Oily Wastewater Separation by Using Nanofibrous Membrane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F19%3A00007011" target="_blank" >RIV/46747885:24620/19:00007011 - isvavai.cz</a>

Výsledek na webu

<a href="http://trs2019.ft.tul.cz/Home/TRS_2019.pdf" target="_blank" >http://trs2019.ft.tul.cz/Home/TRS_2019.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Oily Wastewater Separation by Using Nanofibrous Membrane

Popis výsledku v původním jazyce

In this work, we have demonstrated a facile method to separate oily wastewater using polyvinylidene fluoride (PVDF) nanofibrous membranes. Various density of PVDF nanofibers were produced using needle-free electrospinning system. A nonwoven supporting layer has been adhered to the nanofibers using a heat press lamination process without any damages. An emulsion with oil droplets size in between 200-1000 nm has been prepared. The structure, permeability and the fouling/anti-fouling of PVDF membranes were studied systematically. Results indicated that, the PVDF membranes selectively separated oil from oily water and showed oleophilic/hydrophobic characteristics. On the contrary, the nonionic surfactant used in emulsion has changed the membrane wettability and created oleophobic/hydrophilic membrane due to surfactant-membrane interaction. The prepared PVDF membranes in this work promise a potential uses in the separation of oily water due to excellent physical/chemical resistance, permeability and mechanical properties.

Název v anglickém jazyce

Oily Wastewater Separation by Using Nanofibrous Membrane

Popis výsledku anglicky

In this work, we have demonstrated a facile method to separate oily wastewater using polyvinylidene fluoride (PVDF) nanofibrous membranes. Various density of PVDF nanofibers were produced using needle-free electrospinning system. A nonwoven supporting layer has been adhered to the nanofibers using a heat press lamination process without any damages. An emulsion with oil droplets size in between 200-1000 nm has been prepared. The structure, permeability and the fouling/anti-fouling of PVDF membranes were studied systematically. Results indicated that, the PVDF membranes selectively separated oil from oily water and showed oleophilic/hydrophobic characteristics. On the contrary, the nonionic surfactant used in emulsion has changed the membrane wettability and created oleophobic/hydrophilic membrane due to surfactant-membrane interaction. The prepared PVDF membranes in this work promise a potential uses in the separation of oily water due to excellent physical/chemical resistance, permeability and mechanical properties.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů