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1. 发明专利

JPH1034174A U-TUBE-SHAPED OZONE TREATMENT APPARATUS 失效
公开(公告)号：JPH1034174A
公开(公告)日：1998-02-10
申请号：JP19260996
申请日：1996-07-23
申请人： FUJI ELECTRIC CO LTD
发明人： IWAMOTO TAKUJI , KATO YASUHIRO , MORIOKA TAKAYUKI , TAKAHASHI RYUTARO
IPC分类号： C02F1/78 , B01F1/00 , B01F3/04 , B01F5/06
摘要： PROBLEM TO BE SOLVED: To provide a U-tube-shaped ozone treatment apparatus having high ozone absorbing ratio even with respect to ozonized gas low in the concn. of ozone and having a shallow ozone treatment tank. SOLUTION: In a U-tube-shaped ozone treatment apparatus having a falling dissolving pipe 23 receiving water 1p to be treated and ozonized gas 1g from a head top part and dissolving ozone in water to be treated during gas-liquid mixed falling flow of water to be treated and ozonized gas and a rising reaction pipe 24 treating water with dissolved ozone during rising flow, a diffuser 32 is attached to the ozonized gas introducing port 31 of the head top part of the falling dissolving pipe and ozonized gas is passed through a diffuser to be blown into water to be treated.

2. 发明专利

JPH09206769A DOWNWARD INJECTING TYPE OZONE TREATING DEVICE 失效
公开(公告)号：JPH09206769A
公开(公告)日：1997-08-12
申请号：JP1857596
申请日：1996-02-05
申请人： FUJI ELECTRIC CO LTD
发明人： KATO YASUHIRO , MORIOKA TAKAYUKI , TAKAHASHI RYUTARO
IPC分类号： C02F1/00 , B01F1/00 , C02F1/50 , C02F1/58 , C02F1/78
摘要： PROBLEM TO BE SOLVED: To keep a flow rate of a water to be treated subjected to gas-liq. mixing within a fixed range and secure stable ozone treatment by allowing the water to be treated less than a specified flow rate to flow downward in the first flow passage under a constant head difference and allowing the water to be treated above the specified flow rate to flow downward in the second flow passage. SOLUTION: The minimum flow rate of the water to be treated is allowed to flow downward in the first flow passage 8, and the water to be treated above the minimum flow rate is allowed to flow into the second flow passage 11 by interposing the first overflow part 10 and allowed to flow downward. Then the water to be treated which is subjected to gas-liq. mixing by diffusing a gaseous ozone from an ozone diffuser 3 to the water to be treated flowing in the flow passage 9 and the water to be treated flowing in the second flow passage 11 are joined at a joining point 2, and after allowing the jointed water to flow upward in the third flow passage 5, the jointed water is allowed to flow in a residence tank 14 having a partition plate 15 through the second overflow part 13 and discharged from a discharge port 6. And the unreacted ozone out of the gaseous ozone injected in the water to be treated at that time is subjected to the gas-liq. separation at the upper part of the first flow passage 5, and after decomposing at a waste ozone treating device, discharged out of system.

3. 发明专利

JPH07246392A WATER TREATMENT USING OZONE 失效
公开(公告)号：JPH07246392A
公开(公告)日：1995-09-26
申请号：JP3747194
申请日：1994-03-09
申请人： FUJI ELECTRIC CO LTD
发明人： SHIGENIWA TAKEO , OKADA MITSUMASA , MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , TAKAHASHI RYUTARO
IPC分类号： C02F1/58 , C02F1/78
摘要： PURPOSE:To promote the formation of a highly oxidative hydroxy radical (OH.) by adding oxalic acid to efficiently remove trace org. matter contained in water. CONSTITUTION:Oxalic acid is injected into the water to be treated immediately before being introduced into a reaction tank, then ozone is diffused into the reaction tank, hence a hydroxy radical (OH.) is formed by the chain reaction forming a hydroxy radical (O2.) from oxalic acid and ozone and a hydroperoxy radical (HO2.) from oxalic acid and hydroxy radical (OH.), and trace org. matter in the water is efficiently decomposed.

