Natural sorbents in oil spill cleanup

Choi, Hyung‐Min; Cloud, Rinn M.

doi:10.1021/es00028a016

Cited by 532 publications

(339 citation statements)

References 4 publications

(10 reference statements)

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“…In the past two decades, the reuse of agricultural byproducts as oil sorbents has received growing attention due to their low cost and biodegradability [3]. Most agricultural byproducts are derived from plants such as bagasse, coir, kenaf, rice straw, sisal, and sawdust, all of which have been investigated for oil spill cleanup applications [4]. The main drawbacks of these plant-derived sorbents are a relatively low oil sorption capacity, low hydrophobicity, and poor buoyancy compared to synthetic sorbents such as polypropylene [5,6].…”

Section: Introductionmentioning

confidence: 99%

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

2011

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Sugarcane bagasse was partially acetylated to enhance its oil‐wicking ability in saturated environments while holding moisture for hydrocarbon biodegradation. The water sorption capacity of raw bagasse was reduced fourfold after treatment, which indicated considerably increased hydrophobicity but not a limited capability to hold moisture for hydrocarbon biodegradation. Characterization results by Fourier transform infrared (FT‐IR), scanning electron microscopy (SEM), X‐ray diffraction (XRD), and surface area analyzer suggested that treated bagasse exhibited enhanced hydrophobicity and surface area. Oil wicking test results indicate that treated bagasse is more effective in wicking oil from highly saturated environments than raw bagasse and suggest that application of this material in remediation of oil spills in highly saturated wetlands is promising.

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Section: Introductionmentioning

confidence: 99%

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

2011

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“…After 60 min of sorption, the oil was drained for 2 min and the wet sorbent was weighed. The oil sorption capacity (Choi and Cloud, 1992) (1) Where, q is the sorption capacity (g/g), m f is the weight of the sorbent after 2 min of drainage (g), m o is the initial weight of the sorbent (g), and m w is the weight of the water (g). It is found that oil without any water is a medium where m w is equal to zero.…”

Section: Methodologies Of Oil Sorption Experimentsmentioning

confidence: 99%

“…Among these methods the sorption process is desirable due to easy handling and availability of variety of adsorbents (Ceylan et al, 2009). Some of the adsorbents widely used in practical applications (Zhu et al, 2011b) are sponges, wool-based nonwoven materials, polyvinyl chloride/ polystyrene fibres, butyl rubber, zeolite, activated carbon, organo clay, hair, wool, straws (Sun et al, 2002), wood (Choi and Cloud, 1992), cotton grass fibre (Suni et al, 2004), pine bark (Haussard et al, 2003), pith bagasse (Hussein et al, 2008), coconut shell (Amuda and Ibrahim, 2006) etc. It has also been shown that some agricultural products such as straws, cellulosic fibre, milk weed, and cotton fiber significantly absorb more oil than the synthetic organic materials used commercially (Sun et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

A study on water hyacinth Eichhornia crassipes as oil sorbent

Rani¹,

Murugan²,

Subramaniam³

et al. 2014

JANS

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Abstract:The sorption of diesel, lubricant and castor oils onto different parts (root, stem and leaf) of the dry biomass water hyacinth was studied at the laboratory scale. The parts of the aquapyte water hyacinth (Eichhornia Crassipes) were characterized by physico-chemical methods and the characteristics were used to elucidate the oil sorption process. Hydrophobicity, wettability (capillarity), buoyancy and sorption capacity of oils in the presence/ absence of water were studied to evaluate the suitability of the sorbent for application. In all the three sorbents, the oil sorption capacity increases with the increase of oil film thickness. However of the three parts, the stem has a greater sorption capacity of 9.3, 7.8 and 11.08 g/g for the three oils such as diesel, lubricant and castor oils respectively, even though the root of water hyacinth showed a higher hydrophobicity and surface area. These sorption capacities are comparable with widely used commercial oil sorbent such as nonwoven polypropylene which has a sorption capacity in the range of 10-16 g/g.

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“…It should be emphasized that the viscosity of spent oil decreases as the temperature augments. 17,21 This suggests that retention of spent oil on the treated bark is related to capillary action. Figure 5a shows the variation of RE's value versus the spent oil concentration in the solution using 2, 3, and 4 g Tb/L.…”

Section: Effect Of Reaction Time Andmentioning

confidence: 99%

Removal of Hydrocarbons from Wastewater Using Treated Bark

Haussard¹,

Gaballah²,

Donato³

et al. 2001

Journal of the Air & Waste Management Association

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This paper explores the possibility of removing hydrocarbons (HCs) and trace elements from synthetic and industrial effluents using treated bark as biosorbent. Coniferous bark was treated either chemically (Tc) or biologically (Tb) to eliminate soluble organic compounds of bark. The removal efficiency (RE) of the HCs from a synthetic oilwater mixture containing spent diesel motor oil exceeds 95% using 2 g/L of treated bark mixed with a synthetic oil-water mixture containing 2 g/L of spent oil. Under these conditions, the retention capacity (RC) was ~1 g HC/g dry substrate. The sorption reaction seems to be quasi-instantaneous, and the retention capacity of spent oil on treated bark increases as the temperature augments. This implies that the retention mechanism is related to the capillary action.

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Natural sorbents in oil spill cleanup

Cited by 532 publications

References 4 publications

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

Partially Acetylated Sugarcane Bagasse for Wicking Oil from Contaminated Wetlands

A study on water hyacinth Eichhornia crassipes as oil sorbent

Removal of Hydrocarbons from Wastewater Using Treated Bark

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