Utilization of recycled polyester nonwovens as sorbent for oil spill cleanups

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Viju Subramoniapillai ◽  
G. Thilagavathi
Keyword(s):  
Crude Oil ◽  
Vegetable Oil ◽  
Oil Spill ◽  
Nonwoven Fabric ◽  
Content Type ◽  
Oil Sorption ◽  
Nonwoven Fabrics ◽  
Oil Retention ◽  
Static Contact ◽  
Polyester Fibers

Purpose The most widely recycled plastic in the world is recycled polyethylene terephthalate (rPET). To minimize the environmental related issues associated with synthetic fibers, several researchers have explored the potential use of recycled polyester fibers in developing various technical textile products. This study aims to develop needle-punched nonwoven fabrics from recycled polyester fibers and investigate its suitability in oil spill cleanup process. Design/methodology/approach According to Box and Behnken factorial design, 15 different needle-punched nonwoven fabrics from recycled polyester fibers were prepared by changing the parameters, namely, needle punch density, needle penetration depth and fabric areal weight. Several featured parameters such as oil sorption, oil retention, oil sorption kinetics, wettability and reusability performance were systematically elucidated. Findings The maximum oil sorption of recycled nonwoven polyester is found to be 24.85 g/g and 20.58 g/g for crude oil and vegetable oil, respectively. The oil retention is about 93%–96% in case of crude oil, whereas 87%–91% in case of vegetable oil. Recycled polyester nonwoven possesses good hydrophobic–oleophilic properties with static contact angle of 138° against water, whereas 0° against crude oil and vegetable oil. The reusability test results indicate that recycled polyester nonwoven fabric can be used several times because of its reusability features. Originality/value There is no detailed study on the oil sorption features of needle-punched nonwoven fabrics developed from recycled polyester fibers. This study is expected to help in developing fabrics for oil spill cleanups.

scholarly journals Characteristics and oil sorption effectiveness of areca nut husk

2021 ◽  
Vol 4 (2) ◽  
pp. 167
Author(s):  
Nik Khairul Irfan Nik Ab Lah ◽  
Jacquinn Alizcia James Ketek ◽  
Tengku Amran Tengku Mohd
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Control Method ◽  
Heavy Crude Oil ◽  
Areca Nut ◽  
Modern Material ◽  
Oil Sorption ◽  
Heavy Crude ◽  
And Control

Oil spill accident occur due to human carelessness and error during oil transportation, storage, and production of the hydrocarbon. Effect of oil spill can be either short or long term. It is not only affecting the environment but also marine life, economy, and social. Thus, effective recovery and control method must be carefully implemented to minimise the effect. There are various studies and technologies to mitigate the oil spill incident but mostly the techniques are very expensive, difficult and use of non-environmental friendly material. Hence, this study is conducted to study areca nut husk as a potential oil adsorbent for oil spill recovery. The characteristics of areca nut husk include morphological structures and chemical composition. The areca nut husk oil sorption effectiveness and capacity also been investigated. Areca nut husk were tested for both heavy crude oil and diesel adsorption. The result shows that the efficiency of oil sorption of areca nut husk toward heavy crude oil is 14.8% and it can be an alternative sorbent material to the current modern material. Meanwhile, the areca nut husk is not recommended to be used for diesel absorption activity for its low effectiveness (i.e., 2.04%) showed in this study. 

scholarly journals The Influences of Hydrophilic Finishing of PET Fibers on the Properties of Hydroentangled Nonwoven Fabrics

2010 ◽  
Vol 5 (4) ◽  
pp. 155892501000500 ◽  
Author(s):  
Wang Hong ◽  
Pang Lianshun ◽  
Jin Xiangyu ◽  
Yin Baopu ◽  
Wu Haibo
Keyword(s):  
Nonwoven Fabric ◽  
Polyester Fiber ◽  
Nonwoven Fabrics ◽  
Polyester Fibers ◽  
Pet Fibers

