HAO Er-cheng,GUO Yi,LIU Wei-yan,et al.Operation Analysis of Wastewater Treatment Plant Based on Mathematical Simulation: Modeling and Examination[J].China Water & Wastewater,2020,36(15):23-28.
基于数学模拟的污水厂运行分析——建模与体检
- Title:
- Operation Analysis of Wastewater Treatment Plant Based on Mathematical Simulation: Modeling and Examination
- Keywords:
- wastewater treatment plant; process simulation; historical monitoring data; model calibration; digitalization
- 摘要:
- 在北美、欧洲、南非等国家和地区, 污水处理工艺模拟已经广泛应用于污水处理的开发、设计、提标改造和优化运行管理等方面,成为污水处理行业的标准实践。在国内,污水处理工艺模拟应用起步较晚,正处于发展阶段。应用工艺模拟技术对污水处理厂进行管理,一方面可以大大提高运营管理水平;另一方面也可为实现智慧化水厂奠定基础。以东莞大岭山连马污水处理厂作为示范,建立并校正了该污水处理厂的工艺模型,应用模型对污水处理厂运行现状进行体检,寻找边界运行条件。结果表明,在设计流量条件下的运行过程中,当MLSS低于3 000 mg/L、进水TN高于20 mg/L时,出水氨氮有超标风险;当进水TN达到36 mg/L时,若要保证出水水质稳定达标,COD必须大于200 mg/L,当MLSS为6 000 mg/L时,最大处理水量为8.5×104 m3/d。
- Abstract:
- In North America, Europe, South Africa and other regions, wastewater treatment process simulation has been widely used in the development, design, upgrading and optimization of wastewater treatment plants (WWTPs) management, and has become a standard practice in the wastewater treatment industry. In China, the simulation of wastewater treatment process started late and is in the development stage. On the one hand, the application of process simulation technology to the management of WWTPs can greatly improve the level of operational management. On the other hand, it can also lay a foundation for intelligent WWTPs. A process model of Dalingshan Lianma WWTP in Dongguan City, Guangdong was set up and calibrated. The calibrated model was then used to analyze the operation of the process and find boundary operational conditions. When MLSS was lower than 3 000 mg/L and total nitrogen of influent was higher than 20 mg/L under the design flow rate, ammonia nitrogen in the effluent had the risk of exceeding the standard. When the total nitrogen of influent reached 36 mg/L, COD must be greater than 200 mg/L so as to meet the effluent standards, when MLSS was 6 000 mg/L, the maximum treatment capacity was 8.5×104 m3/d.
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