Application of air mixing to improve ferric dosing efficiency, meet new p consents and reduce operational costs: PRESENTATION ONLY

Dean Herron, Technical Director, Aqua Operations, UK


2020-2025 investment through the WINEP will account for ~£5.2 billion of asset improvements, investigations, monitoring, and catchment interventions. 53% of all planned AMP7 enhancement expenditure on P removal, driven by UWWTD and WFDChemical costs for P removal can account for upto 12% of total OPEX.

Economic and Environmental Impacts Approach:
1. Flow and load – assess the seasonal/daily/diurnal load patterns
2. Jar testing and digital twin models to reduce errors3. Dose based on diurnal loads/more sophisticated instrumentation…
However if dose dispersion and reaction conditions are not optimised in the field, there is risk of underperformance and excess chemical usage

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