Bio-based dispersants for fuel oil spill remediation based on the Hydrophilic-Lipophilic Deviation (HLD) concept and Box-Behnken design

Nawavimarn, Parisarin; Rongsayamanont, Witchaya; Subsanguan, Tipsuda; Luepromchai, Ekawan

doi:10.1016/j.envpol.2021.117378

Cited by 11 publications

(4 citation statements)

References 47 publications

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“…Oils mainly composed of these compounds disperse inefficiently when dispersants were used for dispersion. The same findings were reported by Zhu et al and Nawavimarn et al, indicating that the micellar mechanism and dispersion efficacy were improved by the synergistic impact of various surfactant agents (such as chemical and biological surfactants, and ionic liquids). It is considered that light oil is the ideal medium for dispersants to work best …”

Section: Results and Discussionmentioning

confidence: 99%

Formulation and Optimization of Effective Oil Spill Dispersants Composed of Surface-Active Ionic Liquids and Nonionic Surfactants

Nazar,

Ahmad,

Hussain

et al. 2024

ACS Omega

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The use of chemical dispersants to remove oil spills in aquatic environments raises serious concerns, including heightened toxicity and limited biodegradability, which diminish their effectiveness. This study aimed to develop an environmentally friendly formulation by combining two nonionic surfactants (Tween 80, Span 80) with two surface-active ionic liquids (SAILs): 1-butyl-3-methylimidazolium lauroyl sarcosinate [Bmim][Lausar] and choline myristate [Cho][Mys], to remediate crude oil spill. The performance of the formulation was evaluated by its emulsion stability, surface tension, interfacial tension (IFT), and effectiveness. The toxicity and biodegradability of the formulation were also assessed to ensure their safe application in aquatic environments. The formulation (F9) exhibited the most stable emulsion, maintaining stability even after 5 h with a critical micelle concentration (CMC) of 3.52 mM. The efficiency of the formulation in dispersing various crude oils (Arab, Ratawi, and Doba) ranged from 70.12 to 93.72%. Acute toxicity tests conducted on zebrafish demonstrated that the formulation, with an LC 50 value of 450 mg L −1 , exhibited practically nontoxicity after 96 h. The formulation showed rapid biodegradability, exceeding 60% within a 28-day testing period. This research presents a promising approach for synthesizing the green formulation which can contribute to mitigating the environmental impacts of oil spills and enhancing the efficiency of cleanup operations.

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Section: Results and Discussionmentioning

confidence: 99%

Formulation and Optimization of Effective Oil Spill Dispersants Composed of Surface-Active Ionic Liquids and Nonionic Surfactants

Nazar,

Ahmad,

Hussain

et al. 2024

ACS Omega

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“…For instance, the study performed by Zhu et al achieved 77% of the dispersion effectiveness for the ANS crude blend by mixing the fish-based lipopeptide bio dispersant with DOSS. Similarly, Nawavimarn et al found that by using lipopeptides as a biosurfactant with a non-ionic oleochemical, Dehydol LS7TH, the dispersion efficacy of the Arabian light crude oil was achieved by 74.8%. Hence, these findings indicated that our formulation under optimized conditions has higher effectiveness under different environmental conditions.…”

Section: Resultsmentioning

confidence: 99%

Ionic Liquid and Tween-80 Mixture as an Effective Dispersant for Oil Spills: Toxicity, Biodegradability, and Optimization

et al. 2022

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Chemical dispersants are used extensively for oil spill remediation. Most of these dispersants are composed of a mixture of surfactants and organic solvents, which raises concerns about aquatic toxicity and environmental impact. In this study, the toxicity and biodegradability of an oil spill dispersant composed of the surface-active ionic liquid 1-butyl-3-methylimidazolium lauroyl sarcosinate [Bmim][Lausar] and Tween-80 were investigated. In addition, important environmental factors including salinity, temperature, and wave-mixing energy were optimized to obtain maximum dispersion effectiveness. The acute toxicity against zebrafish ( Danio rerio ) showed that the developed dispersant was practically non-toxic with a median lethal dose of more than 100 mg L –1 after 96 h. The dispersant also demonstrated outstanding biodegradability of 66% after 28 days. A model was developed using a response surface methodology that efficiently ( R 2 = 0.992) related the salinity, temperature, and wave-mixing energy of seawater to dispersion effectiveness. The system was then optimized, and a high dispersion effectiveness of 89.70% was obtained with an experimental error of less than 2%. Our findings suggest that the surface-active ionic liquid and Tween-80 mixture could be a viable alternative to toxic chemical dispersants for oil spill remediation.

