Oil absorption and desorption by polypropylene fibers

Oil spill is a threat to the ecosystem, and there is a need for the development of highly efficient oil sorbents for environmental remediation. In this study, four different types of polypropylene fibers were evaluated for their oil absorbency and desorption characteristics. These fibers varied in their fineness and structural characteristics, i.e., hollow or solid. A modified ASTM methodology was used in the study to better represent the oil sorption capacity of a sorbent. To the best of our knowledge, this is the first study to present the effect of fiber fineness and structure on the oil desorption behavior of polypropylene fibers. Results showed that finer fibers had higher oil sorption capacity (g/g) than the coarser fibers. There was no statistical difference in the rate of desorption among the solid fibers; however, the hollow fiber had a statistically higher rate of desorption than the solid fibers.

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Sorption Capacity of New Type Oil Absorption Felt for Potential Application to Ocean Oil Spill

Procedia Environmental Sciences ◽

10.1016/j.proenv.2011.09.137 ◽

2011 ◽

Vol 10 ◽

pp. 849-853 ◽

Cited By ~ 11

Author(s):

Xiaowen Qi ◽

Zhining Jia ◽

Yulin Yang ◽

Hong liu

Keyword(s):

Sorption Capacity ◽

Oil Spill ◽

Potential Application ◽

Oil Absorption ◽

New Type

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Effect of Micronaire on Oil Sorption Capacity of Three Different Types of Greige Cotton-Based Nonwoven Substrates

AATCC Journal of Research ◽

10.14504/ajr.4.2.1 ◽

2017 ◽

Vol 4 (2) ◽

pp. 1-9 ◽

Cited By ~ 4

Author(s):

Vinitkumar Singh ◽

Paul Sawhney ◽

Michael Reynolds ◽

Brian Condon ◽

Ronald Kendall Jr. ◽

...

Keyword(s):

Sorption Capacity ◽

Oil Sorption ◽

Different Types

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Hibiscus Asper (Raman Kogi) Fibre Use as a Sorbent for Oil Spill Clean in Water Body

Archives of Current Research International ◽

10.9734/acri/2019/v17i130103 ◽

2019 ◽

pp. 1-11

Author(s):

N. E. Alpha ◽

J. T. Barminas ◽

S. A. Osemeahon

Keyword(s):

Sorption Capacity ◽

Oil Spill ◽

Adsorption Process ◽

Freundlich Isotherm ◽

Solvent System ◽

Oil Sorption ◽

Acetyl Group ◽

Ft Ir ◽

Material Evidence ◽

Better Than

This research aimed at investigating the possibility of using Imperata cylindrical fibre as a sorbent for oil spill clean-up. The acetylation was carried out in a free solvent system under mild conditions using acetic anhydride, in the presence of calcium chloride as a catalyst, at a temperature of 100oC for 3 hours. The crude oil and the Hibiscus asper sorbent were characterised, the sorption behaviours studied were found to increase with an increase in weight per gain percent (WPG%). The WPG% and oil sorption capacity indicated the success of acetylation. Fourier transform infrared spectroscopy (FT-IR) was used for the analysis of unmodified and modified Hibiscus asper sorbent to further examine the success of acetylation. In the spectra of FT-IR of the acetylated Hibiscus asper material evidence of acetylation is clearly proven by, the enhancement of 1755 cm-1, as 1755.31-1715.97 cm-1 which are carbonyl C=O stretching of esters, the enhancement of 1494.97 -1403.35 cm-1 of (C-H bond in –O(C=O)-CH3 and the appearance of 1154.69- 1154.43 cm-1 which is a C=O stretching of acetyl group. The values for the correlation coefficient (R2) showed that the model fitted the Langmuir isotherm (R2 Hibiscus asper 0.99) better than the Freundlich isotherm, indicating that the adsorption process was a monolayer. The higher oil sorption capacity shown by the modified Hibiscus asper sorbent compared to the lower oil sorption capacity of unmodified indicated that the modified Hibiscus asper sorbent can substitute for synthetic fibres and recommended for oils spill clean-up in contaminated environments.

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Study of Packing Density and Temperature on the Oil Sorption Capacity of Packed Local Kapok Fiber as Bio-oil Spill Absorbent

Biosciences Biotechnology Research Asia ◽

10.13005/bbra/966 ◽

2012 ◽

Vol 9 (1) ◽

pp. 53-61 ◽

Cited By ~ 4

Author(s):

O.O. Sulaiman

Keyword(s):

Sorption Capacity ◽

Oil Spill ◽

Packing Density ◽

Kapok Fiber ◽

Oil Sorption ◽

Bio Oil

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Blended Polypropylene Fiber of Various MFR via a Melt-Blowing Device for Oil Spill Cleanup

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.624.669 ◽

2014 ◽

Vol 624 ◽

pp. 669-672 ◽

Cited By ~ 1

Author(s):

Xiao Hua Meng ◽

Hui Hui Wu ◽

Yong Chun Zeng

Keyword(s):

Sorption Capacity ◽

Oil Spill ◽

Material Properties ◽

Polypropylene Fiber ◽

Contact Angle Measurement ◽

Angle Measurement ◽

Melt Blowing ◽

Oil Sorption ◽

Oil Spill Cleanup ◽

Scanning Electron

PP fibers are commonly used for oil spill cleanup. In order to improve the oil-sorption capacity of the PP fibers, the blended PP fiber of various MFR and unblended PP fiber of certain MFR were fabricated as sorbents by a swirl die melt-blowing device in this study. The material properties of the PP fibers were examined by scanning electron microscopy and contact-angle measurement. The oil sorption and sorption-desorption tests show that the blended PP fibers have a much higher oil-sorption capacity than the unblended PP fibers and an excellent reusability.