Common polyester fibers are hydrophobic in nature. Thus it is hard to process the fibers in the hydroentangled nonwoven process and the resultant nonwoven fabric is hydrophobic as well. In this paper, two kinds of polyester fibers treated with different hydrophilic finishing agents and one common polyester fiber were formed into nonwoven fabrics by using hydroentanglement process. The influences of the hydrophilic and friction properties of the PET fibers on the properties of hydroentangled nonwoven fabrics were studied.

scholarly journals Acetylated African Oil Bean Seed Pod For Crude Oil Spill Mop

2022 ◽  
Author(s):  
Amalachukwu Ifeyinwa Obi ◽  
Vincent Ishmael Ajiwe
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Bet Surface Area ◽  
Bean Seed ◽  
Oil Sorption ◽  
Solid Mixture ◽  
Controlling Mechanism ◽  
Kinetic And Thermodynamic Studies ◽  
Crude Oil Spill

Abstract Oil spill remediation has continued to be a challenge in the world today. Thus efforts are still been made to develop more efficient oil spill mop up techniques. Natural adsorption with agricultural wastes, which otherwise constitute environmental pollution, has become an attractive technique for oil spill mop. Acetylation using acetic anhydride with iodine catalyst was carried out to improve the hydrophobicity of African oil bean seed pod (AOBSP), which is a lignocellulosic material and as such is naturally hydrophilic. Characterization of the raw and acetylated AOBSP were done using SEM, BET and FTIR analyses. Batch crude oil sorption tests were performed using both the raw and acetylated AOBSP. Isotherm, kinetic and thermodynamic studies were also carried out. FTIR analysis showed evidence of successful acetylation of AOBSP and adsorption of crude oil onto the raw and acetylated AOBSP. SEM and BET analyses showed improvement of the surface properties of AOBSP by the acetylation process. The BET surface area increased from 226.4 m2/g for the raw AOBSP to 310.0 m2/g for the acetylated AOBSP. Oil sorption was found to be by monolayer coverage, with monolayer sorption capacity of 5000mg/g and 12500mg/g for raw and acetylated AOBSP, respectively. The rate-controlling mechanism for the sorption processes was chemisorption. Negative values of ΔGo, ΔHo and ΔSo were obtained, showing that the sorption processes were feasible, spontaneous and exothermic, with a degree of orderliness at the solid–mixture interface. The results obtained from this study show that both raw and acetylated AOBSP are efficient oil sorbents with potentials for further improvement for oil spill mop.

Preparation and characterization of composite fibrous membranes for oil spill cleanup

2019 ◽  
Vol 90 (3-4) ◽  
pp. 313-322
Author(s):  
Xuan Dong ◽  
Yuansheng Zheng ◽  
Binjie Xin ◽  
Lantian Lin ◽  
Fuli Zhang
Keyword(s):  
Oil Spill ◽  
Nonwoven Fabric ◽  
Absorption Capacity ◽  
Oil Absorption ◽  
Oil Retention ◽  
Excellent Mechanical Property ◽  
Fibrous Membranes ◽  
Oil Spill Cleanup ◽  
Composite Fibrous Membranes

In this study, polyacrylonitrile (PAN) electrospun fibrous membranes were manufactured and applied for oil spill cleanup. Two kinds of composite fibrous membranes composed of PAN electrospun fibrous membranes and polyethylene/polyethylene terephthalate (PE/PET) core-shell fiber nonwoven fabric were fabricated. The fibrous structure, mechanical properties and surface wettability for water and oil, as well as oil absorption capacities and dynamic oil retention of the membranes, were investigated in detail. The addition of nonwoven fabric significantly enhanced the tensile strength of the PAN fibrous membranes. The oil absorption mechanisms of different membranes were studied as well. The sandwich structure composite fibrous membranes exhibited excellent mechanical property and oil absorption capacity, making it a promising candidate for treatment of oily wastewater.

