Search results for: MIXOTROPHIC DENITRIFICATION

• Enhancing nitrogen removal in the partial denitrification/anammox processes for SO4− - Rich wastewater treatment: Insights into autotrophic and mixotrophic strategies

  Publication

  • D. Derwis
  • H. Al-Hazmi
  • J. Majtacz
  • S. Ciesielski
  • J. Mąkinia

  - JOURNAL OF ENVIRONMENTAL MANAGEMENT - Year 2024

  The investigation of partial denitrification/anammox (PD/anammox) processes was conducted under autotrophic (N–S cycle) and mixotrophic (N–S–C cycle) conditions over 180 days. Key findings revealed the remarkable capability of SO42--dependent systems to produce NO2− effectively, supporting anaerobic NH4+ oxidation. Additionally, SO42− served as an additional electron acceptor in sulfate reduction ammonium oxidation (SRAO). Increasing...

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• The role of the combined nitrogen-sulfur-carbon cycles for efficient performance of anammox-based systems

  Publication

  • D. Derwis
  • H. Al-Hazmi
  • J. Majtacz
  • P. Kowal
  • S. Ciesielski
  • J. Mąkinia

  - SCIENCE OF THE TOTAL ENVIRONMENT - Year 2024

  The combined anammox/mixotrophic denitrification process was conducted in two granular sequencing batch reactors (SBRs) during a 200-day operation. Both reactors were fed with synthetic medium, but SBR2 was enriched with additional sulfate (SO4 2 ) which influenced sulfate reduction ammonium oxidation (SRAO) and heterotrophic reduction of SO4 2 by sulfate reducing bacteria. It was hypothesized that the addition of SO4 2 could...

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