A^2/O工艺脱氮除磷数值模拟研究

Simulation Study of Nitrogen and Phosphorus Removal in A^2/O Wastewater Treatment Process

为了优化控制A2/O工艺脱氮除磷效果,基于AS-AD数学模型,以BioWin3.1软件为模拟平台,对A2/O中试模型进行数值模拟研究。根据模拟结果与实验的对比,COD与氨氮模拟结果与实际相差较小,总氮和磷方面误差较大。通过分析原因,提出了消除误差的方法。研究表明,BioWin3.1软件可以较好地模拟A2/O污水处理工艺的脱氮除磷效果,可为系统的控制与优化提供参考依据。

In order to optimally control the denitrification and phosphorus removal effect of A2/O process, based on the AS-AD model and the BioWin3.1 software, the A2/O pilot model is numerically simulated. The comparisons between the simulated results and experimental data show that the simulated COD and ammonia nitrogen are in agreement with the experimental ones, and that the simulated total ni- trogen and phosphorus have differences from the experimental ones. Based on the cause of the simulation errors, the methods of eliminating errors are improved. The research shows that the BioWin3.1 software can precisely simulate the denitrification and phosphorus removal effect of A2/O process, and can provide reference basis for the control and optimization of the A2/O process.