Flux and retention analysis during micellar enhanced ultrafiltration for the removal of phenol and aniline

Jadhav, Swapnil R.; Verma, Nishith; Sharma, Ashutosh; Bhattacharya, Paramita

doi:10.1016/s1383-5866(01)00154-x

Cited by 89 publications

(42 citation statements)

References 21 publications

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“…(14)- (17 (R G ) and total resistances (R T ) presented in Fig. 3 reveal that the resistance is mainly due to building-up of a polarization layer, and the polarization layer resistance increases with decreasing MWCO.…”

Section: Effects Of Membrane Pore Size On Filtration Parametersmentioning

confidence: 92%

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Investigation of parameters affecting the ultrafiltration of oil-in-water emulsion wastewater

Kiss

Kertész

Beszédes

et al. 2013

Desalination and Water Treatment

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Section: Effects Of Membrane Pore Size On Filtration Parametersmentioning

confidence: 92%

“…The solute mass transfer coefficient was calculated from the following correlations [17,18]: where Re ¼…”

Section: Fouling Models 221 Filtration Lawsmentioning

confidence: 99%

Investigation of parameters affecting the ultrafiltration of oil-in-water emulsion wastewater

Kiss

Kertész

Beszédes

et al. 2013

Desalination and Water Treatment

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“…Based on the polarity of the used solvents, dichloromethane and butanol fractions probably contain free withanolides and glycowithanolides, respectively [19], while none of the tested extracts and fractions contained tannins or alkaloids.…”

Section: Resultsmentioning

confidence: 99%

In vitro antiplasmodial activity of Withania frutescens —Solanaceae

Bouzidi

Bakrim

Mahiou

et al. 2017

European Journal of Integrative Medicine

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A B S T R A C TIntroduction: Drugs resistant Plasmodium falciparum is a recurring issue that threatens public health. New anti-plasmodial drugs are needed to overcome this problem. The aim of this study was to characterize in vitro an-tiplasmodial activity of Withania frutescens (Solanaceae) against chloroquine-resistant Plasmodium falciparum strain. Methods: The in vitro antiplasmodial activity of leaves and roots extracts from Withania frutescens was performed in 96 well plates and preliminary phytochemical analysis was performed for the active fractions. The toxicity of the plant extract against CHO (Chinese Hamster Ovary) cells was assessed using the tetrazolium salt MTT col-orimetric assay. The selectivity index (SI) was calculated as the ratio between the cytotoxic and antiparasitic activities. Results: The methanol extract of W. frutescens leaves showed a good antiplasmodial activity (CC 50 18.1 μg/ml). Furthermore, ethyl acetate and butanol fractions showed promising in vitro antiplasmodial activity with a se-lectivity index of 3.1 and 2.4, respectively. The roots of W. frutescens were found to be inactive with a CC 50 value > 80 μg/ml. Conclusion: The antiplasmodial activity of W. frutescens may in part be attributed to the presence of polyphenolic and flavonoid compounds. Based on our results, ethyl acetate and butanol leaves fractions could be considered as a promising source for the development of putative antiplasmodial drugs.

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“…To ensure micellar presence, the surfactant concentration range investigated was 1-20 wt%, significantly above the CMC for all three surfactants at the low end, and at the solubility limit for CPC at the high end. The results of these investigations are explained in terms of models developed previously to describe FO [20] and UF [21,22] processes.…”

Section: Introductionmentioning

confidence: 93%

“…Previous studies have shown that a marginal decline in flux occurs during the initial stages of an ultrafiltration run before attaining a steady-state value [14,21,29] …”

Section: Ultrafiltrationmentioning

confidence: 99%

Use of Micellar Solutions as Draw Agents in Forward Osmosis

Roach¹,

Al‐Abdulmalek²,

Al-Naama³

et al. 2014

J Surfact & Detergents

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Recent advances in membrane technologies have enhanced the viability of water treatment strategies that employ semipermeable barriers. Forward osmosis (FO), which exploits the natural osmotic pressure gradient between a ''draw'' solution and a ''feed'' solution to produce potable water, offers a low-energy, low-cost alternative to more conventional treatment methods. Surfactants, because of their tendencies to aggregate into micelles and to adsorb at interfaces, provide intriguing osmotic pressures and offer exploitable properties by which draw solutions can be regenerated. The effectiveness of surfactant-based FO using cellulose triacetate membranes has been assessed in terms of water flux and reverse surfactant diffusion using cetylpyridinium chloride, sodium dodecylsulfate, and Triton X-100. The ratios of water flux to surfactant flux exceeded 600 L mol -1 for all surfactants studied. Surfactant recoveries of over 99 % were achieved by ultrafiltration using regenerated cellulose membranes.

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Flux and retention analysis during micellar enhanced ultrafiltration for the removal of phenol and aniline

Cited by 89 publications

References 21 publications

Investigation of parameters affecting the ultrafiltration of oil-in-water emulsion wastewater

Investigation of parameters affecting the ultrafiltration of oil-in-water emulsion wastewater

In vitro antiplasmodial activity of Withania frutescens —Solanaceae

Use of Micellar Solutions as Draw Agents in Forward Osmosis

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