Journal of Industrial and Engineering Chemistry

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Co-treatment systems combined with unit processes for dye wastewater recycling

  • Shin, Choon-Hwan (Department of Energy & Environmental Engineering, Dongseo University) ;
  • Bae, Jun-Seok (Division of Earth Science and Resource Engineering) ;
  • Rudolph, Victor (School of Chemical Engineering, University of Queensland)
  • Received : 2013.01.29
  • Accepted : 2013.05.27
  • Published : 2014.03.25
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Abstract

In this paper, co-treatment systems were configured to recycle dye wastewater by combining unit processes such as membrane separation, ozone oxidation and electrolysis. In our previous study of co-treatment with membrane separation and ozone processes (modes 1-3), it was found that ozone oxidation with enriched oxygen was effective in removing dye wastewater. Additional two co-treatment systems (mode 4: membrane separation and electrolysis and mode 5: mode 4 + ozone process with enriched oxygen) were configured in this paper and operated continuously for 24 h. Compared to our previous results, co-treatment systems with electrolysis were found to further enhance the removal efficiencies of organic matter, T-N and T-P by 4, 20 and 15%, respectively. Especially, their color removal efficiencies were about 75-85 and 93% with modes 4 and 5, respectively, indicating that co-treatment with electrolysis is an excellent system in color removal.

Keywords

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