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Oil spill cleanup by natural fibers: a review

Research Journal of Textile and Apparel ◽

10.1108/rjta-03-2021-0031 ◽

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.

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Evaluation of Resistant Starch Quality from Different Types of Banana in Batter Coating Formulation to Reduce Oil Absorption in Fried Food

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i2.21 ◽

2019 ◽

Vol 2 (2) ◽

pp. 115-120

Author(s):

Karissha Fritzi Della ◽

Mutiara Pratiwi ◽

Purwa Tri Cahyana ◽

Maria DPT Gunawan-Puteri

Keyword(s):

Resistant Starch ◽

Extraction Process ◽

Fat Content ◽

Water Retention Capacity ◽

Oil Absorption ◽

Retention Capacity ◽

Fried Food ◽

Musa Paradisiaca ◽

Different Types ◽

Coating Formulation

Fried food is convenient for many people due to its pleasant texture and taste. On the other hand, it comes with the risk of high oil absorption which might lead to certain health problems. Resistant starch (RS) has been known to have a functionality of reducing oil absorption. Three different types of banana: Kepok (Musa paradisiaca formatypica), Raja Bulu (Musa paradisiaca L.) and Ambon (Musa paradisiaca L. var sapientum) were evaluated on its performance when utilized as source of resistant starch especially on their application in reducing oil absorption in fried food. Tempeh was used as the food model. Banana starch (RS2) was isolated through water alkaline extraction process, continued with modification process through three repeated cycles of autoclaving-cooling process to obtain the RS3. RS3 was added into the batter coating formulation at three substitution ratios (10%, 30% and 50%) and then used to coat tempeh before frying. Evaluation of resistant starch in batter and battered productwas conducted on the following parameters: fat content, water retention capacity (WRC), coating pick up and sensory analysis. The result of this study revealed that Raja Bulu showed the most effective result on reducing oil absorption in the food tested. In the three bananas used, the ratio of 50% performed best in coating pick up (highest), WRC (highest) and fat content(lowest) parameters, but not significantly different with the 30% ratio. In terms of sensory acceptance, using Raja Bulu as the selected banana type, 30% of substitution ratio was significantly more preferable by the panelists in crispness, oiliness, and overall acceptance attributes compared to control and other substitution ratios.

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Highly efficient reusable superhydrophobic sponge prepared by a facile, simple and cost effective biomimetic bonding method for oil absorption

Scientific Reports ◽

10.1038/s41598-021-91396-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Jiaqi Wang ◽

Yan Chen ◽

Qinyao Xu ◽

Miaomiao Cai ◽

Qian Shi ◽

...

Keyword(s):

Environmentally Friendly ◽

Absorption Capacity ◽

Oil Absorption ◽

Water Contact ◽

Water Separation ◽

Highly Efficient ◽

Study Results ◽

Different Types ◽

Modification Method ◽

Bonding Method

AbstractSuperhydrophobic sponges have considerable potential for oil/water separation. Most of the methods used for superhydrophobic modification of sponges require toxic or harmful solvents, which have the drawbacks of hazardous to environment, expensive, and complex to utilize. Moreover, the hydrophobic layer on the surface of sponge is often easily destroyed. In this paper, a highly efficient superhydrophobic sponge with excellent reusability was developed by using a facile, simple and environmentally friendly dopamine biomimetic bonding method. Different types of sponges, such as melamine, polyethylene or polyurethane sponge wastes, were used as raw materials to prepare superhydrophobic sponges, which possess the advantages of inexpensive and abundant. The effects of different dopamine polymerization time and different hydrophobic agent dosage on the hydrophobicity and oil absorption capacity of melamine sponges were optimized. The study results showed that the water contact angle of the superhydrophobic sponge could reach 153° with excellent organic solvent absorption capacity of 165.9 g/g. Furthermore, the superhydrophobic sponge retained approximately 92.1% of its initial absorption capacity after 35 reutilization cycles. More importantly, the dopamine biomimetic bonding superhydrophobic modification method can be used for different types of sponges. Therefore, a universally applicable, facile, simple and environmentally friendly superhydrophobic modification method for sponges was developed.

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Efficacy of Inverted Digital Luminescence Radiography in Evaluating Chest Neoplasms

Acta Radiologica ◽

10.1177/028418519103200602 ◽

1991 ◽

Vol 32 (6) ◽

pp. 442-448 ◽

Cited By ~ 6

Author(s):

M. Kehler ◽

U. Albrechtsson ◽

A. Andrésdóttir ◽

P. Hochbergs ◽

H. Lárusdóttir ◽

...

Keyword(s):

Statistical Difference ◽

Digital Images ◽

Left Lung ◽

Roc Curves ◽

Lung Tumors ◽

Chest Radiographs ◽

Contrast Enhanced ◽

Different Types ◽

Digital Chest ◽

Digital Luminescence Radiography

Inverted (positive) digital chest radiographs of patients with lung tumors were compared with commonly used (negative) digital images, consisting of one simulated normal and one contrast enhanced image. The first part of the material consisted of 80 patients of whom 40 had tumors and 40 were normal. Five radiologists with different experience reviewed the examinations. From their answers, ROC curves were constructed. The second part of the material consisted of 100 chest phantom examinations with a simulated tumor in the mediastinum (45 examinations) and/or the left lung (46 examinations). In 31 exposures there was no abnormality. These were reviewed by 3 observers and performed as an ROC study as well. There was no statistical difference between the different types of images or between the observers in the 2 studies.

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