title: Effect of membrane properties on the performance of a hybrid GAC and ultrafiltration process for water treatment.
abstract: The performance of a hybrid granular activated carbon (GAC) and ultrafiltration (UF) process for water treatment was investigated using five types of UF membranes. The removal percentages for chemical oxygen demand (COD(Mn)), particles (> or = 2 microm) and total bacteria by the hybrid process were 30-40%, 98-99% and 76-92%, respectively. No invertebrates were detected in the hybrid process effluent. Transmembrane pressure and specific permeate flux (SPF) of the five types of membranes varied. With decreasing membrane pore sizes, removal of COD(Mn) and particles increased, whereas SPF firstly decreased and then increased. Hydrophilic membranes had a relatively high COD(Mn) removal potential, but did not obviously affect particle removal or SPF.
authors.affiliation: Research Centre for Environmental Engineering and Management, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
authors.forename: Tiejun
authors.initials: T
authors.lastname: Qiao
authors.forename: Guangxue
authors.initials: G
authors.lastname: Wu
authors.forename: Xihui
authors.initials: X
authors.lastname: Zhang
authors.forename: Doris W T
authors.initials: DW
authors.lastname: Au
authors.forename: Jinsong
authors.initials: J
authors.lastname: Zhang
mesh_terms: D002606:Charcoal; D006813:Humidity; D057927:Hydrophobic and Hydrophilic Interactions; D009930:Organic Chemicals / Q000302:isolation & purification; D010865:Pilot Projects; D013242:Sterilization; D013696:Temperature; D014462:Ultrafiltration / Q000295:instrumentation*; D018508:Water Purification
chemical_list: D009930:Organic Chemicals; D002606:Charcoal