Patent ID: 11964893
Assignee: KEITH ERVIN
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 15:
16. A method of water treatment comprising:
providing water comprising at least one contaminant;
adding a geopolymer filter media to the water;
agitating the water comprising at least one contaminant and the geopolymer filter media to form a homogeneous mixture;
adsorbing the at least one contaminant from the water onto the geopolymer filter media;
adding a cationic biopolymer to the homogeneous mixture of water and the filter media;
coagulating the geopolymer filter media and the at least one contaminant with the cationic biopolymer to form coagulated flocs; and
separating the water from the at least one contaminant and the geopolymer filter media by settling of the coagulated flocs;
wherein the geopolymer filter media comprises a geopolymer having an affinity for one or both of phosphate and nitrate.