“…Traditional and enhanced processes for the biological removal of P during natural and waste water treatments are generally not able to sustainably achieve such low effluent P concentrations (Kumar et al, 2019). The dosing of aluminium-or iron-based salts is a common approach in sewage treatment plants in order to secure an ultra-low level effluent with respect to P (Nakarmi et al, 2020;White et al, 2021). However, as P is a non-renewable resource, not only removal, but also recovery and recapture of the discharged P is strategically important for environmental sustainability (Pan et al, 2020).…”