State-of-the-art review on hollow fibre contactor technology and membrane-based extraction processes

Pabby, Anil Kumar; Sastre, Ana Marı́a

doi:10.1016/j.memsci.2012.11.060

Cited by 199 publications

(82 citation statements)

References 241 publications

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“…Ozone is also used to change the surface properties of polymers [18][19][20][21][22] . MacManus et al 20 studied surface modification of polypropylene through ozone and UV exposition, observing improvement in hydrophilicity.…”

Section: Introductionmentioning

confidence: 99%

Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation

2015

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Section: Introductionmentioning

confidence: 99%

Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation

2015

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“…Thus, the simplest liquid-liquid extraction configuration is sufficient for purifying the PTA wastewater, and the PT acid does not need to be recovered from the extractant after NDSE. With the advantages of no emulsification and high extraction efficiency (Pabby and Sastre, 2013), NDSE has been used in many applications, including the chemical separation of pesticides (Đorđević et al, 2014), bisphenol A (Gupta et al, 2014), toluene (Barati et al, 2014), fermentation products , zinc chloride and hydrochloric acid (Lum et al, 2014), 1-butanol and acetone (Moreno et al, 2014), cephalexin (Hao et al, 2014), Co (Vernekar et al, 2013), Lu (Kumrić et al, 2012), U (Dixit et al, 2013), Zn (Samaniego et al, 2007), and Cu (Ren et al, 2008). However, there have been no published studies of NDSE applied to PTA wastewater.…”

Section: Introductionmentioning

confidence: 99%

Non-dispersive solvent extraction of p-toluic acid from purified terephthalic acid plant wastewater with p-xylene as extractant

Kong

Cheng

Wang

et al. 2016

J. Zhejiang Univ. Sci. A

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Non-dispersive solvent extraction (NDSE) with p-xylene as extractant was employed as a novel separation method to recover both p-toluic (PT) acid and water from purified terephthalic acid (PTA) wastewater. The mass transport behavior of PT acid from aqueous solution to p-xylene was investigated by experiments and numerical simulation. Experiments showed that NDSE is feasible and effective. Residual PT acid in the raffinate can be reduced to lower than the permitted limit of wastewater re-use (100 g/m 3 ) with extraction time longer than 60 s in industrial conditions. A mathematical model of PT acid mass transport was developed to optimize the membrane module performance. The model was validated with the experimental results with relative errors of less than 6%. Numerical analysis for mass transfer through the lumen side, the porous membrane layer, and the shell side showed that PT acid transport in the aqueous solution is the rate determining step. The effects of the membrane and operating parameters on membrane module performance were investigated by means of computational simulations. The key parameters suggested for industrial NDSE design are: fiber inner radius r 1 =200-250 μm, extraction time t e =50-60 s, aqueous/ organic volumetric ratio a/o=9.0, and temperature T=318 K.

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“…Extraction processes using emulsion liquid membrane (ELM) have also received significant attention due to their potential application in treating industrial liquid wastes [16][17][18][19][20]. Use of ELMs for hydrometallurgical recovery of heavy metals from waste industrial solutions has been reported by many investigators and some processes have been successfully commercialized to remove various metals from wastewater in industry [21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Copper and Cyanide Extraction with Emulsion Liquid Membrane with LIX 7950 as the Mobile Carrier: Part 1, Emulsion Stability

Chang

Wang

et al. 2015

Metals

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Abstract:The potential use of emulsion liquid membranes (ELMs) with LIX 7950 as the mobile carrier to remove heavy metals from waste cyanide solutions has been proposed. Relatively stable ELMs with reasonable leakage and swelling can be formed under suitable mixing time and speed during emulsification. The concentration of LIX 7950 and Span 80 in the membrane phase, KOH in the internal phase and the volume ratio of membrane to internal phases are also critical to ELM formation. The efficiency of copper and cyanide removal from dilute cyanide solution by ELMs is related to ELM stability to some extent. More than 90% copper and cyanide can be removed from dilute cyanide solutions by ELMs formed under suitable experimental conditions.

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State-of-the-art review on hollow fibre contactor technology and membrane-based extraction processes

Cited by 199 publications

References 241 publications

Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation

Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation

Non-dispersive solvent extraction of p-toluic acid from purified terephthalic acid plant wastewater with p-xylene as extractant

Copper and Cyanide Extraction with Emulsion Liquid Membrane with LIX 7950 as the Mobile Carrier: Part 1, Emulsion Stability

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