Removal of Iron and Copper Ions from the Liquid Phase by Modified Polymeric Membranes

Krason, Joanna; Pietrzak, Robert

doi:10.1007/s10924-018-1201-z

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…Then, the pure water flux was measured at 3 bar, 23 ±1ºC and 0.22 m/s cross-flow velocity. The pure water flux (Krason and Pietrzak, 2018) was calculated from the following equation:…”

Section: Membrane Performance Characterizationmentioning

confidence: 99%

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Membranes obtained on the basis of cellulose acetate and their use in removal of phenol from liquid phase

Przybył¹,

Bazan-Woźniak²,

Nosal‐Wiercińska³

et al. 2021

Physicochem. Probl. Miner. Process.

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The membranes based on cellulose acetate (CA) were obtained by the method of phase inversion and used for removal of phenol (in concentrations of 15 and 25 mg/L) from liquid phase. To differentiate the hydrophilic properties of the membrane surfaces, different amounts of cellulose acetate (14 and 18 wt. %) and polyvinylpyrrolidone as a pore-generating agent (PVP, 1, 2, 3 or 4 wt. %) were used. The membranes were characterised by determination of their porosity, equilibrium water content, wetting angle and content of surface oxygen functional groups. After the application of membranes to phenol removal, the following parameters characterising the process were determined: permeability, membrane resistance, coke resistances, pore resistances, total filtration resistance and flux recovery ratio. The membranes were found to show higher effectiveness in phenol removal from a solution of the initial concentration 15 mg/L, and more effective were the membranes with higher contents of cellulose acetate. On the surface of the membranes the oxygen functional groups of acidic nature are dominant, both before and after filtration. The membranes of higher contents of cellulose acetate show higher resistances.

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“…Then, the pure water flux was measured at 3 bar, 23 ±1ºC and 0.22 m/s cross-flow velocity. The pure water flux (Krason and Pietrzak, 2018) was calculated from the following equation:…”

Section: Membrane Performance Characterizationmentioning

confidence: 99%

“…on the glass, with a knife, the solvent is evaporated and then the substrate with the layer of polymer and pore-generating agent is immersed in the coagulating bath, e.g. with deionised water (Krason and Pietrzak, 2018). As a result, asymmetric porous membranes in the form of plane sheets are obtained.…”

Section: Introductionmentioning

confidence: 99%

Membranes obtained on the basis of cellulose acetate and their use in removal of phenol from liquid phase

Przybył¹,

Bazan-Woźniak²,

Nosal‐Wiercińska³

et al. 2021

Physicochem. Probl. Miner. Process.

Self Cite

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show abstract

“…Therefore, engineers and scientists have been constantly trying to maximise the efficiency of the usage of water by developing water treatment techniques. Filtration of water by using membranes is one of the most recently developed water treatment techniques [ 1 , 2 , 3 ]. On one hand, filtration with a membrane is an efficient technique to treat water; on the other hand, it is quite expensive.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes

et al. 2020

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To investigate the effect of polyvinylpyrrolidone (PVP) addition and consequently porosity, two different sets of membranes are manufactured, since PVP is a widely used poring agent which has an impact on the mechanical properties of the membrane material. The first set (PAN 1) includes polyacrylonitrile (PAN) and the necessary solvent while the second set (PAN 2) is made of PAN and PVP. These membranes are put through several characterisation processes including tensile testing. The obtained data are used to model the static behaviour of the membranes with different geometries but similar loading and boundary conditions that represent their operating conditions. This modelling process is undertaken by using the finite element method. The main idea is to investigate how geometry affects the load-carrying capacity of the membranes. Alongside membrane modelling, their materials are modelled with representative elements with hexagonal and rectangular pore arrays (RE) to understand the impact of porosity on the mechanical properties. Exploring the results, the best geometry is found as the elliptic membrane with the aspect ratio 4 and the better RE as the hexagonal array which can predict the elastic properties with an approximate error of 12%.

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“…Therefore, engineers and scientists have been constantly trying to maximise the efficiency of usage of water with developing water treatment techniques. Filtration of water by using membranes is one of the most recently developed water treatment techniques [1][2][3]. On one hand, filtration with a membrane is an efficient technique to treat water, on the other hand, it is quite expensive.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing, Characterisation and Mechanical Analysis of PAN Membranes

Tüfekçi¹,

Durak²,

Pir³

et al. 2020

Preprint

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To investigate the effect of Polyvinylpyrrolidone (PVP) addition and consequently porosity, two different sets of membranes are manufactured, since PVP is a widely used poring agent which has an impact on the mechanical properties of the membrane material. The first set (PAN 1) includes PAN and the necessary solvent while the second set (PAN 2) is made of PAN and PVP. These membranes are put through several characterisation processes including tensile testing. The obtained data are used to model the static behaviour of the membranes with different geometries, but similar loading and boundary conditions that represent their operating conditions. This modelling process is undertaken by using finite element method. The main idea is to investigate how geometry affects the load-carrying capacity of the membranes. Alongside membrane modelling, their materials are modelled with representative elements with hexagonal and rectangular pore arrays (RE) to understand the impact of porosity on the mechanical properties. Exploring the results, the best geometry is found as the elliptic membrane with the aspect ratio 4 and the better RE as the hexagonal array which can predict the elastic properties with an approximate error of 12%.

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Removal of Iron and Copper Ions from the Liquid Phase by Modified Polymeric Membranes

Cited by 7 publications

References 30 publications

Membranes obtained on the basis of cellulose acetate and their use in removal of phenol from liquid phase

Membranes obtained on the basis of cellulose acetate and their use in removal of phenol from liquid phase

Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes

Manufacturing, Characterisation and Mechanical Analysis of PAN Membranes

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