Back to results
US 12,145,128 B2Granted
Engineered calcium alginate and uses thereof
AssigneeWashington University
InventorsYoung-Shin Jun, Doyoon Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to biodegradable materials and methods of removing using the biodegradable materials to remove phosphorus from water. Additionally, the biodegradable materials may be used as a fertilizer.
Claims7
A method of recovering or removing a nutrient from an aqueous medium, the method comprising:
- adding a sodium alginate solution comprising phosphate ions to a calcium bath with a base to form a plurality of spherical calcium alginate beads having embedded calcium phosphate seed minerals;
- contacting the aqueous medium with the plurality of calcium alginate beads having embedded calcium phosphate seed minerals under conditions and for a time effective to immobilize the nutrient by calcium phosphate solid nucleation, wherein the nutrient is at least one of phosphorus and nitrogen.
Dependencies are inferred from the claim text.