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“…HLD is essentially a balance, as shown in Figure 14, and is expressed semi-empirically in Equation (11), between the salinity of the system, the Equivalent Alkane Carbon Number (EACN), the temperature, and the Characteristic Curvature (Cc) of the surfactant. When these terms are balanced (optimum formulation), the HLD is zero and the surfactant interacts with the water and oil phases equally [181], and thus the Type III microemulsions form, or Type IV if using an excessive surfactant, which gives the largest reduction of interfacial tension (ultra-low surface tension) and the largest increase in solubility. Due to the drawbacks of the HLB approach and the Winsor R ratio in determining the surfactant formulation procedures [170][171][172][173][174][175], researchers [93,[176][177][178] developed a comparatively recent technique, the hydrophilic-lipophilic deviation, which has garnered substantial acceptance (HLD).…”

Section: Hydrophilic-lipophilic Deviation (Hld)mentioning

confidence: 99%

“…As demonstrated in Figure 14 , HLD is simply a balance between the salinity of the system, the Equivalent Alkane Carbon Number (EACN), the temperature, and the Characteristic Curvature (Cc) of the surfactant. When these terms are balanced (optimal formulation), the HLD is zero, the surfactant interacts equally with the water and oil phases [ 181 ], and Type III microemulsions form, or Type IV if excessive surfactant is used, which results in the greatest reduction of interfacial tension (ultra-low surface tension) and the greatest increase in solubility. Emulsions may be formed and identified based on HLD results, as seen in Figure 15 .…”

Section: Bitumen Emulsion Formulation Toolsmentioning

confidence: 99%

Current Research and Challenges in Bitumen Emulsion Manufacturing and Its Properties

Al-Mohammedawi

Mollenhauer

2022

Materials

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The global increase of road infrastructure and its impact on the environment requires serious attention to develop sustainable and environmentally friendly road materials. One group of those materials is produced by using bitumen emulsion. However, there are still scientific and technical obstacles standing against its regular application. The bitumen emulsion formulation process and compositional optimization are subjected to a high number of degrees of freedom. Consequently, obtaining the desired product is mostly based on a series of random and tedious trials because of the enormous number of tests that are carried out to meet the required properties, such as emulsion stability, viscosity, droplet size (and distribution), and bitumen emulsion chemistry. Several pre-established formulation procedures have been presented in the literature. Some of them have technical limitations to be utilized for practical industrial application, whereas others are still not understood enough to be applied in bitumen emulsion formulation. Therefore, discussing some important issues in this field could be useful to offer a practical guide for bitumen emulsion manufacturers when trying to formulate a well-defined bitumen emulsion to best fit its use in pavement infrastructure rather than to simply to meet standard specifications. This review paper aims to enable the ultimate potential of bitumen emulsion by further reviewing the research progress of bitumen emulsion manufacturing and discussing the literature available up to now on this topic, in the realm of bitumen emulsion manufacturing and emulsion chemistry.

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Bio-based dispersants for fuel oil spill remediation based on the Hydrophilic-Lipophilic Deviation (HLD) concept and Box-Behnken design

Cited by 11 publications

References 47 publications

Formulation and Optimization of Effective Oil Spill Dispersants Composed of Surface-Active Ionic Liquids and Nonionic Surfactants

Formulation and Optimization of Effective Oil Spill Dispersants Composed of Surface-Active Ionic Liquids and Nonionic Surfactants

Ionic Liquid and Tween-80 Mixture as an Effective Dispersant for Oil Spills: Toxicity, Biodegradability, and Optimization

Current Research and Challenges in Bitumen Emulsion Manufacturing and Its Properties

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