US5114549A
Expired / Lapsed
US
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Method and apparatus for treating water using electrolytic ozone
Assignee: ThyssenKrupp Nucera Japan Ltd
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Filing: 1991-10-29
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Granted: 1992-05-19
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Expires: 2011-10-29
Abstract
Abstract A method and apparatus for water treatment is described, using electrolytic zone, which comprises electrolyzing water to generate an ozone-containing gas in the anode compartment of an electrolytic cell, separating the ozone-containing gas from the anolyte, and contacting the separated ozone-containing gas with the water to be treated said water to be treated being different than the water for electrolysis.
Inventors
- 👤 Takayuki Shimamune
- 👤 Shuji Nakamatsu
- 👤 Isao Sawamoto
- 👤 Hiroshi Masuda
- 👤 Yoshinori Nishiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:10
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/78; C25; C25B; C25B1/00; C25B1/01; C25B1/13
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
85 words
A method of water treatment using electrolytic ozone, which comprises electrolyzing water in an electrolytic cell comprising an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capacity to generate an ozone-containing gas in the anode compartment of the electrolytic cell, separating the ozone-containing gas from the anolyte, and contacting the separated ozone-containing gas with the water to be treated, said water to be treated being different than the water for electrolysis.
Claim 2
Independent Claim
85 words
A method of water treatment using electrolytic ozone, which comprises electrolyzing water in an electrolytic cell comprising an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capacity to generate an ozone-containing gas in the anode compartment of the electrolytic cell, separating the ozone-containing gas from the anolyte, and contacting the separated ozone-containing gas with the water to be treated, said water to be treated being different than the water for electrolysis.
Claim 3
Independent Claim
134 words
A method of water treatment using electrolytic ozone, the water to be treated being divided into a main portion and a branched portion, which comprises electrolyzing water in an electrolytic cell comprising an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capacity to generate an ozone-containing gas in the anode compartment of the electrolytic cell, separating said gas from the anolyte, contacting the separated ozone-containing gas with the water of the branched portion to establish a predetermined concentration of ozone in said water of the branched portion, and mixing said branched portion with the main portion of water to effect overall treatment of said water to be treated, said water to be treated being different than the water for electrolysis.
Claim 4
Independent Claim
134 words
A method of water treatment using electrolytic ozone, the water to be treated being divided into a main portion and a branched portion, which comprises electrolyzing water in an electrolytic cell comprising an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capacity to generate an ozone-containing gas in the anode compartment of the electrolytic cell, separating said gas from the anolyte, contacting the separated ozone-containing gas with the water of the branched portion to establish a predetermined concentration of ozone in said water of the branched portion, and mixing said branched portion with the main portion of water to effect overall treatment of said water to be treated, said water to be treated being different than the water for electrolysis.
Claim 5
Independent Claim
76 words
An apparatus for water treatment, comprising: an electrolytic cell for the generation of an ozone-containing gas having an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capability; means for separating the ozone containing gas from the anolyte; and means for contacting the ozone-containing gas separated from the anolyte, with the water to be treated to dissolve the ozone-containing gas into the water.
Claim 6
Independent Claim
76 words
An apparatus for water treatment, comprising: an electrolytic cell for the generation of an ozone-containing gas having an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capability; means for separating the ozone containing gas from the anolyte; and means for contacting the ozone-containing gas separated from the anolyte, with the water to be treated to dissolve the ozone-containing gas into the water.
Claim 7
Independent Claim
117 words
An apparatus for water treatment, comprising: supply means for the water to be treated, said supply means including a branched portion and a main portion; an electrolytic cell for the generation of an ozone-containing gas having an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capability; means for separating the ozone containing gas from the anolyte; means for contacting the ozone-containing gas separated from the anolyte with the water of the branched portion to dissolve the ozone-containing gas into the water; and means for mixing the water of the branched portion containing the dissolved ozone-containing gas with the water of the main portion.
Claim 8
Independent Claim
117 words
An apparatus for water treatment, comprising: supply means for the water to be treated, said supply means including a branched portion and a main portion; an electrolytic cell for the generation of an ozone-containing gas having an anode compartment and a cathode compartment separated by an ion-exchange membrane having on the anode side thereof an anodic substance of ozone-generating capability; means for separating the ozone containing gas from the anolyte; means for contacting the ozone-containing gas separated from the anolyte with the water of the branched portion to dissolve the ozone-containing gas into the water; and means for mixing the water of the branched portion containing the dissolved ozone-containing gas with the water of the main portion.
Claim 9
Dependent Claim
27 words
An apparatus as in claim 3, wherein said contacting means comprises a conduit carrying the water to be treated, said ozone-containing gas being injected into the conduit.
Claim 10
Dependent Claim
27 words
An apparatus as in claim 4, wherein said contacting means comprises a conduit carrying the water of branched portion, said ozone-containing gas being injected into the conduit.
Claim 11
Dependent Claim
37 words
An apparatus as in claim 4, wherein said contacting means comprises a dissolving tower having a diffusing filter at the bottom of the tower, said ozone-containing gas being supplied to the dissolving tower through the diffusing filter.
Claim 12
Dependent Claim
14 words
An apparatus as in claim 4, wherein said mixing means comprises a reaction tank.
Claim 13
Dependent Claim
24 words
An apparatus as in claim 4, wherein said electrolytic cell having electrode active materials attached to opposite sides of a solid electrolyte polymer diaphragm.
Claim 14
Dependent Claim
23 words
A method as in claim 2, wherein the water of the branched portion constitutes 5 to 30% of the water to be treated.
Claim 15
Dependent Claim
23 words
An apparatus as in claim 4, wherein the water of the branched portion constitutes 5 to 30% of the water to be treated.
Claim 16
Dependent Claim
18 words
A method as in claim 1, wherein the anodic substance of ozone generating capacity is lead dioxide powder.
Claim 17
Dependent Claim
25 words
A method as in claim 1, wherein the ozone-containing gas generated in the anode compartment has an ozone content of at least 15 wt. %.
Claim 18
Dependent Claim
18 words
A method as in claim 2, wherein the anodic substance of ozone generating capacity is lead dioxide powder.
Claim 19
Dependent Claim
25 words
A method as in claim 2, wherein the ozone-containing gas generated in the anode compartment has an ozone content of at least 15 wt. %.
Claim 20
Dependent Claim
17 words
An apparatus as in claim 3, wherein the anodic substance of ozone-generating capability is lead dioxide powder.
Claim 21
Dependent Claim
25 words
An apparatus as in claim 3, wherein the ozone-containing gas generated in the anode compartment has an ozone content of at least 15 wt. %.
Claim 22
Dependent Claim
17 words
An apparatus as in claim 4, wherein the anodic substance of ozone-generating capability is lead dioxide powder.
Claim 23
Dependent Claim
25 words
An apparatus as in claim 4, wherein the ozone-containing gas generated in the anode compartment has an ozone content of at least 15 wt. %.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |