TY - JOUR
T1 - Enhanced phosphate anion flux through single-ion, reverse-selective mixed-matrix cation exchange membrane
AU - Wang, Xinyi
AU - Xiao, Minhao
AU - Kim, Sungsoon
AU - Zhang, Jeffrey
AU - Cha, Minju
AU - Dickinson-Cove, Anya
AU - Yang, Fan
AU - Lam, Kenji
AU - Im, Sungju
AU - Hou, Ziwei
AU - Wu, Jishan
AU - Ren, Zhiyong Jason
AU - Maravelias, Christos T.
AU - Hoek, Eric M.V.
AU - Jassby, David
N1 - Publisher Copyright:
© 2024
PY - 2024/12
Y1 - 2024/12
N2 - Phosphate recovery from wastewater is vital for both environmental sustainability and resource conservation, offering the dual benefit of reducing phosphate pollution while providing a valuable source of this essential nutrient. We previously reported an approach for synthesizing hydrous manganese oxide (HMO) nanoparticles within a polymeric cation-exchange membrane (CEM) to achieve a phosphate-selective mixed-matrix membrane (PhSMMM); however, the phosphate flux was lower than desired. Herein, we demonstrate a next-generation PhSMMM membrane with enhanced phosphate flux and selectivity. Experimental results confirm the successful incorporation of up to 28 wt% HMO nanoparticles into the polymeric CEM. The new PhSMMM exhibits a phosphate flux of 1.57 mmol∙m–2.hr–1 (an 8.5X enhancement), with selectivity over chloride, nitrate, and sulfate ions of 9, 11, and 104, respectively. This significant enhancement in phosphate flux marks a promising advancement in a sustainable solution for phosphate removal and recovery from wastewater.
AB - Phosphate recovery from wastewater is vital for both environmental sustainability and resource conservation, offering the dual benefit of reducing phosphate pollution while providing a valuable source of this essential nutrient. We previously reported an approach for synthesizing hydrous manganese oxide (HMO) nanoparticles within a polymeric cation-exchange membrane (CEM) to achieve a phosphate-selective mixed-matrix membrane (PhSMMM); however, the phosphate flux was lower than desired. Herein, we demonstrate a next-generation PhSMMM membrane with enhanced phosphate flux and selectivity. Experimental results confirm the successful incorporation of up to 28 wt% HMO nanoparticles into the polymeric CEM. The new PhSMMM exhibits a phosphate flux of 1.57 mmol∙m–2.hr–1 (an 8.5X enhancement), with selectivity over chloride, nitrate, and sulfate ions of 9, 11, and 104, respectively. This significant enhancement in phosphate flux marks a promising advancement in a sustainable solution for phosphate removal and recovery from wastewater.
KW - Ion-exchange membrane
KW - Mixed-matrix
KW - Phosphate
KW - Reverse-selective
KW - Single-ion selective
UR - https://www.scopus.com/pages/publications/85205837812
UR - https://www.scopus.com/pages/publications/85205837812#tab=citedBy
U2 - 10.1016/j.memlet.2024.100086
DO - 10.1016/j.memlet.2024.100086
M3 - Article
AN - SCOPUS:85205837812
SN - 2772-4212
VL - 4
JO - Journal of Membrane Science Letters
JF - Journal of Membrane Science Letters
IS - 2
M1 - 100086
ER -