Biological and oxidative treatment of cotton textile dye-bath effluents by fixed and fluidized bed reactors.

  title={Biological and oxidative treatment of cotton textile dye-bath effluents by fixed and fluidized bed reactors.},
  author={Ahmet Baban and Ayfer Yediler and Gulsen Avaz and S S Hostede},
  journal={Bioresource technology},
  volume={101 4},
A treatability study for highly polluted and recalcitrant azo reactive dye-baths from cotton textile dyeing processes was conducted by using fixed and up-flow fluidized bed type reactors packed with brown coal. Ozone oxidation was carried out to assess the combination of biological and chemical oxidation. COD removal efficiencies ranged from 70% to 93%, and up to 99% color removal was attained. At a COD loading rate of 25.5 x 10(-6) gCOD/m(2)-d, COD removal was 85%. Breakthrough of the brown… CONTINUE READING
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