Method for selectively removing perfluorinated compounds with electrooxidation
AssigneeSK hynix Inc.
InventorsHae Sol Shin, Hyeong Soo Kim, No Hyeok Park, Yong Je Lee, Nam Jong Yoo, Young Hee Kim
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Abstract
A device for selectively removing a perfluorinated compound may include an adsorption electrooxidation tank including a reaction unit having a plurality of electrodes and granular activated carbon configured to oxidize and decompose a perfluorinated compound in raw water through adsorption and electrooxidation, a power supply device configured to supply power to the adsorption electrooxidation tank, and a head adjustment pipe unit configured to maintain a water level within the reaction unit at a height greater than or equal to a reaction height of the electrode.
Claims34
A method of selectively removing a perfluorinated compound, the method comprising:
- oxidizing and decomposing a perfluorinated compound contained in raw water through adsorption and electrooxidation in an adsorption electrooxidation tank that includes a reaction unit having a plurality of electrodes that are spaced apart and granular activated carbon disposed to fill spaces between the spaced-apart electrodes;
- and
- adjusting the raw water level within the reaction unit at a height greater than or equal to a reaction height of the electrodes using a head adjustment pipe unit during the electrooxidation,
- wherein the reaction height of the electrode is the vertical extent of the electrode which is immersed in the raw water within the reaction unit during electrooxidation.
A method of selectively removing a perfluorinated compound, the method comprising:
- oxidizing and decomposing a perfluorinated compound contained in raw water through adsorption and electrooxidation in an adsorption electrooxidation tank including a reaction unit comprising DSA (dimensionally stable anode) electrodes spaced apart and having a multi-electrode structure in which an anode and a cathode are disposed, and granular activated carbon disposed to fill spaces between the spaced-apart DSA electrodes;
- and
- adjusting the raw water level within the reaction unit at a height greater than or equal to a reaction height of the DSA electrodes using a head adjustment device during the electrooxidation,
- wherein the reaction height of the DSA electrode is the vertical extent of the DSA electrode that is immersed in the raw water within the reaction unit during electrooxidation.
A method of selectively removing a perfluorinated compound, the method comprising:
- pre-treating raw water before adsorption and electrooxidation;
- oxidizing and decomposing a perfluorinated compound contained in the pre-treated raw water through adsorption and electrooxidation in an adsorption electrooxidation tank including a reaction unit comprising DSA (dimensionally stable anode) electrodes spaced apart and having a multi-electrode structure in which an anode and a cathode are disposed, and granular activated carbon disposed to fill spaces between the DSA electrodes;
- and
- adjusting the pre-treated raw water level within the reaction unit at a height greater than or equal to a reaction height of the DSA electrodes using a head adjustment device during the electrooxidation,
- wherein the reaction height of the DSA electrode is the vertical extent of the DSA electrode which is immersed in the pre-treated raw water within the reaction unit during electrooxidation.
Dependencies are inferred from the claim text.