Composite inorganic anion exchange membrane for electrodialytic desalination of milky whey

Dzyazko, Yuliya; Rozhdestveskaya, Liudmyla; Zmievskii, Yu.; Zakharov, Vladimir; Myronchuk, V.

doi:10.1016/j.matpr.2018.10.102

Cited by 18 publications

(7 citation statements)

References 40 publications

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“…The solutions in DC and CC were analyzed according to Dzyazko et al (16) and Myronchuk et al (17). Electrical conductivity and pH of whey were monitored.…”

Section: Electrodialytic Separationmentioning

confidence: 99%

“…After concentrating, deep demineralization of whey is necessary according to the requirements of food industry. Electrodialysis (ED) is the most widespread method for desalination of whey (14)(15)(16)(17). ED requires no high energy consumptions unlike membrane distillation (18), and no large volume of deionized water as opposed to diafiltration (19).…”

Section: Introductionmentioning

confidence: 99%

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Electrodialytic whey demineralization involving polymer-inorganic membranes, anion exchange resin and graphene-containing composite

Myronchuk

Zmievskii

Dzyazko³

et al. 2019

ACTA PERIOD TECHN

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Electrodialysis of cheese whey was performed using polymer membranes modified with zirconium hydrophosphate (cation exchange separator) and hydrated zirconium dioxide (anion exchange material). Both neutral and acidic solutions were used as a concentrate. As found, a 0.1 M HCl solution is preferable: the current efficiency towards mineral components and desalination degree reach 75-81 % and 90 % respectively, when the current does not exceed limiting current for cations. Anion exchange resin, as well as the composite containing zirconium dioxide and oxidized graphene, were involved in desalination. The composite adsorbs preferably cations, adsorption of anions is depressed. Its adsorption capacity is 1.2 (K +) and 0.25 (CL-) mmol g-1. Whey passed subsequently through the electrodialysis cell and beds of these materials. This approach allowed us to achieve the demineralization degree of 99%, and minimize losses of organic substances. Adsorption materials can be used repeatedly. The advantage of the composite over ion exchange resins is facile regeneration.

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“…The solutions in DC and CC were analyzed according to Dzyazko et al (16) and Myronchuk et al (17). Electrical conductivity and pH of whey were monitored.…”

Section: Electrodialytic Separationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrodialytic whey demineralization involving polymer-inorganic membranes, anion exchange resin and graphene-containing composite

Myronchuk

Zmievskii

Dzyazko³

et al. 2019

ACTA PERIOD TECHN

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“…The plasma discharge plays a crucial role in the formation, structure distribution, and composition phase of the PEO membranes, which determines the thermodynamic process and chemical state changes on the surface of the substrate. These mechanisms are complicated, and are related to thermal chemistry, acoustics, plasma chemistry, electrochemistry, and so on [ 6 , 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…The breakdown and discharge phenomena are other important features of PEO technology that have been studied by many researchers [ 6 , 7 , 8 , 9 , 10 ]. The PEO process is accompanied not only by the chemical reaction of the substrate, but also by the reaction of the heated substrate materials with oxygen before the breakdown of the dielectric barrier layer.…”

Section: Introductionmentioning

confidence: 99%

“…However, most research has focused on improving the performance and micro-structure of the membranes, such as the photocatalytic activity of the TiO 2 membranes prepared by PEO [ 2 ], the antibacterial effect, corrosion behavior and thermal control of membranes on pure titanium substrate [ 3 , 6 ], the nanocrystalline and amorphous structures [ 4 , 9 ] on the PEO membranes, and so on. Marti-Calatayud [ 7 ] reported that anion-exchange membranes made from inexpensive ceramic materials were synthesized using a simple procedure based on incorporating particles of an ion exchanger into a host microporous structure.…”

Section: Introductionmentioning

confidence: 99%

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Discharge Characteristics, Plasma Electrolytic Oxidation Mechanism and Properties of ZrO2 Membranes in K2ZrF6 Electrolyte

Wang

et al. 2022

Membranes

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ZrO2 was coated on AZ31 magnesium alloy substrate by plasma electrolytic oxidation with K2ZrF6 and NaH2PO4 electrolytes. The discharge characteristics and variation in active species during the plasma electrolytic oxidation (PEO) process were studied by optical emission spectroscopy. The surface morphology and element composition of the membranes were observed by scanning electron microscope. The ion transfer of the substrate was studied by atomic absorption spectroscopy. The phase composition and corrosion characteristics of the PEO membranes were examined with XRD and an electrochemical workstation, respectively. The heat and mass transfer models during the PEO process were introduced. The contributions of ions to the membranes and active species were also analyzed. The results indicated that the ion transfer at different stages exhibits different tendencies. At the first and transition stages, the migration resistance of the ions was low and increased gradually. At the initial discharge stage, the migration resistance was the highest because the highest membrane growth rate occurred at this stage. At the later discharge stage, the migration resistance tends to be stable, which is ascribed to a dynamic equilibrium PEO membrane growth rate. The intensity of active species is related to the energy state of the working electrode’s surface. The higher the energy, the greater the probability that the active species will be excited to generate energy level transitions, and the higher the plasma concentration.

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Polysaccharides: An Efficient Tool for Fabrication of Carbon Nanomaterials

Dzyazko

Ogenko

2021

Polysaccharides

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Composite inorganic anion exchange membrane for electrodialytic desalination of milky whey

Cited by 18 publications

References 40 publications

Electrodialytic whey demineralization involving polymer-inorganic membranes, anion exchange resin and graphene-containing composite

Electrodialytic whey demineralization involving polymer-inorganic membranes, anion exchange resin and graphene-containing composite

Discharge Characteristics, Plasma Electrolytic Oxidation Mechanism and Properties of ZrO2 Membranes in K2ZrF6 Electrolyte

Polysaccharides: An Efficient Tool for Fabrication of Carbon Nanomaterials

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