title: [Concentrations, distribution characteristics and electron beam radiolysis degradation of PCDD/Fs in waste water from a paper mill].
abstract: Concentrations and distribution characteristics of 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and dibenzofurans (2,3,7,8-PCDD/Fs) were analyzed in waste water from a paper mill. And concentrations of 2,3,7,8-PCDD/Fs in waste water before and after electron beam irradiation with different doses were compared. The feasibility, mechanism and rates of 2,3,7,8-PCDD/Fs degradation were discussed. The PCDD/Fs concentrations and corresponding I-TEQ (toxic equivalent quantity) values were 239 pg x L(-1) and 41.0 pg x L(-1), respectively, in the waste water. The concentrations of total 2,3,7,8-PCDD/Fs decreased after electron beam radiolysis at a dose of 30 kGy and 60 kGy with degradation rates of 5.27% and 23.6%, respectively.
authors.forename: Xian
authors.initials: X
authors.lastname: Qing
authors.forename: Jin-Qiong
authors.initials: JQ
authors.lastname: Huang
authors.forename: Xiao-Wei
authors.initials: XW
authors.lastname: Yu
authors.forename: Su-Kun
authors.initials: SK
authors.lastname: Zhang
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Yang
authors.forename: Ming-Zhong
authors.initials: MZ
authors.lastname: Ren
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Wen
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D004583:Electrons; D007221:Industry; D010209:Paper; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D011108:Polymers / Q000032:analysis*; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D001572:Benzofurans; D000072317:Polychlorinated Dibenzodioxins; D011108:Polymers; D062065:Wastewater; C016068:polychlorodibenzofuran