4. 发明专利

JPH07195092A DESCENDING DISSOLUTION TYPE OZONE REACTION CHAMBER 失效
公开(公告)号：JPH07195092A
公开(公告)日：1995-08-01
申请号：JP102494
申请日：1994-01-11
申请人： FUJI ELECTRIC CO LTD
发明人： KATO YASUHIRO , MORIOKA TAKAYUKI , OOHANAMORI HIDEYUKI , TAKAHASHI RYUTARO
IPC分类号： C02F1/00 , C02F1/50 , C02F1/78
摘要： PURPOSE:To lower the ascending speed of air bubbles in an ascending section of a reaction chamber so as to make the speed nearly equal to the ascending speed of water to be treated and thereby, to obviate generation of short circuit flow and dead water area by disposing members for suppressing the rising speed of the air bubbles consisting of gaseous ozone in the rising section of the reaction chamber. CONSTITUTION:The water 4 to be treated is introduced by a water feed pump 3 into the ozone treating device of a descending dissolution type from an introducing port 2 in the upper part of the reaction chamber 1 formed to a U shape and simultaneously, the gaseous ozone is injected as the air bubbles 7 from a gas diffusion device 6. The mixed flow composed of the water 4 to be treated and the air bubbles 7 falls in the descending dissolution section 1a of the reaction chamber 1 and passes the ascending section 1b until the mixed flow is discharged as treated water 9 from a discharge port 8. Plural sheets of shielding plates 13 are alternately disposed as the bodies 12 for suppressing ascending of the air bubbles within the ascending section 1b of such constitution. As a result, the ascending speed of the air bubbles 7 in the ascending section 1b is so lowered as to be nearly equalled to the ascending speed of the water 4 to be treated, by which the generation of the short circuit flow and the dead water area is obviated.

5. 发明专利

JPH07155775A WATER TREATMENT USING OZONE 失效
公开(公告)号：JPH07155775A
公开(公告)日：1995-06-20
申请号：JP30315193
申请日：1993-12-03
申请人： FUJI ELECTRIC CO LTD
发明人： SHIGENIWA TAKEO , OKADA MITSUMASA , MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , TAKAHASHI RYUTARO
IPC分类号： C02F1/78
摘要： PURPOSE:To promote the formation of hydroxyl radical (OH.) having a high oxidizing power by adding glycine to efficiently remove the trace org. matter contained in water. CONSTITUTION:Glycine is injected into water to be treated immediately before being introduced into a reaction tank, ozone is diffused into the reaction tank, hence the hydroxyl radical (OH.) is formed by the chain reaction including a hydroxyl radical forming reaction between the glycine and ozone and a hydroperoxy radical (HO2.) forming reaction between the glycine and hydroxyl radical (OH.), and the trace org. matter in the water is efficiently decomposed.

6. 发明专利

JPH06269786A METHOD FOR CONTROLLING OZONE INJECTION IN WATER TREATING PROCESS 失效
公开(公告)号：JPH06269786A
公开(公告)日：1994-09-27
申请号：JP20706691
申请日：1991-08-20
申请人： FUJI ELECTRIC CO LTD
发明人： SHIGENIWA TAKEO , OKADA MITSUMASA , MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , SHIMIZU KOJI , HOSHIKAWA HIROSHI
IPC分类号： C02F1/00 , C02F1/78
摘要： PURPOSE:To inject ozone neither too much nor too little at the time of treating water to remove the musty substance by compensating the effect of the humus and carbonic acid in raw water on the decomposition of musty substance. CONSTITUTION:The ozone generated by an ozonizer 3 is diffused into the raw water contg. musty substance introduced into a reaction tank 1 through a diffuser pipe 2 to decompose the musty substance in the water treating process. The concn. of the total org. carbon(TOC) and total carbonic acid concn. in the raw water are measured by a TOC analyzer 5, an appropriate amt. of ozone necessary to decompose the musty substance in the raw water is obtained by a computing element 6 by using specified algorithm based on the measured values, and the result is outputted to a control part 7 to control the amt. of ozone to be generated from the ozonizer 3.

7. 发明专利

JPH0623377A WATER TREATMENT METHOD USING OZONE 失效
公开(公告)号：JPH0623377A
公开(公告)日：1994-02-01
申请号：JP603892
申请日：1992-01-17
申请人： FUJI ELECTRIC CO LTD
发明人： SHIGENIWA TAKEO , OKADA MITSUMASA , MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , SHIMIZU KOJI , TAKAHASHI RYUTARO
IPC分类号： C01B13/10 , C02F1/78
摘要： PURPOSE:To accelerate the decomposition, to miniaturize a reaction tank and to reduce plottage, at a time when ozone is diffused into water to be treated guided to the reaction tank to oxidize and decompose a trace amount of the org. substance in water to be treated, by injecting an aromatic compd. into water to be treated. CONSTITUTION:Ozone from an ozone generator 5 is diffused into water to be treated guided to a reaction tank 1 or water to be treated immediately before introduced into the reaction tank to oxidize and decompose a trace amount of the org. substance contained in water to be treated. At this time, an aromatic compd., for example, one of phenol, benzoic acid and dodecylbenzenesulfonic acid is injected in water to be treated to treat the water to be treated. A hydroxy radical is effectively formed by radical chain reaction having hydroxy radical forming reaction due to an aromatic compd. being an org. substance and ozone and hydroxy radical forming reaction due to the aromatic compd. and a hydroxy radical to efficiently decompose a trace amount of the org. substance.

