Feedback control is based on measurement of the response whereas feedforward control is based on measurement of the disturbance. Utilities have implemented ammonium-based aeration control based on feedback and feedforward strategies. The approaches described offer the potential to enhance treatment performance, reduce operating costs and, in some cases, even generate revenue from nutrient credits. Here, we identify several control strategies. However, the applicable control strategy for a particular facility depends on specific factors including system configuration, performance requirements (discharge limitations), and wastewater characteristics. The simple answer is that automation of aeration based on ammonium measurement would be beneficial for many facilities. Many more are wondering if it is right for them. For example, aeration control using ammonium as a response variable in addition to or in place of dissolved oxygen (DO).Īmmonium-based aeration control has already been implemented at many water resource recovery facilities (WRRF). The introduction of simple, reliable, and affordable in situ sensors based on ion selective electrode (ISE) technology provides the opportunity for more advanced activated sludge control strategies. Wastewater Ammonia Based Aeration Control Find a Systems Regional Integration Center.Bioprocessing and Online Monitoring & Control.Wastewater Process Monitors and Sensors.
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