Novel low-fouling membranes from lab to pilot application in textile wastewater treatment

[Display omitted] A novel antifouling coating based on the polymerization of a polymerisable bicontinuous microemulsion (PBM) was developed and applied for commercially available membranes for textile wastewater treatment. PBM coating was produced by polymerizing, on a polyethersulfone (PES) membran...

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Vydáno v:Journal of colloid and interface science Ročník 515; s. 208 - 220
Hlavní autoři: Galiano, Francesco, Friha, Ines, Deowan, Shamim Ahmed, Hoinkis, Jan, Xiaoyun, Ye, Johnson, Daniel, Mancuso, Raffaella, Hilal, Nidal, Gabriele, Bartolo, Sayadi, Sami, Figoli, Alberto
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Elsevier Inc 01.04.2018
Témata:
antifouling agents
coatings
dyes
emulsions
fouling
humic acids
hydrophilicity
Lab to pilot (LTP)
Low fouling membranes
Membrane bioreactor (MBR)
membrane bioreactors
permeability
Polymerisable bicontinuous microemulsion (PBM)
polymerization
quaternary ammonium compounds
surfactants
temperature
textile mill effluents
Textile wastewater
Wastewater treatment
Textile wastewater
Low fouling membranes
Membrane bioreactor (MBR)
Polymerisable bicontinuous microemulsion (PBM)
Wastewater treatment
Lab to pilot (LTP)
ISSN:0021-9797, 1095-7103, 1095-7103
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Shrnutí:[Display omitted] A novel antifouling coating based on the polymerization of a polymerisable bicontinuous microemulsion (PBM) was developed and applied for commercially available membranes for textile wastewater treatment. PBM coating was produced by polymerizing, on a polyethersulfone (PES) membrane, a bicontinuous microemulsion, realized by finely tuning its properties in terms of chemical composition and polymerization temperature. In particular, the PBM was prepared by using, as the surfactant component, inexpensive and commercially available dodecyltrimethylammonium bromide (DTAB). The coating exhibited a more hydrophilic and a smoother surface in comparison to uncoated PES surface, making the produced PBM membranes more resistant and less prone to be affected by fouling. The anti-fouling potential of PBM membranes was assessed by using humic acid (HA) as a model foulant, evaluating the water permeability decrease as an indicator of the fouling propensity of the membranes. PBM membrane performances in terms of dye rejection, when applied for model textile wastewater treatment, were also evaluated and compared to PES commercial ones. The PBM membranes were finally successfully scaled-up (total membrane area 0.33 m2) and applied in a pilot membrane bioreactor (MBR) unit for the treatment of real textile wastewater.
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ISSN:0021-9797
1095-7103
1095-7103
DOI:10.1016/j.jcis.2018.01.009