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Development of long-term dynamic BioWin® model simulation for ANAMMOX UASB micro-granular process
Parin Izadi1, Parnian Izadi1, Ahmed Eldyasti1
1Lassonde School of Engineering, Civil Engineering, York University, 4700 Keele Street, Toronto, M3J 1P3, ON, Canada.
Chemosphere
|August 20, 2021
Summary
Mathematical models accurately simulated the anaerobic ammonium oxidation (ANAMMOX) process, predicting nitrogen removal with high precision. This confirms BioWin®’s reliability for optimizing ANAMMOX reactor design and operation.
Area of Science:
- Environmental Engineering
- Biotechnology
- Wastewater Treatment
Background:
- Anaerobic ammonium oxidation (ANAMMOX) offers significant technological and economic benefits for wastewater treatment.
- Process implementation challenges necessitate mathematical modeling for optimization and analysis.
Purpose of the Study:
- To develop and validate innovative mathematical models for assessing volumetric nitrogen conversion rates in an ANAMMOX reactor.
- To understand potential setbacks during ANAMMOX process start-up and stabilization using simulations.
Main Methods:
- Three mathematical models were developed and implemented using BioWin® software.
- Models were calibrated and validated against experimental data from a bench-scale micro-granular ANAMMOX process.
- Kinetic and stoichiometric constants were integrated, and parameters adjusted based on experimental analysis.
Main Results:
- Model III demonstrated high predictive accuracy for effluent data across all operational phases, with low Mean Relative Error (MRE) for nitrogen removal efficiency (1.96%), removal rate (4.36%), and loading rate (2.54%).
- Model III also showed good agreement with experimental alkalinity and pH values (MRE -7.19% and -0.35%, respectively).
Conclusions:
- The study confirms the reliability and high predictive capability of ANAMMOX process modeling using BioWin®.
- The developed simulation constants and modeling framework are suitable for application in full-scale ANAMMOX system design and development.
