ASM2d模型在北京高碑店污水处理厂的应用

Application of ASM2d model in Gaobeidian Wastewater Treatment Plant in Beijing

描述了GPS-X模拟软件中国际水协(IWA)的ASM2d模型在北京高碑店污水处理厂应用的实例。该研究的目的包括:建立一个大型污水处理厂的模拟模型,以更好地理解生物处理过程;使用建立的模型寻求改善和优化污水处理厂脱氮除磷的方案。在应用中,模型的校准和验证是在已有资料基础上进行的,包括污水处理厂的设计和日常运行监测数据,这样就避免了在模拟大型污水处理厂的前期进行大量的专门研究工作。但是已有的数据不能直接作为模型的输入参数,需要把进水的COD、氮和磷的数据转化成适合于模型输入的各种组分。最后,使用经校准和验证的模型对改善污水处理厂的脱氮除磷进行了初步探讨。

The IWA ASM2d model, implemented in GPS-X simulator, was used to model Gaobeidian Wastewater Treatment Plant （WWTP） in Beijing. The obiectives of this study are to 1） develop a simulation model for this large scale WWTP to better understand biological processes; 2） use the simulation model to improve and optimize the plant behaviors for both N and P removal. The simulation model was calibrated and validated mainly based on the typically available information, such as plant design, operation and routine monitoring data, thus avoiding the need for specialized studies in the earlier stage of modeling large scale WWTPs. This requires converting influent COD, nitrogen and phosphorus matter into a variety of fractions because the available information is not suitable for model input. The calibrated and validated simulation model was used to improve the plant behaviors for N and P removal.