title: Effect of different carriers and operating parameters on degradation of flax wastewater by fluidized-bed Fenton process.
abstract: This investigation evaluates the effectiveness of a fluidized-bed Fenton process in treating flax wastewater. Flax wastewater was taken from a paper-making factory in a secondary sedimentation tank effluent of a paper-making factory in Hebei. The performance of three carriers (SiO2, Al2O3, Fe2O3) used in the reactor was compared, and the effects of different operational conditions, and Fenton reagent concentrations were studied. Experimental results indicated that SiO2 was the most appropriate carrier in the system. The dose of Fe2+ and H2O2 was a significant operating factor in the degradation progress. The bed expansion was considered to be another factor influencing the treatment effect. Under the appropriate conditions (300 mg/L Fe2+, 600 mg/L H2O2, and 74.07 g/L SiO2 as the carrier, at pH=3, 50% bed expansion), the highest removal rate of total organic carbon (TOC) and color was 89% and 94%, respectively. The article also discussed the process of the colority removal of flax wastewater and the kinetics of TOC removal.
authors.affiliation: School of Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, China and State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Jiangsu, China E-mail: dinglili@nju.edu.cn.
authors.forename: Mengtian
authors.initials: M
authors.lastname: Chen
authors.affiliation: School of Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, China and State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Jiangsu, China E-mail: dinglili@nju.edu.cn.
authors.forename: Hongqiang
authors.initials: H
authors.lastname: Ren
authors.affiliation: School of Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, China and State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Jiangsu, China E-mail: dinglili@nju.edu.cn.
authors.forename: Lili
authors.initials: L
authors.lastname: Ding
authors.affiliation: Suzhou Dingyu Energy-efficient Equipment Co., Ltd, Suzhou, China.
authors.forename: Baotian
authors.initials: B
authors.lastname: Gao
mesh_terms: D019149:Bioreactors; D019597:Flax; D007220:Industrial Waste / Q000032:analysis; D007700:Kinetics; D010084:Oxidation-Reduction; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater; D018508:Water Purification / Q000379:methods
chemical_list: D007220:Industrial Waste; D062065:Wastewater