Preparation of an Efficient Oil-Spill Adsorbent Based on Wheat Straw

Lv, Ermeng; Xia, Wuyang; Tang, Mingxiao; Pu, Yuewu

doi:10.15376/biores.12.1.296-315

Cited by 13 publications

(14 citation statements)

References 21 publications

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“…e oil contained in the fiber lumen and the interfiber interstices drained out slowly, as the capillary pressure and the van der Waals forces were insufficient to hold the weight of the oil [50,51]. Moreover, it could be also attributed to the formation of agglomerates between the fibrous sorbents and the first adsorbed layer of crude oil, while the following adsorbed crude oil layers were leaked due to their weak adsorption to the fibers [53]. On a separate experiment, slow addition of crude oil to pure PS fibrous sorbents showed this pattern of initial agglomeration due to the strong adsorption of the oil onto/into the fibers and the eventual solvation of the fibers by the adsorbed oil, as discussed in Figure 6.…”

Section: Evaluation Of Oil Uptake Capacitymentioning

confidence: 99%

Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills

Alnaqbi

Blooshi

Greish

2020

Advances in Polymer Technology

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Polymers provide a wide range of properties, and these properties can be greatly enhanced and modified through polymer blending. Polymer blending combines the properties and advantages of their original polymers. is paper showcases hydrophobic polymers prepared through polymer blending; these blends are characterized and evaluated for their efficiency in the removal of crude oil spills from aqueous media. e application of these blends holds a great deal of importance in preserving the environment and the recovery of lost oil in spills. e blends are produced using polystyrene (PS) as the matrix polymer and individually blending poly(vinyl chloride) (PVC) and polyethylene (PE) with the PS consisting of proportions of 5-20 wt.% each. e blends are then electrospun into bead-free microfibers with interconnected porosities as shown by their respective scanned electron micrographs. All fibrous sorbents showed a high affinity towards the removal of crude oil, motor oil, and diesel spills. e highly viscous motor spill showed a different pattern of sorption onto fibers than that of crude oil and diesel spills. Upon comparing all the studied electrospun fibers to commercially available polypropylene fibrous sorbents, results show that the sorption efficiency of the electrospun fibers is superior. Most notably, both PS-PE5 and PS-PVC5 fibers showed to be highly more effective than commercially available polypropylene (PP) sorbents towards all types of oil spills.

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Section: Evaluation Of Oil Uptake Capacitymentioning

confidence: 99%

Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills

Alnaqbi

Blooshi

Greish

2020

Advances in Polymer Technology

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“…The draining in the extra -lumen liquids occur because the capillary pressure was insufficient to hold the weight of the oils retained in the sorbent [35]. The pretreated sample (RAS and PFAS) has higher retention capacity than the raw sample (CAS) because it has more stability of capillary pressure within the materials hence the edge in oil retention capacity [36] and the oil bridges formed among the bundles would have been easier to destabilized in the raw sample [37].…”

Section: Oil Retention Of Sorbentmentioning

confidence: 99%

Utilization of Annona senegalensis as a Sorbent for THE Removal of Crude Oil from Aqueous Media

Dimas

Osemeahon

2021

JENRR

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In the present study, the efficiency of Annona senegalensis fiber to remove crude oil from aqueous solution was evaluated. The crude Annona senegalensis (CAS), retted Annona senegalensis (RAS) and bleach Annona senegalensis (PFAS) were subjected to sorption studies to optimize their sorption capacity. The results revealed that the efficiency of sorbent to remove crude oil from water is related to the sorbent weight, contact time, initial oil concentration and temperature of sorption. It was found out that increase in sorbent weight led to increase in sorption capacity from 3.99-5.25g/g, 5.51-7.12g/g, and 5.01-6.72g/g in CAS, RAS and PFAS respectively. Increased in Initial oil concentration also increased the oil sorption capacity by 20-21% until it reach equilibrium. Sorption time was varied from 10, 20, 30, 40, 50, 60 and 70 minutes and the highest sorption capacity was recorded at 30 minutes before a gradual decreased was observed. Sorption capacity decreased with increased in temperature above 400C. The sorbent exhibited good reusability after 8 cycles, with less than 50 % reduction in sorption capacity. The kinetics of crude oil sorption onto CAS, RAS and PFAS follow the second- order model with correlation coefficients higher than 0.99. The results obtained revealed that crude oil adsorption onto the Annona senegalensis fiber can be used as an effective adsorbent to oil spill cleanup in water bodies.

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“…The ATR-FTIR spectra of the unmodified (CJDC) and modified Mandacaru CJDC-µE1 are presented in Figure 2. The FT-IR spectrum of the CJDC had a peak at 3376 cm -1 that was assigned to O-H stretching vibration of the adsorbed water molecules on the surface of the material (Boni et al, 2016;Lv, Xia, Tang, & Pu, 2017). The peaks at 2926 and 2854 cm -1 corresponded to C-H vibrations, specifically aliphatic CH 2 and CH 3 (Likon, Remškar, Ducman, & Švegl, 2013;Boni et al, 2016;Lv et al, 2017), while the peaks at 1630 and 1734 cm -1 were characteristic of the presence of conjugated and unconjugated carbonyl groups (C = O), respectively.…”

Section: Atr-ftir Analysismentioning

confidence: 99%

“…The FT-IR spectrum of the CJDC had a peak at 3376 cm -1 that was assigned to O-H stretching vibration of the adsorbed water molecules on the surface of the material (Boni et al, 2016;Lv, Xia, Tang, & Pu, 2017). The peaks at 2926 and 2854 cm -1 corresponded to C-H vibrations, specifically aliphatic CH 2 and CH 3 (Likon, Remškar, Ducman, & Švegl, 2013;Boni et al, 2016;Lv et al, 2017), while the peaks at 1630 and 1734 cm -1 were characteristic of the presence of conjugated and unconjugated carbonyl groups (C = O), respectively. These peaks likely originated from carboxylic acids and ketones from hemicellulose and lignin (Adebajo & Frost, 2004;Barka, Ouzaouit, Abdennouri, & Makhfouk, 2013;Zhang, Yang, Wu, Yuan, & Sun, 2014).…”

Section: Atr-ftir Analysismentioning

confidence: 99%

Study of Mandacaru (Cereus jamacaru DC), in natura and modified by microemulsion, as a biosorbent for diesel oil

Anjos

Juviniano

et al. 2020

Acta Sci Technol

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Biosorbents have emerged as an alternative to remove organic contaminants because they are natural products with a high availability, low cost, biodegradability, and good sorption capacity. The Mandacaru (Cereus jamacaru DC) was investigated as sorbent of diesel, and compared with the Mandacaru modified with microemulsions. The sorbents were also submitted to a physycal-chemical characterization for FT-IR, TG/DTG, MEV and CHN-O. The granulometry range 500-150 µm of the Mandacaru particulate, this was the granulometry range chosen as the standard one, being used in the modification and sorption tests. The unclassified Mandacaru presented a medium sorption capacity of the diesel oil of 1.61 g g-1. Whereas the Mandacaru modified with a microemulsion comprised of direct micelles (oil/water) showed a remarkable increase in the sorption capacity of 80-111% (3,08 to 3,54 g g-1).

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Preparation of an Efficient Oil-Spill Adsorbent Based on Wheat Straw

Cited by 13 publications

References 21 publications

Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills

Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills

Utilization of Annona senegalensis as a Sorbent for THE Removal of Crude Oil from Aqueous Media

Study of Mandacaru (Cereus jamacaru DC), in natura and modified by microemulsion, as a biosorbent for diesel oil

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