Application of the solution-diffusion model for the removal of atrazine using a nanofiltration membrane

Hidalgo, A.M.; León, Gerardo; Gómez, M.; Murcia, M.D.; Barbosa, Dalje Sunith; Blanco, Pedro J.

doi:10.1080/19443994.2012.734720

Cited by 9 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall, the performance of the cross-flow filtration technique using TFC membrane is comparable and in some cases appeared to be better than those reported techniques viz. polyvinylidene fluoride (PVDF) membrane for removal of DDTs (Pang et al 2010), NF 90 for atrazine (Hidalgo et al 2013;Musbah et al 2013), and NF-DK1812 for diuron (Wang et al 2010).…”

Section: Pesticide Removal By Membrane Filtrationmentioning

confidence: 99%

“…High water permeability and rejection of solutes are features that make low-pressure-driven membranes economically viable in water softening applications, attractive for water purification and removal of harmful organic solutes from water (Yangali-Quintanilla et al 2010). Limited studies on removal of some pesticides like herbicides (Wang et al 2010;Riungu et al 2012;Hidalgo et al 2013;Musbah et al 2013;Karimi et al 2016); fungicides (Drazevic et al 2013), and insecticides (Pang et al 2010;Karimi et al 2016) have been reported using RO and NF membranes. The thinfilm composite (TFC) polyamide RO membrane prepared on polysulfone support in our laboratory was evaluated for the removal of only two phenyl urea herbicides (Mehta et al 2015(Mehta et al , 2017.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Removal of multiple pesticide residues from water by low-pressure thin-film composite membrane

et al. 2020

View full text Add to dashboard Cite

The study evaluated removal efficiency of 43 pesticides from water by thin-film composite polyamide membrane indigenously prepared by interfacial polymerization of 1,3-phenylenediamine and 1,3,5 trimesoyl chloride coated on asymmetric polysulfone support. Membrane performance was evaluated by gas and liquid chromatography mass spectroscopy determination of multiple pesticides remaining in feed and permeated water following the application of pesticides each @ 0.02, 0.05, and 0.10 mg/L in de-ionized water. The membrane was most efficient in the rejection of persistent organochlorine insecticides, viz. endosulfans (100%), dichlorodiphenyltrichloroethane (95%), and hexachlorocyclohexane (92%). Out of 43 selected pesticides, 33 were removed by > 80%. Size exclusion mass transfer played a significant role for molecules to pass through the membrane as observed for endosulfan isomers, endosulfan sulphate, and difenoconazole with molecular weight > 400. Pesticide rejection was also related to hydrophobicity (Log P). Hydrophobic pesticides with log P > 4.5 were rejected by > 80%, while monocrotophos with less hydrophobicity (log P = − 0.22) exhibited poor rejection (38%). Water flux decreased with an increase in pesticide concentration. The process of pesticide filtration was optimized at 200 psi. The results indicated the potential of the membrane to remove pesticides from water.

show abstract

Section: Pesticide Removal By Membrane Filtrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Removal of multiple pesticide residues from water by low-pressure thin-film composite membrane

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Mathematical models have been optimized to predict NF membrane performance for compound separation. The behavior and rejection mechanisms of fruit juice phenolic compounds were analyzed based on the quantitative structure–activity relationship model (Hidalgo et al, ; Banerjee & De, ). However, the effect of molecular state on the performance mass transfer process was not discussed.…”

Section: Introductionmentioning

confidence: 99%

Exploring the nanofiltration mass transfer characteristic and concentrate process of procyanidins from grape juice

Ma²,

et al. 2019

Food Science & Nutrition

View full text Add to dashboard Cite

In order to separate procyanidins from grape juice at room temperature, a separation prediction model was established based on nanofiltration. The mass transfer coefficient was positively correlated with the initial concentration. Nanofiltration performance of procyanidins was affected by filtration conditions, membrane properties, and molecular states. The correlation between mass transfer coefficient and initial concentration was established based on the linear equations of the rejection and mass transfer coefficient. The rejection of procyanidins predicted with the mass transfer model was in accordance with the experimental value, and the antioxidant activity was preserved effectively. The mathematical model could predict the rejection of procyanidins. The nanofiltration technology for procyanidin separation from grape juice was characterized by fast separation, low energy consumption, and zero oxidization loss. The nanofiltration technology could greatly improve the utilization efficiency of food products and decrease the energy consumption.

show abstract

“…The solution-diffusion models [38] have been used to depict transfer through membranes after experimentally determining the constants of the models. Systems mass balances together with solution-diffusion mass transfer models have been used to simulate the separation process; mainly, this model has been widely used in reverse osmosis membranes, but it has also been applied to nanofiltration membranes [39]. The model equations used in the present work have previously been discussed in other research works [40].…”

Section: Simplified Solution-diffusion Modelmentioning

confidence: 99%

Prediction of Flux and Rejection Coefficients in the Removal of Emerging Pollutants Using a Nanofiltration Membrane

Hidalgo,

Gómez,

Murcia

et al. 2023

Membranes

View full text Add to dashboard Cite

The removal of three emerging pollutants: carbamazepine, ketoprofen, and bisphenol A, has been studied using the nanofiltration flat sheet membrane NF99HF. The removal efficiencies of the membrane have been evaluated by two system characteristic parameters: permeate flux and rejection coefficient. The influence of two operating variables has been analysed: operating pressure and feed concentration. Before and after the tests with emerging pollutants, the membrane has been characterized by determining its water permeability coefficient and its magnesium chloride rejection coefficient to find out if the removal of emerging pollutants causes membrane fouling. The results show that operating pressure has significant separation effects, obtaining the highest efficiencies at a pressure of 20 bar for pollutant concentrations between 5 and 25 mg/L. Moreover, rejection of ketoprofen was found to be dependent on electrostatic repulsion, while rejection of bisphenol A was significantly affected by adsorption onto the membrane. Finally, the experimental data have been fitted to the solution diffusion model and to the simplified model of Spiegler-Kedem-Katchalsky to predict the behaviour of the nanofiltration membrane in the removal of the tested pollutants. Good agreement between the experimental and predicted carbamazepine and bisphenol A data has been obtained with each model, respectively.

show abstract

Application of the solution-diffusion model for the removal of atrazine using a nanofiltration membrane

Cited by 9 publications

References 28 publications

Removal of multiple pesticide residues from water by low-pressure thin-film composite membrane

Removal of multiple pesticide residues from water by low-pressure thin-film composite membrane

Exploring the nanofiltration mass transfer characteristic and concentrate process of procyanidins from grape juice

Prediction of Flux and Rejection Coefficients in the Removal of Emerging Pollutants Using a Nanofiltration Membrane

Contact Info

Product

Resources

About