IP Library Granted Patent US 7,704,399
Granted Patent B2
US 7,704,399 · App. 11/807,792 · Granted Apr 27, 2010

Hydrogen peroxide based water treatment method

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Quick Facts
Patent No.
US 7,704,399
App. No.
11/807,792
Granted
Apr 27, 2010
Kind
B2
Abstract

A system and method for the treatment of water for human consumption using a naturally occurring inorganic catalyst working within a pH range between 3 and 13, combining the inorganic catalyst at 3 parts per million to an oxidant, primarily hydrogen peroxide and a metal salt used as a coagulant and a primary catalyst, resulting in an efficient and economical phasic water purification and filtration system and process. The inorganic catalyst is a zeolite a synthetic zeolite or preferably chabazite.

Claims (51)

1. A water treatment method for the treatment of water for safe human consumption, applied to a water treatment system obtaining water from a water source by a pump directing said water through an inlet valve of a transmission line to a tank battery and a filter bank having at least one filter column, said water treatment system comprising the steps of:

adding a metal salt catalyst at a first injection point in said transmission line from a first reservoir through a first injection line;

adding hydrogen peroxide at a second injection point in said transmission line from a second reservoir through a second injection line, wherein said hydrogen peroxide and metal salt form hydroxyl ions, free radical oxygen, hydrogen and supply valence transfer to reduce any organic contaminants in said water to inert substances;

adding air, if necessary, at a third injection point in said transmission line from an air compressor through a third injection line;

adding a disinfectant at a fourth injection point in said transmission line from a fourth reservoir through a fourth injection line to remove excess hydrogen peroxide remaining after the chemical reaction between said metal salt catalyst and hydrogen peroxide;

transferring contents of said transmission line to a detention tank battery, having at least a flash mix tank, for detention of said water for a period of up to five hours;

adding Bentonite clay and powder activated carbon to said flash mix tank forming a residual sludge blanket, to remove small organic contaminants and to clear said water; and

passing said water from said detention tank battery to said filter bank having said at least one filter column for further delivery for human consumption and use.

2. The water treatment method as disclosed in claim 1 , wherein said metal salt catalyst is selected from a group of metal comprising aluminum, iron, magnesium or manganese.

3. The water treatment method as disclosed in claim 1 , wherein said disinfectant at said fourth injection point is chlorine dioxide.

4. The water treatment method as disclosed in claim 1 , wherein said metal salt catalyst

is ferric sulfate or ferric chloride in a 50-60% concentration and said disinfectant is chlorine dioxide.

5. A water treatment method for the treatment of water for safe human consumption, applied to a water treatment system obtaining water from a water source by a pump directing said water through an inlet valve of a transmission line to a tank battery and a filter bank having at least one filter column, said water treatment system comprising the steps of:

adding a metal salt catalyst at a first injection point in said transmission line from a first reservoir through a first injection line;

adding hydrogen peroxide at a second injection point in said transmission line from a second reservoir through a second injection line, wherein said hydrogen peroxide and metal salt form hydroxyl ions, free radical oxygen, hydrogen and supply valence transfer to reduce any organic contaminants in said water to inert substances;

adding air, if necessary, at a third injection point in said transmission line from an air compressor through a third injection line;

adding a disinfectant at a fourth injection point in said transmission line from a fourth reservoir through a fourth injection line to remove excess hydrogen peroxide remaining after the chemical reaction between said metal salt catalyst and hydrogen peroxide;

transferring contents of said transmission line to a detention tank battery, having at least a flash mix tank, for detention of said water for a period of up to five hours;

adding Bentonite clay and powder activated carbon to said flash mix tank forming a residual sludge blanket, to remove small organic contaminants and to clear said water;

adding a coagulant, comprising a cationic, anionic or ionic coagulant, or a mixture of said coagulant, to said flash mix tank to coagulate any excess ash product or turbidity; and

transferring said water from said detention tank battery to said filter bank having said at least one filter column for further delivery for human consumption and use.

6. The water treatment method as disclosed in claim 5 , wherein said metal salt catalyst is selected from a group of metal comprising aluminum, iron, magnesium or manganese.

7. The water treatment method as disclosed in claim 5 , wherein said disinfectant at said fourth injection point is chlorine dioxide.

