title: Treatment of laundry wastewater using polyethersulfone/polyvinylpyrollidone ultrafiltration membranes.
abstract: In this study, laundry wastewater filtration was studied using hydrophilic polyvinylpyrollidone (PVP) modified polyethersulfone (PES) ultrafiltration membranes. The performances of PES/PVP membranes were assessed using commercial PES membrane with 10kDa in ultrafiltration. Operating parameters The influence of transmembrane pressure (TMP) and stirring speed on laundry wastewater flux was investigated. A higher permeate flux of 55.2L/m(2)h was obtained for modified PES membrane with high concentration of PVP at TMP of 500kPa and 750rpm of stirring speed. The separation efficiencies of membranes were also studied with respect to chemical oxygen demand (COD), total dissolved solids (TDS), turbidity and conductivity. Results showed that PES membrane with 10% of PVP had higher permeate flux, flux recovery and less fouling when compared with other membranes. Higher COD and TDS rejection of 88% and 82% were also observed for modified membranes due to the improved surface property of membranes. This indicated that modified PES membranes are suitable for the treatment of surfactant, detergent and oil from laundry wastewater.
authors.affiliation: Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, India.
authors.forename: A
authors.initials: A
authors.lastname: Sumisha
authors.affiliation: Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, India. Electronic address: arthanaree10@yahoo.com.
authors.forename: G
authors.initials: G
authors.lastname: Arthanareeswaran
authors.affiliation: Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, India.
authors.forename: Y
authors.initials: Y
authors.lastname: Lukka Thuyavan
authors.affiliation: Advanced Membrane Research Center (AMTEC), UniversitiTeknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. Electronic address: fauzi.ismail@gmail.com.
authors.forename: A F
authors.initials: AF
authors.lastname: Ismail
authors.affiliation: Department of Informatics, Modeling, Electronics and Systems Engineering (DIMES),University of Calabria, Via P. Bucci, Cubo - 42a, 87036 Rende, CS, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Chakraborty
mesh_terms: D057919:Biological Oxygen Demand Analysis; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry*; D011205:Povidone / Q000737:chemistry*; D013450:Sulfones / Q000737:chemistry*; D014462:Ultrafiltration; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D011205:Povidone; D013450:Sulfones; D062065:Wastewater; D014874:Water Pollutants, Chemical; C022840:polyether sulfone
keywords: Chemical oxygen demand; Laundry wastewater; Total dissolved solids; Turbidity; Ultrafiltration