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      Dye wastewater treated by Fenton process with ferrous ions electrolytically generated from iron-containing sludge.

      Journal of hazardous materials
      Coloring Agents, chemistry, Electrolysis, Ferrous Compounds, Hydrogen Peroxide, Sewage, Waste Disposal, Fluid, methods, Water Pollutants, Chemical, Water Purification

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          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.

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          Journal
          17137712
          10.1016/j.jhazmat.2006.10.076

          Chemistry
          Coloring Agents,chemistry,Electrolysis,Ferrous Compounds,Hydrogen Peroxide,Sewage,Waste Disposal, Fluid,methods,Water Pollutants, Chemical,Water Purification

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