8. The water treatment method as disclosed in claim 5 , wherein said coagulant is selected from a group comprising ferric sulfate, ferric chloride, alum, or aluminum chlorohydrate, and is provided to coagulate any excess ash product or turbidity prior to filtration.

9. The water treatment method as disclosed in claim 5 , wherein:

said metal salt catalyst is ferric sulfate or ferric chloride in a 50-60% concentration;

said disinfectant is chlorine dioxide; and

said coagulant is selected from a group comprising ferric sulfate, ferric chloride, alum, or aluminum chlorohydrate, and is provided to coagulate any excess ash product or turbidity prior to filtration.

10. A water treatment method for the treatment of water for safe human consumption, applied to a water treatment system obtaining water from a water source by a pump directing said water through an inlet valve of a transmission line to a tank battery and a filter bank having at least one filter column, said water treatment system comprising the steps of:

adding a metal salt catalyst at a first injection point in said transmission line from a first reservoir through a first injection line;

adding hydrogen peroxide at a second injection point in said transmission line from a second reservoir through a second injection line, wherein said hydrogen peroxide and metal salt form hydroxyl ions, free radical oxygen, hydrogen and supply valence transfer to reduce any organic contaminants in said water to inert substances;

adding air, if necessary, at a third injection point in said transmission line from an air compressor through a third injection line;

transferring contents of said transmission line to a detention tank battery, having at least a flash mix tank, for detention of said water;

adding a zeolite, catalyst, to said flash tank for detention within said flash mix tank for a period of two to forty minutes, to expedite and enhance chemical reactions of said metal salt and hydrogen peroxide and to enhance reduction of organic contaminants in said water;

adding Bentonite clay and powder activated carbon to said flash mix tank forming a residual sludge blanket, to remove small organic contaminants and to clear said water;

adding a coagulant, comprising a cationic, anionic or ionic polymer, or a mixture of said coagulants, to said flash mix tank to coagulate any excess ash product or turbidity;

transferring said water from said detention tank battery to said filter bank having said at least one filter column; and

adding a disinfectant chlorine to said filter bank to eliminate any remaining hydrogen peroxide residual in said water and to further clarify said water upon delivery of said water for human consumption and use.

11. The water treatment method as disclosed in claim 10 , wherein said metal salt catalyst is selected from a group of metal comprising aluminum, iron, magnesium or manganese.

12. The water treatment method as disclosed in claim 10 , wherein said coagulant is selected from a group comprising ferric sulfate, ferric chloride, alum, or aluminum chlorohydrate, and is provided to coagulate any excess ash product or turbidity prior to filtration.

13. The water treatment method as disclosed in claim 10 , wherein said zeolite is chabazite.

14. The water treatment method as disclosed in claim 10 , wherein said zeolite is chabazite and has on site cations including calcium, sodium, potassium, aluminum and iron which will exchange with other elemental contaminants or organics from numerous substrates making it multi-functional and works well within a pH range of 3 to 13, and with the addition of additional acids, will also lower pH to enhance coagulation.

15. The water treatment method as disclosed in claim 10 , wherein:

said metal salt catalyst is ferric sulfate or ferric chloride in a 50-60% concentration;

said disinfectant is chlorine dioxide; and

said coagulant is selected from a group comprising ferric sulfate, alum, an amine, or aluminum chlorohydrate, and is provided to coagulate any excess ash product or turbidity prior to filtration.

16. The water treatment method as disclosed in claim 10 , wherein:

said metal salt catalyst is ferric sulfate or ferric chloride in a 50-60% concentration;

said disinfectant is chlorine dioxide;

said coagulant is selected from a group comprising ferric sulfate, alum, an amine, or aluminum chlorohydrate, and is provided to coagulate any excess ash product or turbidity prior to filtration; and

said zeolite is chabazite and has on site cations including calcium, sodium, potassium, aluminum and iron which will exchange with other elemental contaminants or organics from numerous substrates making it multi-functional and works well within a pH range of 3 to 13, and with the addition of additional acids, will also lower pH to enhance coagulation.

Continuity (3)
Continuation In Part 1115199300 · Jun 14, 2005
Provisional Application 6057988800 · Jun 15, 2004
Related Publication 20070256979A1 · Nov 8, 2007