Oil spill cleanup by natural fibers: a review

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Viju Subramoniapillai ◽  
Govindharajan Thilagavathi
Keyword(s):  
Sorption Capacity ◽  
Oil Spill ◽  
Natural Fibers ◽  
Critical Parameters ◽  
Extensive Literature ◽  
Content Type ◽  
Oil Sorption ◽  
Oil Sorbents ◽  
Recent Developments ◽  
Oil Spill Cleanup

Purpose In recent years, oil spill pollution has become one of the main problems of environmental pollution. Recovering oil by means of sorbent materials is a very promising approach and has acquired more attention due to its high cleanup efficiency. Compared to synthetic fibrous sorbents, the use of natural fibers in oil spill cleanups offers several advantages including environmental friendliness, degradable features and cost-effectiveness. Therefore, studies on developing sorbents using natural fibers for oil spill cleanup applications have become a research hotspot. Design/methodology/approach This paper reviews the work conducted by several researchers in developing oil sorbents from fibers such as cattail, nettle, cotton, milkweed, kapok, populous seed fiber and Metaplexis japonica fiber. Some featured critical parameters influencing the oil sorption capacity of fibrous substrates are discussed. Oil sorption capacity and reusability performance of various fibers are also discussed. Recent developments in oil spill cleanups and test methods for oil sorbents are briefly covered. Findings The main parameters influencing the oil sorption capacity of sorbents are fiber morphological structure, fiber density (g/cc), wax (%), hollowness (%) and water contact angle. An extensive literature review showed that oil sorption capacity is highest for Metaplexis japonica fiber followed by populous seed fiber, kapok, milkweed, cotton, nettle and cattail fiber. After use, the sorbents can be buried under soil or they can also be burned so that they can be vanished from the surface without causing environmental-related issues. Originality/value This review paper aims to summarize research studies conducted related to various natural fibers for oil spill cleanups, fiber structural characteristics influencing oil sorption and recent developments in oil spill cleanups. This work will inspire future researchers with various knowledge backgrounds, particularly, from a sustainability perspective.

scholarly journals Hydrocarbon-Degrading Bacteria Exhibit a Species-Specific Response to Dispersed Oil while Moderating Ecotoxicity

2015 ◽  
Vol 82 (2) ◽  
pp. 518-527 ◽  
Author(s):  
Will A. Overholt ◽  
Kala P. Marks ◽  
Isabel C. Romero ◽  
David J. Hollander ◽  
Terry W. Snell ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Environmental Protection Agency ◽  
Synergistic Effects ◽  
Bacterial Species ◽  
Specific Response ◽  
Oil Degradation ◽  
Content Type ◽  
Dispersed Oil ◽  
Degrading Bacteria

ABSTRACTThe Deepwater Horizon blowout in April 2010 represented the largest accidental marine oil spill and the largest release of chemical dispersants into the environment to date. While dispersant application may provide numerous benefits to oil spill response efforts, the impacts of dispersants and potential synergistic effects with crude oil on individual hydrocarbon-degrading bacteria are poorly understood. In this study, two environmentally relevant species of hydrocarbon-degrading bacteria were utilized to quantify the response to Macondo crude oil and Corexit 9500A-dispersed oil in terms of bacterial growth and oil degradation potential. In addition, specific hydrocarbon compounds were quantified in the dissolved phase of the medium and linked to ecotoxicity using a U.S. Environmental Protection Agency (EPA)-approved rotifer assay. Bacterial treatment significantly and drastically reduced the toxicity associated with dispersed oil (increasing the 50% lethal concentration [LC50] by 215%). The growth and crude oil degradation potential ofAcinetobacterwere inhibited by Corexit by 34% and 40%, respectively; conversely, Corexit significantly enhanced the growth ofAlcanivoraxby 10% relative to that in undispersed oil. Furthermore, both bacterial strains were shown to grow with Corexit as the sole carbon and energy source. Hydrocarbon-degrading bacterial species demonstrate a unique response to dispersed oil compared to their response to crude oil, with potentially opposing effects on toxicity. While some species have the potential to enhance the toxicity of crude oil by producing biosurfactants, the same bacteria may reduce the toxicity associated with dispersed oil through degradation or sequestration.

