[1]付德宇,席银,刘志远,等.农村污水处理站工艺及自控系统改造与运行效果[J].中国给水排水,2025,41(22):105-110.
FUDe-yu,XIYin,LIUZhi-yuan,et al.Optimization and Transformation of Processes and Automatic Control Systems in Rural Sewage Treatment Stations and Operation Effects[J].China Water & Wastewater,2025,41(22):105-110.
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FUDe-yu,XIYin,LIUZhi-yuan,et al.Optimization and Transformation of Processes and Automatic Control Systems in Rural Sewage Treatment Stations and Operation Effects[J].China Water & Wastewater,2025,41(22):105-110.
农村污水处理站工艺及自控系统改造与运行效果
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第41卷
期数:
2025年第22期
页码:
105-110
栏目:
出版日期:
2025-11-17
- Title:
- Optimization and Transformation of Processes and Automatic Control Systems in Rural Sewage Treatment Stations and Operation Effects
- Keywords:
- rural sewage treatment; automatic control system transformation; process optimization; energy saving and consumption reduction; unattended mode
- 摘要:
- 以西南地区某农村污水处理站为研究对象,针对其原单一固化运行模式的自控痛点问题,通过将原单一纯膜移动床生物膜反应器(MBBR)工艺改造为多模式(A2O+AO、A2O+AA或SBR+AO)固定膜活性污泥系统(IFAS)工艺,并重构进水量与罐体运行数量,以及进水水质与处理工艺的联锁自控逻辑,以实现不同进水条件下运行模式的自动切换。改造后,该污水处理站的处理效率和运行稳定性显著提高,出水TP、NH3-N和TN平均浓度分别为0.25、1.81、10.19 mg/L,远优于《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。同时,吨水的电费、碳源及聚合氯化铝(PAC)费用成本分别降低20%、50%和57.14%,整体运行成本下降34.53%。该工艺和自控系统改造方案适用于进水量和水质波动大,或需无人值守、定期巡检的农村污水处理设施升级改造。
- Abstract:
- Taking a rural sewage treatment station in Southwest China as the research object, aiming at the automatic control problem of its original single solidification operation mode, the original single pure membrane moving bed biofilm reactor (MBBR) process of the station was transformed into a multi-mode (A2O+AO, A2O+AA or SBR+AO) fixed membrane activated sludge system (IFAS) process, and the influent volume and tank operation quantity, as well as the interlocking automatic control logic of influent quality and treatment process were reconstructed for realizing the automatic switching of the operation mode of the station under different influent conditions. After the transformation, the treatment efficiency and operation stability of the station were significantly improved, and the average concentrations of TP, NH3-N and TN in effluent were 0.25 mg/L, 1.81 mg/L and 10.19 mg/L, respectively, which were far better than the first-class A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). At the same time, the power consumption cost of per ton sewage, the cost of carbon source and polyaluminum chloride (PAC) were reduced by 20%, 50% and 57.14%, respectively, and the overall operating cost was reduced by 34.53%. The process and automatic control system transformation scheme proposed in this study is particularly suitable for the upgrading and transformation of rural wastewater treatment facilities experiencing significant fluctuations in influent volume and quality, or those requiring unattended operation and regular inspections.
更新日期/Last Update:
2025-11-17