Process for electrocoagulating waste fluids
AssigneesIra B. Vinson, Tom G. Gavrel
InventorsTom Gus Gavrel, David W. Otto, Ira B. Vinson
Life of this patent
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Abstract
An electrocoagulation process for removing organic and metal contaminants from a pressurized waste fluid is disclosed in which a clarified waste fluid is produced when the pressure is released.
Claims41
An electrocoagulation process for removing organic, particulate and metal contaminants from a waste fluid to form a clarified waste fluid, comprising the steps of:
- (a) supplying said waste fluid to a reactor vessel having a plurality of substantially parallel electrolytic plates, said electrolytic plates having a positive or a negative charge provided by a power supply;
- (b) increasing the pressure of said waste fluid;
- (c) reacting said charged electrolytic plates with said organic and metal contaminants in said waste fluid to form precipitate particles and dissolved gases that remain in solution in said pressurized waste fluid;
- (d) reducing the pressure of said waste fluid to release said dissolved gases and to cause said precipitate particles to rise in said vessel;
- and
- (e) removing said precipitate particles from said vessel to form said clarified waste fluid.
An electrocoagulation process for removing organic, particulate and metal contaminants from a waste fluid to form a clarified waste fluid, comprising the steps of:
- (a) supplying said waste fluid to a reactor vessel having a plurality of substantially parallel electrolytic plates, said electrolytic plates having a positive or a negative charge provided by a power supply;
- (b) increasing the pressure of said waste fluid;
- (c) adding an oxidizing agent, said oxidizing agent selected from the group consisting of oxygen, chlorine, permanganate, hydrogen peroxide and ozone;
- (d) reacting said charged electrolytic plates with said organic and metal contaminants in said waste fluid to form precipitate particles and dissolved gases that remain in solution in said pressurized waste fluid;
- (e) reducing the pressure of said waste fluid to release said dissolved gases and to cause said precipitate particles to rise in said vessel;
- and
- (f) removing said precipitate particles from said vessel to form said clarified waste fluid.
An electrocoagulation process for removing organic, particulate and metal contaminants from a waste fluid to form a clarified waste fluid, comprising the steps of:
- (a) supplying said waste fluid to a reactor vessel having a plurality of substantially parallel electrolytic plates, said electrolytic plates having a positive or a negative charge provided by a power supply;
- (b) increasing the pressure of said waste fluid;
- (c) reacting said charged electrolytic plates with said organic and metal contaminants in said waste fluid to form precipitate particles and dissolved gases that remain in solution in said pressurized waste fluid;
- (d) reducing the pressure of said waste fluid to release said dissolved gases and to cause said precipitate particles to rise in said vessel;
- (e) removing said precipitate particles from said vessel to form said clarified waste fluid;
- and
- (f) recycling at least a portion said clarified waste fluid stream to said reactor vessel.
An electrocoagulation process for removing organic, particulate and metal contaminants from a waste fluid to form a clarified waste fluid, comprising the steps of:
- (a) supplying said waste fluid to a reactor vessel having a plurality of substantially parallel electrolytic plates, said electrolytic plates having a positive or a negative charge provided by a power supply;
- (b) increasing the pressure of said waste fluid;
- (c) adding an oxidizing agent, said oxidizing agent selected from the group consisting of oxygen, chlorine, permanganate, hydrogen peroxide and ozone;
- (d) reacting said charged electrolytic plates with said organic and metal contaminants in said waste fluid to form precipitate particles and dissolved gases that remain in solution in said pressurized waste fluid;
- (e) reducing the pressure of said waste fluid to release said dissolved gases and to cause said precipitate particles to rise in said vessel;
- (f) removing said precipitate particles from said vessel to form said clarified waste fluid;
- and
- (g) recycling at least a portion said clarified waste fluid stream to said reactor vessel.
An apparatus for treating organics, particulates and metal contaminates in a waste fluid using electrocoagulation, comprising:
- a collection means having an inlet for collecting said waste fluid;
- a reactor vessel in fluid communication with said collection means, said reactor vessel having a vessel pressure and a plurality of substantially parallel positively and negatively charged electrolytic plates;
- a power supply connected to said electrolytic plates, said power supply provides a voltage that causes said contaminants to react with said electrolytic plates to form dissolved gases and precipitate particles in said waste fluid;
- a pressurizing means in fluid communication with said reactor vessel for pressurizing said waste fluid to said vessel pressure of said reactor vessel;
- a flotation chamber in fluid communication with said reactor vessel, said flotation chamber having a chamber pressure below said vessel pressure so that dissolved gases evolve from said waste fluid causing said precipitate particles to float to a fluid surface for removal to form a clarified waste fluid.
Dependencies are inferred from the claim text.