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1. 发明专利

JPH02103499A DEHYDRATING PROCESS DEVICE OF RADIOACTIVE WASTE LIQUID 失效
公开(公告)号：JPH02103499A
公开(公告)日：1990-04-16
申请号：JP25493788
申请日：1988-10-12
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI
IPC分类号： G21F9/06 , G21F9/00
摘要： PURPOSE:To dehydrate a concentrated waste liquid produced in a nuclear facility to contrive the sharp volume reduction of a radioactive waste by performing electric permeation by the use of a vessel made of metal having electrodes made of metal capable of allowing water to flow. CONSTITUTION:A vessel 2a made of metal has electrodes 2b made of metal capable of allowing water to flow. A filter medium 3b is stuck on a supporter 3a made of metal and a filter assembly 3 is inserted in the vessel made of metal. An electrode 2b made of metal is hollow-cylindrical and the filter assembly 3 is inserted therein so as not to touch. An insulator 4 electrically isolate the filter assembly 3 from the vessel 2a made of metal. The electrode 2b made of metal and the supporter 3a made of metal become electrodes, and water and a suspended solid in the waste liquid are electrically charged respectively to move to separate electrodes so as to separate water from the solid by applying d.c. voltage on this. The moved water is collected in a water collection tank 5 through the filter assembly 3 to drain out of the outside.

2. 发明专利

JPH01199605A DESALTING FILTER 失效
公开(公告)号：JPH01199605A
公开(公告)日：1989-08-11
申请号：JP2270388
申请日：1988-02-04
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , SHIRAI TAKAMORI
IPC分类号： G21F9/06 , B01D61/14 , B01D61/18 , B01D61/20 , B01D61/22 , B01D63/02 , B01D65/02 , B01J47/12 , B01J49/00 , G21F9/00 , G21F9/12
摘要： PURPOSE:To miniaturize the system and to eliminate the generation of secondary waste and a chemical regenerative soln. by incorporating a hollow fiber membrane filter having an ion-exchange group capable of being regenerated by hot water in the filter base material into the title filter, and carrying out filtration and desalting by the same filter. CONSTITUTION:Valves V1, V2, and V3 are opened, and a liq. to be treated is passed from a pipeline 2. When the differential pressure of the desalting filter reaches the reference value or the ion concn. of the treated water approaches the inlet concn., the valves V1 and V3 are closed, valves V4 and V5 are opened, backwashing hot water is passed from a pipeline 5 through a pipeline 3 to release the suspended matter deposited on the surface of the hollow fiber membrane filter, or the ion-exchange group is regenerated. When backwashing is finished, the valves V4 and V5 are closed, the valves V1 and V3 are opened, and then the liq. to be treated is again introduced into the main vessel 1 of the desalting filter from the pipeline 2 and treated.

3. 发明专利

JPS63265199A RADIOACTIVE WASTE LIQUID TREATMENT SYSTEM 失效
公开(公告)号：JPS63265199A
公开(公告)日：1988-11-01
申请号：JP9870487
申请日：1987-04-23
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , SUZUKI TAKEO , INAMI ICHIRO , SHOJI YUICHI
IPC分类号： G21F9/06 , G21F9/00 , G21F9/12
摘要： PURPOSE:To obtain treated water low in the concn. of radioactivity by well separating a radioactive nuclide into an ionic nuclide and the nuclide following a suspensible solid. CONSTITUTION:The waste liquid to be regenerated or concentrated collected in a tank 1 is transferred to an electroosmotic treatment apparatus 3 by a pump 2 to be separated into a solid and a liquid. The treated water after solid- liquid separation is collected in a tank 4 and discharged out of the system as it is by a pump 5 through valves 6, 7 when radioactive concn. is sufficiently low. When the radioactive concn. of the treated water is high, said treated water is transferred to an electric ion exchange treatment apparatus 9 by the pump 5 through a valve 8 to remove the ionic nuclide in the waste liquid. The treated water treated by the apparatus 9 is discharged out of the system through a valve 10. By this method, treated water low in the concn. of radioactivity is obtained.

4. 发明专利

JPS62137595A PROCESSOR FOR RADIOACTIVE SLUDGE 失效
公开(公告)号：JPS62137595A
公开(公告)日：1987-06-20
申请号：JP27791085
申请日：1985-12-12
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , MATSUMOTO KANAME , MATSUDA TAKESHI
IPC分类号： C02F11/00 , G21F9/00 , G21F9/06 , G21F9/30

5. 发明专利

JPH02102745A ION EXCHANGE BODY FOR TREATMENT OF WASTE LIQUID 失效
公开(公告)号：JPH02102745A
公开(公告)日：1990-04-16
申请号：JP25585188
申请日：1988-10-13
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , SHIRAI TAKAMORI
IPC分类号： G21F9/12 , B01J39/08 , B01J47/00 , C02F1/42 , G21F9/00
摘要： PURPOSE:To obtain an ion exchange body which can be used in a column process without increasing pressure drop by encapsulating a powdery ion exchange body in a capsule consisting of an org. or an inorganic material having fine pores. CONSTITUTION:A powdery ion exchange body 4 is encapsulated in a capsule 1 consisting of an org. or an inorganic material having fine pores. Obtd. ion exchange body can be used in a column process without increasing its pressure drop. Thus, treatment of waste liquid is performed conveniently by a column process without decreasing the capacity for separation and collection of a powdery ion exchange body.

