to onion-like, multilamellar structures with increasing Tween 80 content.
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Affiliation(s)
- Olasehinde Owoseni
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Yueheng Zhang
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Marzhana Omarova
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Xin Li
- Louisiana Consortium for Neutron Scattering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Jyotsana Lal
- Louisiana Consortium for Neutron Scattering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Gary L McPherson
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Srinivasa R Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA
| | - Arijit Bose
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, USA
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA.
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40
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Panchal A, Swientoniewski LT, Omarova M, Yu T, Zhang D, Blake DA, John V, Lvov YM. Bacterial proliferation on clay nanotube Pickering emulsions for oil spill bioremediation. Colloids Surf B Biointerfaces 2018; 164:27-33. [DOI: 10.1016/j.colsurfb.2018.01.021] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 12/19/2017] [Accepted: 01/15/2018] [Indexed: 02/08/2023]
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41
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Preparation, surface activity and colloidal properties of the ionic complex of chitosan with hexadecyl-oligo-oxyethylene hemisuccinate. Carbohydr Polym 2018; 183:123-130. [DOI: 10.1016/j.carbpol.2017.11.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/13/2017] [Accepted: 11/24/2017] [Indexed: 11/21/2022]
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42
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Kalliola S, Repo E, Srivastava V, Zhao F, Heiskanen JP, Sirviö JA, Liimatainen H, Sillanpää M. Carboxymethyl Chitosan and Its Hydrophobically Modified Derivative as pH-Switchable Emulsifiers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2800-2806. [PMID: 29406746 PMCID: PMC6150725 DOI: 10.1021/acs.langmuir.7b03959] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/09/2018] [Indexed: 05/23/2023]
Abstract
The emulsification properties of carboxymethyl chitosan (CMChi) and hydrophobically modified carboxymethyl chitosan (h-CMChi) were studied as a function of pH and dodecane/water ratio. The pH was varied between 6-10, and the oil/water ratio between 0.1-2.0. In CMChi solution, the emulsion stability increased as the pH was lowered from 10 to 7, and the phase inversion was shifted from oil/water ratio 1.0 to 1.8, respectively. The system behaved differently in pH 6 due to the aggregation of CMChi and the formation of nanoparticles (∼200-300 nm). No phase inversion was observed and the maximum amount of emulsified oil was reached at oil/water ratio 1.2. The h-CMChi showed similar behavior as a function of pH but, due to hydrophobic modification, the phase inversion was shifted to higher values in pH 7-10. In pH 6, the behavior was similar, but the maximum amount of emulsified oil was higher compared to CMChi. The amount of adsorbed particles correlated with the emulsified amount of oil. Reversible emulsification of dodecane was demonstrated by pH adjustment using CMChi and h-CMChi solutions. The formed emulsions were gel-like, suggesting particle-particle interaction.
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Affiliation(s)
- Simo Kalliola
- Lappeenranta
University of Technology, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Eveliina Repo
- Lappeenranta
University of Technology, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Varsha Srivastava
- Lappeenranta
University of Technology, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Feiping Zhao
- Lappeenranta
University of Technology, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Juha P. Heiskanen
- Research
Unit of Sustainable Chemistry, University
of Oulu, P.O. Box 3000, Oulu FI-90014, Finland
| | - Juho Antti Sirviö
- Fibre
and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, Oulu FI-90014, Finland
| | - Henrikki Liimatainen
- Fibre
and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, Oulu FI-90014, Finland
| | - Mika Sillanpää
- Lappeenranta
University of Technology, Sammonkatu 12, Mikkeli FI-50130, Finland
- Department
of Civil and Environmental Engineering, Florida International University, Miami, Florida 33174, United States
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43
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Elanchezhiyan SSD, Meenakshi S. Facile Fabrication of Metal Ions-Incorporated Chitosan/β-Cyclodextrin Composites for Effective Removal of Oil from Oily Wastewater. ChemistrySelect 2017. [DOI: 10.1002/slct.201702147] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Sankaran Meenakshi
- Department of Chemistry; The Gandhigram Rural Institute-Deemed University, Gandhigram-; 624 302 Tamil Nadu IndiaTel: +91 94 438 38121
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44
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Efavi JK, Nyankson E, Yaya A, Agyei-Tuffour B. Effect of Magnesium and Sodium Salts on the Interfacial Characteristics of Soybean Lecithin Dispersants. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02862] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Johnson Kwame Efavi
- Department of Materials Science
and Engineering, University of Ghana, P.O. Box LG 77, Accra, Ghana
| | - Emmanuel Nyankson
- Department of Materials Science
and Engineering, University of Ghana, P.O. Box LG 77, Accra, Ghana
| | - Abu Yaya
- Department of Materials Science
and Engineering, University of Ghana, P.O. Box LG 77, Accra, Ghana
| | - Benjamin Agyei-Tuffour
- Department of Materials Science
and Engineering, University of Ghana, P.O. Box LG 77, Accra, Ghana
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45
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Grechishcheva NY, Perminova IV, Kholodov VA, Meshcheryakov SV. Stabilization of oil-in-water emulsions by highly dispersed particles: Role in self-cleaning processes and prospects for practical application. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217090432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Spaulding M, Li Z, Mendelsohn D, Crowley D, French-McCay D, Bird A. Application of an Integrated Blowout Model System, OILMAP DEEP, to the Deepwater Horizon (DWH) Spill. MARINE POLLUTION BULLETIN 2017; 120:37-50. [PMID: 28476353 DOI: 10.1016/j.marpolbul.2017.04.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 04/03/2017] [Accepted: 04/22/2017] [Indexed: 06/07/2023]
Abstract
OILMAP DEEP, an integrated system of models (pipeline release, blowout plume, dispersant treatment, oil droplet size distribution, and fountain and intrusion), was applied to the Deepwater Horizon (DWH) oil spill to predict the near field transport and fate of the oil and gas released into the northeastern Gulf of Mexico. The model included multiple, time dependent releases from both the kink and riser, with the observed subsurface dispersant treatment, that characterized the DWH spill and response. The blowout model predictions are in good agreement with the available observations for plume trapping height and the major characteristics of the intrusion layer. Predictions of the droplet size distribution are in good agreement with the limited in situ Holocam observations. Model predictions of the percentage of oil retained in the intrusion layer are consistent with independent estimates based on field observations.
