Regional Symposium on Innovation in science and technology

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Oil-water separation using a bio-based membrane

Authors :

Maryam Davardoostmanesh¹ Hossein Ahmadzadeh²

1- Ferdowsi University of Mashhad 2- Ferdowsi University of Mashhad

Keywords :

Steel mesh،microalgae،oil-water separation

Abstract :

The growing increase of oily wastewater caused by frequently oil spill accidents poses a severe threat to ecological environment. Therefore, development highly efficient oil/water separation methods are highly necessary. Inspired from fish scales, we prepared an underwater superoleophobic membrane using microalgae coated on steel mesh. In order to fix microalgae biofilm on the surface of steel mesh, PVA polymer and glutaraldehyde as crosslinking reagent was used. The prepared membrane demonstrated high efficiency (above 98 %) for oil-water separation with the highest water flux of 30225.0 L m−2 h−1. Due to its simplicity, low cost and great performance, the as-prepared membrane could find broad applications for commercial purposes.

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