6. 发明专利

JPH01227013A POTENTIAL MEASURING TYPE FLOWMETER 失效
公开(公告)号：JPH01227013A
公开(公告)日：1989-09-11
申请号：JP5160588
申请日：1988-03-07
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI
IPC分类号： G01F1/56
摘要： PURPOSE:To enable the precise measurement of a flow rate of a liquid of low electric conductivity, such as pure water, by a method wherein a pipe made of plastic and having an outer surface coated with an electrode is surrounded by a pipe electrode made of metal and a potential between them is measured. CONSTITUTION:A pipe 2 made of plastic and having an outer surface coated with an electrode is surrounded by a pipe electrode 3 made of metal so that they are spaced at a prescribed gap from each other. An electrometer 5 is connected between the pipe 2 and the electrode 3 through a lead wire 6, while a shield 4 preventing the disturbance at the time of measurement of a potential is provided. A flowmeter 1 thus prepared is disposed in a piping, and a flow rate is measured by measuring a potential generated between the pipe 2 and the pipe electrode 3 being caused by the mutual rubbing of insulators. This method enables the precise measurement of the flow rate of a fluid of low conductivity, such as pure water (such as desalted water), which can not be measured by a conventional electromagnetic flowmeter. In addition, the structure is made simple and the installation can be performed simply.

7. 发明专利

JPS63255696A PROCESSOR FOR WASTE LIQUOR CONTAINING SLUDGE 失效
公开(公告)号：JPS63255696A
公开(公告)日：1988-10-21
申请号：JP8870987
申请日：1987-04-13
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , MATSUMOTO KANAME , MATSUDA TAKESHI , ABE KAZUAKI , WAKAMATSU TOSHIFUMI
IPC分类号： G21F9/22

8. 发明专利

JPS62266499A METHOD OF PROCESSING RADIOACTIVE WASTE LIQUOR 失效
公开(公告)号：JPS62266499A
公开(公告)日：1987-11-19
申请号：JP10962886
申请日：1986-05-15
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , NEMOTO KUNIYOSHI , WADA MIKIO
IPC分类号： G21F9/10

9. 发明专利

JPS62237909A FILTER 失效
公开(公告)号：JPS62237909A
公开(公告)日：1987-10-17
申请号：JP8105986
申请日：1986-04-10
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： MATSUMOTO KANAME , SEKI HIDEJI , SAKAI HITOSHI
IPC分类号： G21F9/06 , B01D63/04 , G21C19/30 , G21C19/307 , G21F9/00
摘要： PURPOSE:To obtain a reusable miniaturized filter wherein trapping capacity of sludge is large and both backwash and discharge of sludge stuck on a hollow yarn membrane filter are enabled by providing a cover body having an inlet nozzle and an outlet nozzle and providing a cylindrical body which perforates both the cover body and a tube plate for fitting the hollow yarn membrane filter. CONSTITUTION:A tube plate 3 for fitting a filter is fixed to the inside of a vessel main body 1 of a filter 10 wherein a hollow yarn membrane filter 4 is attachably and detachably fitted thereto by a screwing means or the like, and a small-diameter cylinder 5 which forms an inlet nozzle 5a in a cover body 2 and perforates the tube plate 3 and elongates down to the bottom of the vessel is provided and furthermore an outlet nozzle 8 is provided to the central part of the cover body 2 and an injection nozzle 9 is provided to the outer peripheral part thereof. Water to be treated which is fed from an atomic power establishment or the like is introduced through the inlet nozzle 5a and sludge is removed by the filter 4 and treated water is discharged through the outlet nozzle 8. When filter function is reduced, back pressure is imparted to a hollow yarn membrane 4a by an air compressor to peel a stuck cladding and water contg. sludge is discharged through the inlet nozzle 5a together with the air current.

10. 发明专利

JPH02103500A RADIOACTIVE WASTE LIQUID DISPOSAL DEVICE 失效
公开(公告)号：JPH02103500A
公开(公告)日：1990-04-16
申请号：JP25493888
申请日：1988-10-12
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： SEKI HIDEJI , SHIRAI TAKAMORI
IPC分类号： G21F9/06 , G21F9/00 , G21F9/12
摘要： PURPOSE:To reduce a load by suspended solids and another load by ion components for a demineralizing tower to contrive the improvement of water quality of processing water by mounting the demineralizing tower in the downstream side of a hollow-thread filter in which an ion exchange function is given. CONSTITUTION:After waste liquid is put in a hollow-thread filter 1 in which an ion exchange function is given to treat therein, and suspended solids and ion components are captured, it is sent in a demineralizing tower 2 to remove the remaining suspended solids and the ion components. The hollow-thread in which the ion exchange function is given is one in which chloromethyl styrene and methacrylic acid are graft-polymerized with polyethylene. Thereby the production of wastes reduces without any labor for filling of filter aid. Further, since the hollow-thread filter can be backwashed, it can be used.

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