The first full-scale installation of the EcoRecover process at Roberts, Wisconsin demonstrated phosphorus recovery from secondary effluent via microalgal biomass cultivation 24-hours per day and across seasons. The focus period (November 1, 2022 through February 14, 2023; 106 days) began with a two week upset and recovery period, followed by 92 days (November 15, 2022 through February 14, 2023) of superior performance in which the system continuously achieved effluent (permeate) orthophosphate concentrations below 0.04 mg-P•L -1 (Figure ). Across the full focus period, the effluent total phosphorus concentration of 24-hour composite samples averaged 0.06 ± 0.11 mg-P•L -1 (0.03 ± 0.08 mg-P•L -1 orthophosphate; average ± standard deviation); within the 92-day period of excellent performance, the effluent total phosphorus concentration averaged 0.03 ± 0.03 mg-P•L -1 (0.01 ± 0.02 mg-P•L -1 orthophosphate). The influent ammonium concentration shifted significantly over the focus period as the upstream SBRs lost nitrification in December 2022 and total nitrogen increased in January 2023 (Figures ). As a result, effluent ammonia concentrations were highly variable (Figure ). Within the EcoRecover process, some nitrification was observed from November 1 to December 8, 2022, but nitrification was negligible from December 8, 2022 through February 14, 2023 (Figures and). The EcoRecover process was implemented specifically to achieve phosphorus removal, but future work could target sustained nitrification or integrate the system with complementary processes for nitrogen conversion or removal (e.g., denitrification filters).