title: [Enhanced coagulation and NOM fractionation study of a typical southern water].
abstract: Systematic studies on enhancing normal treatment processes were performed in order to remove aquatic organic matter economically and efficiently. Enhanced coagulation and polymer coagulant-aid coagulation were compared through jar tests and on-spot experiment (Pilot-scale and full-scale experiment). Fractionations of raw water and water after treatments of above two strategies were performed based on selective adsorption of resin DAX-8. It was found that matters causing UV absorbance at 254 nm were well removed by above two treatments; removals of which could be achieved 90% or more. Hydrophobic bases and acids fractions were more removed under enhanced conditions with removals 66% and 35% respectively; while hydrophilic fraction could be better removed by about 45% using polymer coagulant aids. But the whole removals of the two strategies were almost equal.
authors.affiliation: State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
authors.forename: Hai-long
authors.initials: HL
authors.lastname: Liu
authors.forename: Zhong-huan
authors.initials: ZH
authors.lastname: Xia
authors.forename: Dong-sheng
authors.initials: DS
authors.lastname: Wang
authors.forename: Hong-xiao
authors.initials: HX
authors.lastname: Tang
authors.forename: Jin-song
authors.initials: JS
authors.lastname: Zhang
mesh_terms: D005591:Chemical Fractionation; D002681:China; D005427:Flocculation; D009930:Organic Chemicals / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
chemical_list: D009930:Organic Chemicals; D014874:Water Pollutants, Chemical