Removal and Recovery of Ammonium and Phosphate from Wastewater Using a Redox Flow Deionization Cell (RFDC)

• DOI: 10.1021/acsestwater.2c00644
• Publication Date: 2023-03-03T13:00:59Z
• Authors: Abdulrahman Alkhaldi; Abdullah Alsultan; Khaled Alsaikhan; Rongxuan Xie; Jialu Li; Zhenmeng Peng

Ammonium (N) and phosphate (P) are key nutrients used in different applications, particularly fertilizers for food production. They present at levels domestic industrial wastewater, discharging of which without removing these can cause serious harm to the environment. This work studies use redox flow deionization cells (RFDCs) as a new method N P removal, demonstrating their merits high energy efficiency, continuous operation, ion removal channel meanwhile concentrating ions concentration channel. The effects wastewater applied cell voltage on RFDC performances, including average salt rate, electrical consumption, were investigated with experiments. influences coexisting (Na+, Cl–) also examined. findings show that regardless presence ions, be rapidly completely removed from stream meantime concentrated stream. study demonstrates RFDCs an effective, efficient strategy together recovery, suggesting great potential this technology treatment.