LIU Chen,FAN Xue?hong,XU Yao?peng.Calculation and Discussion of Multi?stage AO Process Based on Japanese Sewage Works Agency[J].China Water & Wastewater,2022,38(2):49-53.
基于日本下水道事业团的多级AO工艺计算与探讨
- Title:
- Calculation and Discussion of Multi?stage AO Process Based on Japanese Sewage Works Agency
- 摘要:
- 多级AO工艺具有脱氮效率高、可减少回流电耗等优点，已在国内污水处理厂逐步推广应用。最新的《膜生物反应器城镇污水处理工艺设计规程》（T/CECS 152—2017）在工艺选择时，为提升脱氮效果，也推荐采用两级或多级AO-MBR工艺，但国内规范对多级AO工艺计算方法尚不明确，而日本下水道事业团的计算方法对其工艺原理、设计参数取值都给出了比较明确的说明，并有较多的实例验证，具有较强的可实施性。结合深圳市福田污水处理厂工艺设计实例，介绍了基于日本下水道事业团的多级AO工艺计算方法，并对比其他计算方法进行探讨，认为采用等比例进水方式下，其工艺计算方法简洁且后期运行管理方便。
- Abstract:
- The multi?stage AO process has the advantages of high nitrogen removal efficiency and low return power consumption, and has been gradually applied in domestic wastewater treatment plants. The latest Technical Specification for Design of Membrane Bioreactor Process for Municipal Wastewater Treatment (T/CECS 152-2017) recommends two?stage or multi?stage AO?MBR process to be selected in process selection to improve denitrification performance. However, the calculation method of the multi?stage AO process is not clear in domestic standards. By contrast, the calculation method proposed by Japanese Sewage Works Agency gives a clear description of the process principle and values of the design parameter, and has been verified by many examples, which has strong practicability. Combined with the process design example of Futian wastewater treatment plant in Shenzhen, the calculation method of the multi?stage AO process based on Japanese Sewage Works Agency was introduced and compared with other calculation methods. It is considered that the process calculation method is simple and the future operation management is convenient under the equal proportion inflow.
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