Bouchy, L.1, Hazard, B.2, Froom, M.2, 1CreaTech360, Spain, 2Te-Tech Process Solutions, UK
(free)Abstract
Advanced aeration controllers have been around for several years in operating wastewater treatments
plants (WWTPs). The next level is addressing multiple goals (not always aligned) with a holistic
process line view: Actual key performance indicators (KPIs) must address global targets such as
NetZero and provide its value through tangible benefits. We will illustrate this through an example of
the wastewater treatment works of Lleida, Spain, showing how intelligent process control enabled:
i)Taming a complex process configuration;
ii) addressing ever stringent consent limits (at the same time reducing chemicals use and its carbon footprint) and reducing energy demand
iii) unlocking further efficiencies through synergies (unlocked by holistic control, such as air production, oxygen demand, bio-P removal, mixed liquor recirculation and wastage rate.
Keywords
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