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Affiliation(s)
- Malcolm Spaulding
- Ocean Engineering, University of Rhode Island, Narragansett, RI 02882, USA.
| | - Zhengkai Li
- RPS ASA, South Kingstown, RI 02879, USA; PureLine Treatment Systems, Chicago, IL 60106, USA
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47
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Doshi B, Repo E, Heiskanen JP, Sirviö JA, Sillanpää M. Effectiveness of N,O-carboxymethyl chitosan on destabilization of Marine Diesel, Diesel and Marine-2T oil for oil spill treatment. Carbohydr Polym 2017; 167:326-336. [DOI: 10.1016/j.carbpol.2017.03.064] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/16/2017] [Accepted: 03/19/2017] [Indexed: 12/01/2022]
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48
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Li Z, Spaulding ML, French-McCay D. An algorithm for modeling entrainment and naturally and chemically dispersed oil droplet size distribution under surface breaking wave conditions. MARINE POLLUTION BULLETIN 2017; 119:145-152. [PMID: 28365022 DOI: 10.1016/j.marpolbul.2017.03.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/18/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
A surface oil entrainment model and droplet size model have been developed to estimate the flux of oil under surface breaking waves. Both equations are expressed in dimensionless Weber number (We) and Ohnesorge number (Oh, which explicitly accounts for the oil viscosity, density, and oil-water interfacial tension). Data from controlled lab studies, large-scale wave tank tests, and field observations have been used to calibrate the constants of the two independent equations. Predictions using the new algorithm compared well with the observed amount of oil removed from the surface and the sizes of the oil droplets entrained in the water column. Simulations with the new algorithm, implemented in a comprehensive spill model, show that entrainment rates increase more rapidly with wind speed than previously predicted based on the existing Delvigne and Sweeney's (1988) model, and a quasi-stable droplet size distribution (d<~50μm) is developed in the near surface water.
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Affiliation(s)
- Zhengkai Li
- RPS ASA, 55 Village Square Drive, South Kingstown, RI 02879, USA; PureLine Treatment Systems, 1241 N. Ellis Street, Bensenville, IL 60106, USA.
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49
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Wang A, Li Y, Yang X, Bao M, Cheng H. The enhanced stability and biodegradation of dispersed crude oil droplets by Xanthan Gum as an additive of chemical dispersant. MARINE POLLUTION BULLETIN 2017; 118:275-280. [PMID: 28283177 DOI: 10.1016/j.marpolbul.2017.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 02/20/2017] [Accepted: 03/02/2017] [Indexed: 06/06/2023]
Abstract
It is necessary for chemical dispersant to disperse oil effectively and maintain the stability of oil droplets. In this work, Xanthan Gum (XG) was used as an environmentally friendly additive in oil dispersant formulation to enhance the stability and biodegradation of dispersed crude oil droplets. When XG was used together with chemical dispersant 9500A, the dispersion effectiveness of crude oil in artificial sea water (ASW) and the oil droplet stability were both greatly enhanced. In the presence of XG, lower concentration of 9500A was needed to achieve the effective dispersion and stabilization. In addition to the enhancement of dispersion and stabilization, it was found that the biodegradation rate of crude oil by bacteria was dramatically enhanced when a mixture of 9500A and XG was used as a dispersant. Because of the low environmental impact of XG, this would be a potential way to formulate the dispersant with lower toxicity.
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Affiliation(s)
- Aiqin Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong Province, China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong Province, China.
| | - Xiaolong Yang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong Province, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong Province, China
| | - Hua Cheng
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong Province, China
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50
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Benner SW, Hall CK. Nanoparticle-induced assembly of hydrophobically modified chitosan. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1290235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Steven W. Benner
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Carol K. Hall
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
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