Abstract
This work presents a novel demonstration-scale integration of a 36-m2 Fresnel solar collector in urban wastewater reclamation. A prototype plant was designed and installed to study Escherichia coli and total coliforms disinfection in continuous flow mode. The plant modelling was empirically addressed, resulting in different linear first-order models, which were used to design a PI-based cascade control approach for the automatic operation of the photoreactor. Considering EU 2020/741 Regulation, water quality Class D and Class A were achieved when operating the upgraded design of the plant at 50°C (200 L/h) and 60°C (150 L/h), respectively.
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