title: Harvesting of Chlorella sp. KR-1 using a cross-flow membrane filtration system equipped with an anti-fouling membrane.
abstract: The purpose of the present study is to reduce fouling formation, a fatal problem of membrane technology by means of surface-coating with a functional coating material, i.e., hydrophilic polyvinyl alcohol (PVA) polymer. The PVA coating caused the membrane surface to become more hydrophilic and it was confirmed by decreased contact angles up to 64% compared to the un-modified membranes. The surface-coated membrane found to exhibit substantially enhanced performance: a maximum flux increase of 36% and almost 100% recovery rate. Maximum concentration factor of 77 also was modeled in the present study. These results show that the membrane performance can be improved simply by applying a surface-active coating, even to the level of economic feasibility.
authors: Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, South Korea.
authors: Taewoon
authors: T
authors: Hwang
authors: Seong-Jik
authors: SJ
authors: Park
authors: You-Kwan
authors: YK
authors: Oh
authors: Naim
authors: N
authors: Rashid
authors: Jong-In
authors: JI
authors: Han
mesh_terms: D057219:Biofouling / Q000517:prevention & control*; D002708:Chlorella / Q000254:growth & development*; D005374:Filtration / Q000295:instrumentation*; D008567:Membranes, Artificial; D011093:Polyethylene Terephthalates / Q000737:chemistry; D011142:Polyvinyl Alcohol / Q000737:chemistry; D011145:Polyvinyls / Q000737:chemistry; D012212:Rheology; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*; D005465:Fluorocarbon Polymers
chemical_list: D008567:Membranes, Artificial; D011093:Polyethylene Terephthalates; D011142:Polyvinyl Alcohol; D011145:Polyvinyls; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers