Modification of membrane formulation for stabilization of emulsion liquid membrane for extraction of phenol from aqueous solutions

Abbassian, Khalil; Kargari, Ali

doi:10.1016/j.jece.2016.08.030

Cited by 40 publications

(11 citation statements)

References 41 publications

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“…DOPC itself cannot retained the emulsion, thus leads to breakdowns of emulsion. Due to this breakdown, the separation process cannot take place as no medium for diffusion of CO2 to occur in the solution [5]. A cosurfactant that was introduced in this study formed an adhesive emulsion which lead highly stable emulsion.…”

Section: Carbon Dioxide Removalmentioning

confidence: 97%

“…Span 80 has been widely used by previous studies [5]. Two different types of aqueous phase were used, there were the combination of MDEA/AMP and MDEA only.…”

Section: The Effect Of Cosurfactant In Co2 Absorption In Water -In -Omentioning

confidence: 99%

“…The selection of surfactant was based on the HLB number, which the value is less than 5 and non-ionic surfactant such as Span 80 are able to stabilize W/O emulsions [5,6].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Cosurfactant in Co2 Absorption in Water – In – Oil Emulsion

Dali¹,

Kamarudin²

2018

Environ. ecosyst. sci.

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Carbon dioxide is one of the main concern in the environment when it comes to energy usage of fuel, even the fuel is coming from natural gas sources. Apart from endangered the environment, carbon dioxide also affects the caloric value of the natural gas itself. The presence of carbon dioxide as contaminants is a nuisance for oil and gas industry as its capability of forming corrosion in pipeline, thus its removal is vital for this industry. The absorption of carbon dioxide in emulsions would be an effective method to prevent corrosion. This study focused on the effects of cosurfactant, complementing 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) with surfactant which is sorbitan oleate (SPAN 80), on the stability of water-in-oil (W/O) emulsion. This study also investigates the use of blended amines which are methyldiethanolamine (MDEA)/2-amino-2-methyl-1-propanol (AMP) and MDEA as aqueous phase. A modified rotating disk contactor (RDC) was used in absorption process and gas chromatography (GC) was used to determine the amount of the CO2 absorbed. Analysis of carbon dioxide absorption through emulsion indicates that different cosurfactant may change the absorption mechanism.

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Section: Carbon Dioxide Removalmentioning

confidence: 97%

“…Span 80 has been widely used by previous studies [5]. Two different types of aqueous phase were used, there were the combination of MDEA/AMP and MDEA only.…”

Section: The Effect Of Cosurfactant In Co2 Absorption In Water -In -Omentioning

confidence: 99%

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The Effect of Cosurfactant in Co2 Absorption in Water – In – Oil Emulsion

Dali¹,

Kamarudin²

2018

Environ. ecosyst. sci.

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“…In comparison to other treatment technologies, ELMs are considered as much efficient tool for the treatment of industrial wastewater containing various hazardous contaminants including dyes. ELMs provide high surface area which promotes better extraction of the target from source [11]. Another advantage of this technology is the possibility of extraction from very dilute solutions like dye solutions in many cases where dye presents in wastewater in a very small amount [11].…”

Section: Introductionmentioning

confidence: 99%

“…ELMs provide high surface area which promotes better extraction of the target from source [11]. Another advantage of this technology is the possibility of extraction from very dilute solutions like dye solutions in many cases where dye presents in wastewater in a very small amount [11].…”

Section: Introductionmentioning

confidence: 99%

Statistical Modeling for Stability of Emulsion Liquid Membrane for the Removal of Anionic Dyes from Textile Wastewater

Jamshaid

Qureshi

Bhatti

et al. 2018

Mehran Univ. res. j. eng. technol.

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The importance of statistical modeling is obvious because it imparts an imperative role in predicting the effects of significant factors on any experimental process. In recent days, ELMs (Emulsion Liquid Membranes) are considered as an effective technique for the treatment of industrial wastewater. Despite of many advantages over the other treatment methods, ELM technology encounters one serious drawback of the stability of emulsion. The subject of this research is to identify the factors which are important to study the stability of ELM and also to evaluate the response of these parameters on stability. The membrane used in this study consisted of Span-80 and Hexane as surfactant and diluent respectively. The internal aqueous phase was H 2 SO 4. The experimental setup was designed by using a well-known statistical approach of DoE (Design of Experiment) and the data was analyzed by Taguchi Method using a fractional factorial design. All the parameters including aqueous phase concentration, surfactant concentration, volume ratio of organic to aqueous phase, emulsification speed and emulsification time were selected as key factors to study their effect on the stability of ELM. Using different statistical techniques, it was found that emulsification speed and volume ratio of organic to aqueous phase are two most significant parameters. The significance level of these factors i.e. emulsification speed and volume ratio of organic to aqueous phase was statistically found as 99.7 and 99.9% respectively. A statistical model was also developed and the experimental results were compared with estimated results. The value of correlation coefficient, R 2 was calculated as 0.997 indicating that the developed model fits the data very well.

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