8. 发明专利

JPH04273022A FOAMING DETECTION METHOD FOR WATER TREATMENT DEVICE AND DEFOAMING DEVICE 失效
公开(公告)号：JPH04273022A
公开(公告)日：1992-09-29
申请号：JP3325891
申请日：1991-02-28
申请人： FUJI ELECTRIC CO LTD
发明人： MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , TAKAHASHI RYUTARO
IPC分类号： B01D19/02 , C02F1/00 , G01F23/24 , G01N27/06
摘要： PURPOSE:To control deforming operation with foaming produced on a water surface in a reaction tank detected by combinedly using an ultrasensitive electrode type level meter responding to water or foam and a general use electrode type level meter responding to only water. CONSTITUTION:Bubble is generated in water with air diffusing tubes 8 in a reaction tank 1. Either of foam or water is judged for the foam 9 grew up on a water surface with an ultrasensitive type level switch 10 having an operating resistant sensitivity of several MOMEGA or more and a general use level switch 11 having an operating resistant sensitivity of several KOMEGA or more. Then liquid in a tank 2 is sprayed on the foam 9 from a washing spray nozzle 15 with a high pressure pump 14 to wash an electrode rod 12. Concurrently the liquid in the tank 2 is sprayed in an upper space 19 in a reaction tank 1 from a defoaming spray nozzle 18 with a high pressure pump 16 to dissolve the foam 9 expanding in the reaction tank 1, in water.

9. 发明专利

JPH0471687A WATER TREATING DEVICE USING OZONE AND DEFOAMING METHOD THEREOF 失效
公开(公告)号：JPH0471687A
公开(公告)日：1992-03-06
申请号：JP18115890
申请日：1990-07-09
申请人： FUJI ELECTRIC CO LTD
发明人： MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI
IPC分类号： B01D19/02 , C02F1/78
摘要： PURPOSE:To efficiently remove the foam generated in a contact tank by mounting a water flow control plate to the water treating device having a flow regulating tank and the contact tank 18 and controlling the water flow from the flow regulating tank to the contact tank. CONSTITUTION:The water flow control plate 21 having an inclination with a water surface is mounted slight apart from the water surface near the partition plate 16 in the contact tank 18. The water 2 to be treated flowing into a reaction tank 1 collides against the water flow control plate 21 and flows down along the partition plate 16 to the contact tank 18. On the other hand, the passage rate of the ozonizing air from an air diffusion pipe 11a is decreased and the passage rate of the ozonizing air from an air diffusion pipe 11b is increased, to generate swirling flow in the water 2 to be treated in the contact tank 18. The bubbles 20 accumulating on the water surface are moved to the place of the water flow control plate 21 by this swirling flow and are thereafter withdrawn into the contact tank 18 together with the water 2 to be treated flowing into the spacing between the water flow control plate 21 and the partition plate 16. Then, the stagnation of the bubbles in the space part 16 is obviated.

10. 发明专利

JPH02157700A DEVICE FOR TREATING WASTE ION EXCHANGE RESIN 失效
公开(公告)号：JPH02157700A
公开(公告)日：1990-06-18
申请号：JP31106088
申请日：1988-12-09
申请人： FUJI ELECTRIC CO LTD
发明人： MOTOYAMA NOBUYUKI , MORIOKA TAKAYUKI , HOSHIKAWA HIROSHI
IPC分类号： G21F9/30 , B09B3/00 , G21F9/00
摘要： PURPOSE:To execute the economical operation of the device for treating waste ion exchange resins by monitoring the flow rate of the exhaust gas generated from a reaction chamber while hydrogen peroxide is kept supplied at a specified rate to the reaction chamber. CONSTITUTION:A heat medium, such as silicone oil, is packed into a heating jacket 2 and the heat medium is circulated and fed between the jacket and an oil bath 3 equipped with a heater by means of a pump 4. On the other hand, the waste ion exchange resins, the hydrogen peroxide and the catalysts of iron ions, copper ions, etc., are respectively fed into a waste resin storage tank 5. The hydrogen peroxide is fed into the reaction chamber by means of flow rate-variable pumps 8, 9 and the catalysts are fed therein by means of a catalyst pump 10. A waste liquid pipe 13 leading to a waste liquid tank 12 is drawn out to the bottom of the reaction chamber 1. The waste liquid of decomposition contg. the sludge-like residues is recovered through the waste liquid pipe 13 into a waste liquid tank 12.

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