Demonstrates improved phosphate removal in synthetic wastewater using modified magnesium electrodes, indicating effective waste management methods.
The surface of magnesium (Mg) electrode was been modified by immersion pre-treatment of Mg in aqueous solution containing nano-sized inorganic particles, silica or layered double hydroxide (LDH), and a polymer for improving electrochemical phosphate ion removal from synthetic wastewater.Among the tested inorganics, polymers, and compositions, immersion pre-treatment in a solution containing nano-sized silica and poly(ethylene glycol) (PEG) (silica content of ca.0.4%) provided the highest electricity, the highest removal of phosphate ion, and the quickest formation of precipitate.Highly dispersed silica particles could enhance mass transfer at the interface region and increase phosphate ion conversion into magnesium ammonium phosphates (MAPs) through the enhancement of electrochemical reactions.
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Egashira et al. (2026) studied this question.
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