Patent ID: 9295974
Filing Date: 2016-03-29
CPC Classification: B01J

Claim Text:
1. A method for regeneration of a floating adsorbent for removal of phosphate, comprising: preparing a floating adsorbent which comprises a sponge and an amine functional group provided on the surface of the sponge comprising immersing the sponge in a mixture solution of 3-aminopropyltriethoxysilane (APTES) and anhydrous toluene, wherein the APTES and the anhydrous toluene are mixed at a volume ratio of 0.5-1:1; adsorbing phosphate from sewage or water using the floating adsorbent; and immersing the floating adsorbent in a 0.5-1 v/v % sulfuric acid solution to remove the phosphate captured on the surface of the floating adsorbent.