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

2021 ◽  
Author(s):  
Larissa S. Martins ◽  
Noelle C. Zanini ◽  
Alexandre L. S. Botelho ◽  
Daniella R. Mulinari
Keyword(s):  
Crude Oil ◽  
Oil Sorption ◽  
Plastic Bags

scholarly journals A Textile Waste Fiber-Reinforced Cement Composite: Comparison between Short Random Fiber and Textile Reinforcement

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3742
Author(s):  
Payam Sadrolodabaee ◽  
Josep Claramunt ◽  
Mònica Ardanuy ◽  
Albert de la Fuente
Keyword(s):  
Construction Material ◽  
Drying Shrinkage ◽  
Cement Composite ◽  
Nonwoven Fabric ◽  
Textile Waste ◽  
Nonwoven Fabrics ◽  
Potential Applications ◽  
Reinforced Cement ◽  
The One ◽  
Garment And Textile

Currently, millions of tons of textile waste from the garment and textile industries are generated worldwide each year. As a promising option in terms of sustainability, textile waste fibers could be used as internal reinforcement of cement-based composites by enhancing ductility and decreasing crack propagation. To this end, two extensive experimental programs were carried out, involving the use of either fractions of short random fibers at 6–10% by weight or nonwoven fabrics in 3–7 laminate layers in the textile waste-reinforcement of cement, and the mechanical and durability properties of the resulting composites were characterized. Flexural resistance in pre- and post-crack, toughness, and stiffness of the resulting composites were assessed in addition to unrestrained drying shrinkage testing. The results obtained from those programs were analyzed and compared to identify the optimal composite and potential applications. Based on the results of experimental analysis, the feasibility of using this textile waste composite as a potential construction material in nonstructural concrete structures such as facade cladding, raised floors, and pavements was confirmed. The optimal composite was proven to be the one reinforced with six layers of nonwoven fabric, with a flexural strength of 15.5 MPa and a toughness of 9.7 kJ/m2.

Volatility integration of gold and crude oil prices with the interest rates in India

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shailesh Rastogi ◽  
Adesh Doifode ◽  
Jagjeevan Kanoujiya ◽  
Satyendra Pratap Singh
Keyword(s):  
Interest Rate ◽  
Crude Oil ◽  
Interest Rates ◽  
Global Economy ◽  
Spillover Effect ◽  
Price Volatility ◽  
Volatility Spillover ◽  
Content Type ◽  
Crude Oil Prices ◽  
The Impact

PurposeCrude oil, gold and interest rates are some of the key indicators of the health of domestic as well as global economy. The purpose of the study is to find the shock volatility and price volatility effects of gold and crude oil market on interest rates in India.Design/methodology/approachThis study finds the mutual and directional association of the volatility of gold, crude oil and interest rates in India. The bi-variate GARCH models (Diagonal VEC GARCH and BEKK GARCH) are applied on the sample data of gold price, crude oil price and yield (interest rate) gathered from November 30, 2015 to November 16, 2020 (weekly basis) to investigate the volatility association including the volatility spillover effect in the three markets.FindingsThe main findings of the study focus on having a long-term conditional correlation between gold and interest rates, but there is no evidence of volatility spillover from gold and crude oil on the interest rates. The findings of the study are of great importance especially to the policymakers, as they state that the fluctuations in prices of gold and crude oil do not adversely impact the interest rates in India. Therefore, the fluctuations in prices of gold and crude may generally impact the economy, but it has nothing to do with interest rate in particular. This implies that domestic and foreign investments in the country will not be affected by gold and crude oil that are largely driven by interest rates in the country.Practical implicationsGold and crude oil are two very important commodities that have their importance not only for domestic affairs but also for international business. They veritably influence the economy including forex exchange for any nation. In addition to this, the researchers believe the findings will provide insights to policymakers, stakeholders and investors.Originality/valueGold and crude oil undoubtedly influence the exchange rates but their impact on the interest rates in an economy is not definite and remains ambiguous owing to the mixed findings of the studies. The lack of studies related to the impact of gold and crude oil on the interest rates, despite them being essentials for the health of any economy is the main motivation of this study. This study is novel as it investigates the volatility impact of crude oil and gold on interest rates and contributes to the existing literature with its findings.

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