Re-use of waste cotton textile as an ultrafiltration membrane

Textile industry produces millions of tons waste annually, which is predominantly incinerated or landfilled. Cotton textile comprises a quarter total production, and although being renewable, its production highly chemical- water-intensive, rising the need for effective cotton recycling. This study presents an investigation whether it possible to utilize as cellulose source fabrication membranes. The effect casting thickness concentration on prepared membranes’ performance was studied. Membranes cast from 2 wt% solutions exhibited highest permeabilities 1.11 3.09 m3/(m2·s·Pa) 300 150 ?m thickness, respectively, but poor adhesion stability low retention. higher concentrations (5, 6, 7 wt%) resulted in membranes with more stable performance. permeability values were range 0.27 – 0.39 0.51 0.67 m3/(m2·s·Pa). retention these six relatively close each other, showing 80 92% polyethylene glycol (PEG) 35 kDa. Three most promising at 150?m) additionally characterized, negative zeta potential within ?23 ?35 mV pH contact angles very hydrophilic material (14 16°). Overall, results showed that ultrafiltration having attractive properties can be made waste. 1 m2 bed linen enough produce approximately 20 membrane.