title: Dye wastewater treated by Fenton process with ferrous ions electrolytically generated from iron-containing sludge.
abstract: Fenton process was employed to treat synthetic dye wastewater with supply of Fe(II) electrolytically generated from iron-containing sludge which was recycled and reused throughout the study. Treated water quality and properties of iron sludge after being repeatedly used were reported and discussed. Experimental results showed that COD was mainly removed by oxidation other than coagulation. Although, the process was quite effective for COD and color removal, conductivity of treated water was enormously high. Meanwhile, repeated use of iron-containing sludge results in accumulation of organic materials embedded in the sludge as indicated by increasing volatile suspended solid (VSS)/TSS ratio and decreasing zeta potential.
authors.affiliation: Department of Water Resources and Environmental Engineering, TamKang University, 151 Ying-Chuan Road, Tamsui 25137, Taipei Hsien, Taiwan. chiwang@mail.tku.edu.tw
authors.forename: Chi-Wang
authors.initials: CW
authors.lastname: Li
authors.forename: Yi-Ming
authors.initials: YM
authors.lastname: Chen
authors.forename: Yi-Cheng
authors.initials: YC
authors.lastname: Chiou
authors.forename: Chuan-Kun
authors.initials: CK
authors.lastname: Liu
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D004572:Electrolysis; D005296:Ferrous Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D004396:Coloring Agents; D005296:Ferrous Compounds; D012722:Sewage; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide