title: Reduction of acute toxicity and genotoxicity of dye effluent using Fenton-coagulation process.
abstract: Dye wastewater exhibits significant ecotoxicity even though its physico-chemical parameters meet the discharge standards. In this work, the acute toxicity and genotoxicity of dye effluent were tested, and the Fenton-coagulation process was carried out to detoxify this dye effluent. The acute toxicity was evaluated according to the mortality rate of zebrafish, and genotoxicity was evaluated by micronucleus (MN) and comet assays. Removal of color and chemical oxygen demand (COD) was also investigated. The results indicated that the dye effluent showed strong acute toxicity and genotoxicity to zebrafish. After 4h of treatment by Fenton-coagulation process, the dye effluent exhibited no significant acute toxicity and genotoxicity to zebrafish. In addition, its COD was less than 50mg/L, which met the discharge standard. It demonstrates that Fenton-coagulation process can comprehensively reduce the acute toxicity and genotoxicity as well as the COD of the dye effluent.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Chen
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China. Electronic address: quanxie@dlut.edu.cn.
authors.forename: Xie
authors.initials: X
authors.lastname: Quan
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
authors.forename: Yaobin
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D000818:Animals; D057919:Biological Oxygen Demand Analysis; D003116:Color; D004396:Coloring Agents / Q000737:chemistry* / Q000633:toxicity*; D020552:Comet Assay; D005427:Flocculation; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007220:Industrial Waste; D007501:Iron / Q000737:chemistry*; D015162:Micronucleus Tests; D009281:Naphthalenes / Q000737:chemistry / Q000633:toxicity; D012972:Sodium Hydroxide / Q000737:chemistry; D013431:Sulfates / Q000737:chemistry / Q000633:toxicity; D023382:Toxicity Tests, Acute; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000633:toxicity*; D015027:Zebrafish
chemical_list: D004396:Coloring Agents; D007220:Industrial Waste; D009281:Naphthalenes; C506998:Remazol Red F3B; D013431:Sulfates; D014874:Water Pollutants, Chemical; D012972:Sodium Hydroxide; D006861:Hydrogen Peroxide; D007501:Iron
keywords: Acute toxicity; COD; Dye effluent; Fenton-coagulation; Genotoxicity