title: Removing of Disinfection By-Product Precursors from Surface Water by Using Magnetic Graphene Oxide.
abstract: The magnetic graphene oxide (MGO) was successfully synthesised by the in situ chemical co-precipitation method with Fe3+, Fe2+ and graphene oxide (GO) in laboratory and, was used as an adsorbent for disinfection by-product (DBP) precursors removing from four natural surface water samples. The results indicate that various DBPs formation significantly decreased by 7-19% to 78-98% for the four samples after MGO treatment and, the treatment process was rapidly reached equilibrium within 20 minutes. The DBP precursors removal efficiency decreased with the increasing pH value from 4 to 10. Hydrophobic compounds (humic acid and fulvic acid) are more sensitive to MGO, whereas hydrophilic and nitrogenous compounds (aromatic proteins) are more insensitive. MGO could be regenerated by using 20% (v/v) ethanol and, the DBP precursors removal efficiency can stay stable after five cycles. These results indicate that MGO can be utilized as a promising adsorbent for the removal of DBP precursors from natural surface water.
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.
authors.forename: Zhongmou
authors.initials: Z
authors.lastname: Liu
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.
authors.forename: Xianze
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.|Wuxi Xindu Environmental Protection Technology Co., Ltd. Wuxi 214215, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Luo
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.|Jilin Engineering Research Centre for Municipal Wastewater Treatment and Water Quality Protection, Changchun 130117, China.
authors.forename: Mingxin
authors.initials: M
authors.lastname: Huo
authors.affiliation: Scientific Research Management Department, Environmental Monitoring Center of Jilin Province, Changchun 13011, China.
authors.forename: Jinghui
authors.initials: J
authors.lastname: Wu
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Huo
authors.affiliation: School of Environment, Northeast Normal University, Changchun 130117, China.|Jilin Engineering Research Centre for Municipal Wastewater Treatment and Water Quality Protection, Changchun 130117, China.
authors.forename: Wu
authors.initials: W
authors.lastname: Yang
mesh_terms: D004202:Disinfectants; D006108:Graphite / Q000737:chemistry*; D006812:Humic Substances; D006863:Hydrogen-Ion Concentration; D058085:Iron Compounds / Q000737:chemistry*; D060328:Magnetic Phenomena; D017672:Nitrogen Compounds; D010087:Oxides / Q000737:chemistry*; D014874:Water Pollutants, Chemical; D018508:Water Purification / Q000379:methods*
chemical_list: D004202:Disinfectants; D006812:Humic Substances; D058085:Iron Compounds; D017672:Nitrogen Compounds; D010087:Oxides; D014874:Water Pollutants, Chemical; D006108:Graphite