LIUYanxu,YUANFei,WEIMingzhi.Development and Application of an Intelligent Aeration System for Wastewater Treatment Plants Based on Time-dimension Multivariate Analysis[J].China Water & Wastewater,2026,42(12):156-162.
时间维度多变量分析智能曝气系统开发及工程应用
- Title:
- Development and Application of an Intelligent Aeration System for Wastewater Treatment Plants Based on Time-dimension Multivariate Analysis
- Keywords:
- intelligent aeration; dissolved oxygen; electricity consumption; ammonia nitrogen; time-dimension multivariate analysis
- 摘要:
- 针对污水处理厂传统曝气过度、能耗偏高、水质调控精度低的问题，以上海某污水处理生产线为例，开发了基于时间维度多变量分析的智能曝气系统，通过软硬件一体化改造实现曝气量的动态精准调控。该智能曝气系统上线后，生物反应池好氧区末廊道氨氮控制在目标值（1 mg/L）以下的比例高达98.2%（优于上线前的84.2%），有效降低了出水氨氮超标的风险；生物反应池好氧区末廊道溶解氧实际值与目标值偏差在±0.3 mg/L以内的数值占83.3%（优于上线前的50.9%），偏差为±0.5 mg/L的数值占93.3%（优于上线前的64.5%）；生物反应池曝气系统电耗节约17%。该系统实现连续稳定运行，抗进水水质波动能力强，改造成本低、投资回报周期短，在处理规模为20万m3/d以上的污水处理厂推广后节约电费超过100 万元/a。
- Abstract:
- Aiming at the problems of excessive aeration, high energy consumption and low precision of water quality regulation in the traditional aeration control of wastewater treatment plants, an intelligent aeration system based on time-dimension multivariate analysis was developed by taking a wastewater treatment production line in Shanghai as the engineering object, and the dynamic and precise regulation of aeration volume was realized through the integrated transformation of software and hardware. After the intelligent aeration system was put into operation, the proportion of ammonia nitrogen concentration in the final corridor of the aerobic zone in the biological reaction tank that was controlled below the total value (1 mg/L) reached as high as 98.2% (surpassing the 84.2% before the system was put into operation), which effectively reduced the risk of effluent ammonia nitrogen exceeding the standard. After the system was commissioned, 83.3% of the total values of the actual dissolved oxygen concentration in the final aerobic zone corridor deviated from the target value within ±0.3 mg/L (exceeding the 50.9% before commissioning), and 93.3% of the total values deviated within ±0.5 mg/L (exceeding the 64.5% before commissioning). In addition, the intelligent aeration system achieved a 17% reduction in electricity consumption of the aeration system in the biological reaction tank after the system was put into operation. The system features excellent stability in continuous operation and strong resistance to influent quality fluctuations, with low renovation costs and a short investment payback period. When scaled up and applied to wastewater treatment plants with a treatment capacity of 200 000 m3/d and above, it can achieve an annual electricity cost saving of over 1 million CNY.
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