The effect of wettability on drop attachment to glass rods

Effect of fibrous filter properties on the oil-in-water-emulsion separation and filtration performance

“…There are two very important and common mechanisms to separate these emulsions by means of porous fibrous media: (a) coalescence by means of depth filter and (b) separation by means of surface filter [1][2][3][4][5][6][7][8][9]. The main steps in the coalescence filtration process are (1) transport of small droplets from an immiscible fluid to the filter, (2) attachment of small droplets to the fibers surface, (3) increase in drops size on the fiber (coalescence), (4) merging and transport of drops on the fiber and (5) removal of the drops from the filter [6][7][8][9][10][11][12][13]. While in the case of surface filtration the smaller pore size and the surface geometry of the filter do not let the dispersed droplets to pass through the filter and retain them at filter surface.…”

“…[4][5][6][7][8][9][10][11]. However, the opinions differ on the effect of filter media surface wettability on emulsion separation.…”

Filtration application from recycled expanded polystyrene

“…Water-in-oil emulsion separations are important to the petroleum and chemical industries [1][2][3][4][5][6][7]. In many applications, dispersions of water drop sizes of less than 100 µm are very difficult to separate.…”

“…In many applications, dispersions of water drop sizes of less than 100 µm are very difficult to separate. Coalescence filtration can be economical and effective for separation of secondary dispersions [1][2][3][4][5]. There are three main steps of the coalescence process.…”

“…One important factor that controls the performance of a filter medium in the separation is the fiber size. Filter media with large fiber contact areas per unit volume generally perform better than media with lesser surface areas [1][2][3][4][5][6][7][8][9][10][11].…”