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US 12,722,987 B2Granted
Process for controlled adsorption and desorption of phosphate from liquids using phosphate-selective proteins
AssigneeMarquette University
InventorsBrooke Mayer, Kaushik Venkiteshwaran
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Abstract
The present invention provides systems and methods for concentrating and recovering phosphate from samples. The method comprises using immobilized PBP for binding phosphate and a desorption solution having a pH of 11 or greater to recover phosphate from a sample when the phosphate is found at very low detection levels. Further systems and method for removing arsenate for water sources is also provided.
Claims8
A method of removing arsenate from a water source, the method comprising:
- (a) exposing a liquid sample to immobilized phosphate binding protein (PBP) for a sufficient amount of time to bind arsenate to the immobilized PBP within the sample;
- (b) removing the arsenate bound immobilized PBP from the sample;
- and
- (c) contacting the immobilized PBP with a desorption solution having a pH of 11 or greater to desorb the arsenate from the immobilized PBP.
1 more element
Dependencies are inferred from the claim text.