Patent ID: 7404907

Claim:
A process for removal and recovery of APFO from water using electrosorption forming a diffuse electrical double layer on charged electrodes comprising the steps of: a) obtaining an aqueous solution of 1-ppb (part per billion) to 100-ppm (parts per million) APFO; b) inserting into the solution two stainless steel electrodes connected by alligator clips and coated electrode wires to a DC current; c) current flow attracting and adsorbing by double-layer electrosorption the ions formed by the dissociation of APFO; d) removing APFO by removing APFO-contaminated electrodes are removed from solution or by suction-removal of liquid adjacent to the electrodes; e) rinsing APFO-contaminated electrodes with acetone and evaporating the acetone or by placing electrodes into distilled water and reversing the current.