Separation of water-oil emulsion by polyamide membranes treated with corona plasma

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Studies were carried out on the separation of the water-oil emulsion by polyamide membranes with a pore size of 0.2 μm treated with corona discharge plasma at a voltage of 5–25 kV and a time of 1–5 minutes. An increase in the productivity and efficiency of the separation of the water-oil emulsion by corona-treated polyamide membranes was revealed. Increase of roughness and change of chemical structure of modified membranes are shown.

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Sobre autores

V. Dryakhlov

Kazan National Research Technological University

Autor responsável pela correspondência
Email: vladisloved@mail.ru
Rússia, Kazan, Karl Marx St., 68

I. Shaikhiev

Kazan National Research Technological University

Email: vladisloved@mail.ru
Rússia, Kazan, Karl Marx St., 68

D. Fazullin

Kazan (Volga Region) Federal University

Email: vladisloved@mail.ru

Naberezhnye Chelny Institute

Rússia, Naberezhnye Chelny, ave. Mira, 68/19

I. Nizameev

Kazan National Research Technical University named after A.N. Tupolev

Email: vladisloved@mail.ru
Rússia, Kazan, Karl Marx St., 10

M. Galikhanov

Institute of Applied Research, Tatarstan Academy of Sciences

Email: vladisloved@mail.ru
Rússia, Kazan, Bauman str., 20

I. Mukhamadiev

Kazan National Research Technological University

Email: vladisloved@mail.ru
Rússia, Kazan, Karl Marx St., 68

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2. Fig. 1. Corona device diagram: 1 – high voltage source, 2 – grounded electrode, 3 – corona electrode, 4 – membrane sample.

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3. Fig. 2. Performance of separation of oil emulsion by PA membranes treated with corona discharge at: a) U = 5 kV; b) U = 15 kV; c) U = 25 kV.

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4. Fig. 3. Graph of the dependence of particle sizes and VNE intensity before and after corona treatment.

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5. Fig. 4. Diffraction pattern of the original and treated PA membrane with a pore size of 0.2 µm.

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6. Fig. 5. IR spectrum of the original and corona-treated PA membranes with a pore size of 0.2 µm.

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7. Fig. 6. Images of the surface with corresponding topographic histograms of the PA membrane: a) original; b) corona-treated.

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