Stability and extraction study of phenolic wastewater treatment by supported liquid membrane using tributyl phosphate and sesame oil as liquid membrane

Kazemi, Pezhman; Peydayesh, Mohammad; Bandegi, Alireza; Mohammadi, Toraj; Bakhtiari, Omid

doi:10.1016/j.cherd.2013.07.023

Cited by 126 publications

(42 citation statements)

References 36 publications

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“…Stability means that no direct connection between the feed and the stripping phase occurs, which leads to non-facilitated transport [31]. Neplenbroek et al [32] showed that the instability in SLM was created by a loss of the membrane phase through the formation of emulsion droplets induced by lateral shear forces.…”

Section: -5 Stability Of Slmmentioning

confidence: 98%

Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane

Zaheri

Abolghasemi

Mohammadi

et al. 2015

Korean J. Chem. Eng.

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Synergistic extraction and separation of Dysprosium (Dy) and Europium (Eu) via supported liquid membrane (SLM) were investigated using mixture of di-2-ethylhexyl phosphoric acid (D2EHPA) and Bis (2,4,4-trimethylpentyl) phosphinic acid (Cyanex272). The results showed that separation of Dy and Eu was highly dependent on the pH of feed solution. Dy can be extracted more than Eu, because the equilibrium constant for Dy using the mixture of D2EHPA and Cyanex272 was greater than that for Eu. Various parameters were optimized to achieve maximum separation factor, namely feed phase pH, carrier concentration and stripping phase concentration. The membrane was stable at six cycles of operation.

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Section: -5 Stability Of Slmmentioning

confidence: 98%

Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane

Zaheri

Abolghasemi

Mohammadi

et al. 2015

Korean J. Chem. Eng.

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“…Complete transformation of phenol was achieved only with excess oxidant. For example, a molar ratio of 10 (oxidant to phenol) decreased TOC by 57 % for K 2 FeO 4 , 70 % for permanganate, and 61 % for Ca(Cl0) 2 . The reaction of ferrate (VI) and phenol followed first-order kinetics with respect to both reactants and was not influenced by the presence of impurities.…”

Section: Chemical Oxidationmentioning

confidence: 99%

“…Indirect oxidation takes advantage of intermediary redox reagents to effect electron transfer between electrode and pollutant, thereby preventing electrode fouling by contaminants. The presence of chloride ions enhances removal of phenolic compounds through the formation of Cl 2 Gupta et al studied interaction of the most influential parameters on degradation of 2,4-dinitrophenol in both batch and continuous-flow reactors using a PbO 2 electrode coated on steel. Their statistical optimization found pH 6.59, NaCl concentration of 1.12 g/L, and current of 1.44 mA/cm 2 predicted 94.2 % chemical oxygen demand (COD) removal in a batch reactor, which was confirmed by obtaining 93.9 % COD removal experimentally.…”

Section: Electrochemical Oxidationmentioning

confidence: 99%

“…Phenolic compounds are present in the effluents of various industries such as oil refining, petrochemicals, pharmaceuticals, coking operations, resin manufacturing, plastics, paint, pulp, paper, and wood products [1][2][3]. Discharge of these compounds without treatment may lead to serious health risks to humans, animals, and aquatic systems [1].…”

Section: Introductionmentioning

confidence: 99%

“…International regulatory bodies have set strict discharge limits for phenols for a sustainable environment [1]. For example, the EPA has set a water purity standard of less than 1 ppb for phenol in surface water [2]. The toxicity levels usually are in the range 9-25 mg/L for both humans and aquatic life [6].…”

Section: Introductionmentioning

confidence: 99%

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A Short Review of Techniques for Phenol Removal from Wastewater

et al. 2016

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Phenolic compounds are priority pollutants with high toxicity even at low concentrations. In this review, the efficiency of both conventional and advanced treatment methods is discussed. The applicability of these treatments with phenol and some common derivatives is compared. Conventional treatments such as distillation, absorption, extraction, chemical oxidation, and electrochemical oxidation show high efficiencies with various phenolic compounds, while advanced treatments such as Fenton processes, ozonation, wet air oxidation, and photochemical treatment use less chemicals compared to the conventional ones but have high energy costs. Compared to physicochemical treatment, biological treatment is environmentally friendly and energy saving, but it cannot treat high concentration pollutants. Enzymatic treatment has proven to be the best way to treat various phenolic compounds under mild conditions with different enzymes such as peroxidases, laccases, and tyrosinases.

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Spectroscopic, thermodynamic and ultrasonic properties of pseudo‐binary mixtures of organic extractants and vegetable oil at 25–60°C under atmospheric pressure

Sarkar

Mondal

Beriya

et al. 2021

Asia-Pacific J Chem Eng

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This work is intended to investigate the molecular interactions and transport properties of five pseudo‐binary mixtures of various combinations of vegetable oils (sesame oil and sunflower oil) and organic extractants (Aliquat 336, TBP, D2EHPA and TOA) by determining their surface tension, density and viscosity over a temperature range of 25–60°C at atmospheric pressure. The experimental data are fitted into various literature models. Information on excess molar volume and viscosity deviation leads to an understanding of solute–solvent interactions. Further, the ultrasonic velocity, isentropic compressibility, intermolecular free length, specific impedance, apparent molar volume, volumetric thermal expansion coefficient, excess Gibbs' free energy, change in enthalpy of mixing and entropy of activation of the liquids have been calculated. A model relating the surface tension, density and viscosity of the pseudo‐binary mixtures has been proposed in this paper. Analysis of Fourier transform infrared (FTIR) studies has further illustrated the intermolecular interactions in the pseudo‐binary mixtures.

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Stability and extraction study of phenolic wastewater treatment by supported liquid membrane using tributyl phosphate and sesame oil as liquid membrane

Cited by 126 publications

References 36 publications

Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane

Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane

A Short Review of Techniques for Phenol Removal from Wastewater

Spectroscopic, thermodynamic and ultrasonic properties of pseudo‐binary mixtures of organic extractants and vegetable oil at 25–60°C under atmospheric pressure

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