Development of Anammox Control Factor and Operation Technology for Wastewater Treatment

EasyChair Preprint no. 4613

Abstract

Anaerobic ammonium oxidation (Anammox) is a process of the nitrogen cycle that converts ammonium at the expense of nitrate (NO3-) to nitrogen involving bacteria. In recent decades, Anammox is utilized to process ammonium in the wastewater plant. But, it has several weaknesses which long processing time and high sensitivity to disturbances are. In this study, control factor and operation technology are studied to overcome the aforementioned challenges. A sequencing batch reactor (SBR) is modelled using the activated sludge model (ASM). The general form of ASM is developed by the International Water Association (IWA) and mainly used to study biological processes in hypothetical systems. In real operation, the concentration of NO3-, which is crucial to control, is hard to measure. Therefore, a soft-sensor is used such as conductivity and pH must be incorporated in the developmental model to reconstruct such a relationship and thus also to estimate the NO3-. Because ASM can be applied for optimization when carefully calibrated with reference data for sludge production and nutrients in the effluent, a lab-scale plant is used to verify and validate the developed model parameter. Besides, the lab-scale plant is used to test the developed control structure.

Keyphrases: Activated sludge model, Ammonium concentration, Nitrate, nitrite, wastewater treatment

@Booklet{EasyChair:4613,
  author = {Dahee Yun and Choamun Yun and Hwanchul Cho and Sunam You and Seongju Kim and Alam Nawaz and Moonyong Lee},
  title = {Development of Anammox Control Factor and Operation Technology for Wastewater Treatment},
  howpublished = {EasyChair Preprint no. 4613},

  year = {EasyChair, 2020}}