Patent ID: 9708203
Date: 2017-07-18
CPC Classifications: C02F

Claim:
1. A method for removing organic matters by immobilized-enzymatic electrode coupled electro-coagulation, comprising the steps of: 1) coupling electro-coagulation and an immobilized-enzymatic electrode in a single electrochemical system in which the cathode is an oxygenating electrode with an immobilized enzyme and the anode is an electro-coagulation sacrificial electrode; 2) separating the cathode and the anode in an electrolytic tank by a hydrogen ion exchange membrane to form a cathode chamber and an anode chamber; 3) introducing a raw water into the cathode chamber; subjecting the organic matters in the raw water to a polymerization reaction catalyzed by hydrogen peroxide generated from a cathode reaction and the immobilized-enzymatic electrode, under a certain cathode potential or a certain current density with a saturated calomel electrode as a reference electrode; and pumping the reacted raw water into the anode chamber after a certain residence time; and 4) generating fresh hydrolysis products by dissolving the metal anode in the anode chamber, under a certain anode potential or a certain current density with a saturated calomel electrode as a reference electrode; precipitating and removing the organic polymerized products, which are produced from an enzymatic catalysis reaction in the cathode chamber, by metal hydrolysis products through a coagulation/flocculation effect of compression of a double electric layer, adsorption and electric neutralization as well as precipitation capture; and discharging the treated water from the anode chamber after an electro-coagulation reaction so as to achieve the object of removing the organic matters synergistically through the enzymatic catalyzed polymerization at the cathode and the electro-coagulation at the anode.