Electric arc for aqueous fluid treatment
AssigneeGlobal Water Holdings, LLC
InventorsMICHAEL FRAIM, SANJEEV JAKHETE
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Abstract
An aqueous fluid treatment method and system is provided which preferably uses a 3 step electro-chemical oxidation process to remove organic contaminates from water. A high surface area electro-chemical reaction cell can be employed to remove organic particles and precipitate hardness salts from the aqueous solution. Several 3-phase spark arcs generated mixed oxidants and acoustic cavitations to remove dissolved organic compounds and oxidize organic metal compounds in the next step. Finally, a dielectric discharge in aqueous foam is used to eliminate recalcitrant organic compounds such as, but not limited to, polychlorinated aromatics, disinfectants, pesticides, and pharmaceuticals before release to environment or recycled.
Claims20
A mixed oxidant generator comprising:
- a single dielectric medium having a first surface and second surface;
- three active electrodes acting as one anode and two cathodes and adapted for connection to a high voltage three phase DC pulse power supply, each electrode of said three active electrodes having a first end and a second end, said plurality of electrodes secured to said single dielectric medium such that said first end of each electrode extends out of said dielectric medium at said second surface of said dielectric medium, said dielectric medium serving as an insulator between portions of said plurality of electrodes disposed within said dielectric medium;
- and
- a gas delivery member having a first end and a second end secured to said dielectric medium, said gas delivery member also serving as a passive ground return electrode;
- wherein said single dielectric medium housing the three active electrodes and the gas delivery member serving as a passive ground return electrode.
A method for treating fluid comprising the steps of:
- (a) providing a source of fluid;
- (b) directing the source of fluid into an electro-chemical cell
- (c) oxidizing bulk reactive organic material contained in the source of fluid for the fluid in the electro-chemical cell;
- (d) directing the source of fluid out of the electro-chemical cell and into a reactor pipe;
- (e) providing a source of gas and creating electro-spark array in the reactor pipe reactor to generate ozone in the gas phase and hydroxyl radicals in the liquid phase, wherein the hydroxyl radicals oxidize chloro-carbon compounds and ethylene oxide compounds and wherein cavitation is generated in the liquid phase within the reactor pipe and to promote mixing of the oxidant;
- (f) creating a pulse discharge in oxygen gas foam;
- wherein oxygen plasma generated inside each individual bubble will react with fluoro-carbon compounds.
Dependencies are inferred from the claim text.