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Related Experiment Videos

Optimizing nitrogen removal in the BioDenitro process.

I Irizar1, J Suescun, F Plaza

  • 1Environmental Engineering Section, CEIT, 20018 San Sebastian, Spain.

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|February 3, 2004
PubMed
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Simulations analyzed BioDenitro-alternating process configurations for wastewater treatment. Adding a post-aeration reactor enhances flexibility for meeting diverse nitrogen removal requirements.

Area of Science:

  • Environmental Engineering
  • Wastewater Treatment Technologies
  • Biotechnology

Background:

  • The BioDenitro-alternating process offers potential for wastewater nitrogen removal.
  • Different configurations are needed to address varying wastewater characteristics and effluent standards.
  • Activated Sludge Model No. 2 (ASM2) is a key tool for simulating biological wastewater treatment.

Purpose of the Study:

  • To analyze the potential and limitations of different BioDenitro-alternating process configurations.
  • To evaluate configurations based on wastewater characteristics, space constraints, and effluent nitrogen requirements.
  • To assess the effectiveness of incorporating a post-aeration reactor.

Main Methods:

  • Simulations using Activated Sludge Model No. 2 (ASM2).

Related Experiment Videos

  • Analysis of alternating reactor cycles including aerated and hydraulic phases.
  • Experimental validation of a configuration with a post-aeration reactor.

    • Main Results:

    • The combined alternating and aerated/hydraulic phase configuration shows high potential for strict total nitrogen limits.
    • This configuration is limited for low NH4-N, high total nitrogen, and minimal retention times.
    • Incorporating a post-aeration reactor proved effective and flexible for meeting diverse nitrogen requirements, validated experimentally.

    Conclusions:

    • The BioDenitro-alternating process, especially with a post-aeration reactor, offers a flexible solution for wastewater nitrogen removal.
    • Operational simplicity was demonstrated by adjusting aeration phase duration.
    • ASM2 showed satisfactory predictive capacity for this treatment process.