Fouling of polymer and organic-inorganic membranes during filtration of corn distillery

Zmievskii, Yu.; Dziazko, Yuliia; Myronchuk, V.; Rozhdestvenska, Ludmyla; Vilenskii, A. I.; Kornienko, Ludmyla

doi:10.24263/2304-974x-2016-5-4-13

Cited by 9 publications

(3 citation statements)

References 13 publications

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“…Moreover, the relationship between concentration polarization layer resistance and index of concentration polarization could be approximated by a linear equation with correlation coefficients more than 0.93 ( Figure 9). Consequently, such good qualitative agreement of concentration polarization layer resistance calculated from equation (9) with well-known theoretical fundamentals confirms the possibility of using the before-mentioned technique in serial experiments. The results obtained from pilot experiments are not enough for the establishment of quantitative relationships among concentration polarization layer resistance and operating parameters including applied pressure.…”

Section: Resultssupporting

confidence: 75%

“…In case of milk whey ultrafiltration flux drop for 67.5% because of those phenomena was observed over 20 hours of work [7] and during skimmed milk microfiltration the cake layer resistance was two times higher than membrane resistance [8]. Significant decreasing of permeate flux was also defined for microfiltration such products as corn distillery [9], beer [10] and wine [11].…”

Section: Introductionmentioning

confidence: 90%

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Influence of operating pressure on concentration polarization layer resistance in revers osmosis

Huliienko¹,

Leshchenko²

2019

Ukr. food j.

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Introduction. The experimental examination of hypothesis about linear dependence of concentration polarization resistance from pressure was carried out and the influence of hydrodynamic condition on this resistance is determined. Materials and methods. The research was carried out with using of commercially available membrane modules TFC-75 type. The measurements of productivity were carried out with using of deionized water (total dissolved solids 5-15 mg/dm 3) and also NaCl solutions. The volumetric technique was used for flux measurements. The concentration was measured by conductometric technique. Results and discussion. The membrane resistance during reverse osmosis of deionized water did not change with applied pressure in experimental conditions and was equal Rm=7,549•10 13 m-1. The concentration polarization layer resistance (Rcp) increased from 0.65-1.29•10 13 m-1 to 1.46-1.83•10 13 m-1 with applied pressure increasing from 0.2 MPa to 0.6 MPa and from 0.65-1.46 m-1 to 1.29-1.83•10 13 m-1 with increasing of feed concentration from 100 mg/dm 3 to 600 mg/dm 3. This increasing of Rcp value with pressure was linear which is in agreement with previously reported data for the ultrafiltration process. Moreover, in considered range of applied pressure, the exponential dependence of index of concentration polarization from applied pressure could be approximated by a linear equation with correlation coefficient 0.93. Therefore, assumption about linear dependence of concentration polarization layer resistance from pressure is reasonable and could be extended to reverse osmosis process for mentioned above conditions. The increasing of concentration polarization layer resistance with increasing of applied pressure is determinated by higher values of transmembrane fluxes and lower values of mass transfer coefficient at higher values of applied pressure in the considered system. These results are in agreement with film theory of concentration polarization. Conclusions. The exanimated hypothesis is validated for reverse osmosis in considered range of applied pressure. The correlation between concentration polarization layer resistance and index of concentration polarization was defined.

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Section: Resultssupporting

confidence: 75%

Section: Introductionmentioning

confidence: 90%

Influence of operating pressure on concentration polarization layer resistance in revers osmosis

Huliienko¹,

Leshchenko²

2019

Ukr. food j.

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“…The situation can be improved by modifying membranes with nanoparticles of inorganic ion-exchangers (14)(15)(16)(17) or removal of organics from the permeate solution before the membrane process. The organic compounds can be removed from aqueous solutions, for instance, by means of destruction (18) and adsorption (19).…”

Section: Introductionmentioning

confidence: 99%

Ozonation of nanofiltration permeate of whey before processing by reverse osmosis

et al. 2017

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During nanofiltration processing of whey a significant amount of permeate is generated. In some cases this permeate is treated by reverse osmosis to get purified water for technological needs. Dry substances are not used, because they contain practically the same amount of organic and inorganic components. Mineral substances can be used for the mineralization of drinking water purified by reverse osmosis. However, the presence of organic compounds complicates the process of separation, as well as reduces the specific productivity of reverse osmosis membranes at the concentration stage. Therefore, the search for methods of destruction and removal of organic components is grounded. In the presentед work, experimental studies of ozonation and sorption of organic compounds by activated carbon were carried. It has been shown that ozonation improves the degree of sorption purification by six times. Sequential treatment with ozone and subsequent filtration through the layer of activated carbon improves the specific productivity of reverse osmosis membranes by 30% at the stage of treatment of the nanofiltration permeate, while their selectivity remains unchanged.

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Membranes Modified with Advanced Carbon Nanomaterials (Review)

Dzyazko

Rozhdestvenska

Кudelko

et al. 2021

Springer Proceedings in Physics

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Fouling of polymer and organic-inorganic membranes during filtration of corn distillery

Abstract: Keywords:Distillery Membrane Nanoparticle Separation Modification

Cited by 9 publications

References 13 publications

Influence of operating pressure on concentration polarization layer resistance in revers osmosis

Influence of operating pressure on concentration polarization layer resistance in revers osmosis

Ozonation of nanofiltration permeate of whey before processing by reverse osmosis

Membranes Modified with Advanced Carbon Nanomaterials (Review)

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