Phosphate recovery from the P-enriched brine of AnMBR-RO-IE treating municipal wastewater via an innovated phosphorus recovery batch reactor with nano-sorbents

Municipal wastewater is a very unique pool full of energy and useful substances. Though the innovative integrated anaerobic membrane bioreactor reverse osmosis-ion exchange (AnMBR-RO-IE) process can produce high-grade reclaimed water with high efficiency, phosphorus resources recovery in WWTPs has been rarely reported thus far. This study evaluated feasibility batch reactor (PRBR) as an approach for phosphate production from P-enriched brine AnMBR-RO-IE. With operating PRBR 162 cycles, to 85% P rate was obtained 145 leading 6.17 g/m3 domestic nano-sorbents (NSs) consumption 10.2 g/m3. Acidification pretreatment efficiently improved adsorption capacity reduced NSs renewing frequency. High selectivity contributed low impurities (<0.3%) solution. Moreover, AnMBR-RO-IE-PRBR saved 47% compared present NEWater Singapore. The competitive commonly-used chemical precipitation methods conventional terms recovery/loss balance. It expected that proposed offer new insights into direction reclamation future WWTPs.