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COD reduction and decolorization of textile effluent using a combined process.

Sangyong Kim1, Chulhwan Park, Tak-Hyun Kim

  • 1Advanced Energy & Environment Research Team, Korea Institute of Industrial Technology, Chonan 330-825, Korea. sykim@kitech.re.kr

Journal of Bioscience and Bioengineering
|October 20, 2005
PubMed
Summary
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Biological pretreatment combined with chemical coagulation and electrochemical oxidation effectively removes contaminants. This integrated approach significantly reduces chemical oxygen demand (COD) and wastewater color.

Area of Science:

  • Environmental Science
  • Water Treatment Technologies
  • Microbiology

Background:

  • Wastewater treatment often requires multi-step processes.
  • Biological pretreatment can enhance the efficiency of subsequent treatment stages.
  • Developing integrated systems is crucial for effective pollutant removal.

Purpose of the Study:

  • To evaluate the effectiveness of a combined wastewater treatment process.
  • To investigate the role of biological pretreatment in an integrated system.
  • To assess the removal of chemical oxygen demand (COD) and color.

Main Methods:

  • Implementing biological pretreatment using specific microorganisms and support media.
  • Integrating biological pretreatment with chemical coagulation.

Related Experiment Videos

  • Incorporating electrochemical oxidation as a final treatment step.

    • Main Results:

    • Achieved a 95.4% reduction in chemical oxygen demand (COD).
    • Attained a 98.5% reduction in wastewater color.
    • Demonstrated the synergistic effect of the combined treatment process.

    Conclusions:

    • The combined process of biological pretreatment, chemical coagulation, and electrochemical oxidation is highly effective.
    • Biological pretreatment is a viable and efficient method for enhancing wastewater treatment.
    • This integrated approach offers a promising solution for industrial wastewater management.