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31. 发明专利

JPS5656220A PRESSURIZED WATER PREPARING APPARATUS 失效
公开(公告)号：JPS5656220A
公开(公告)日：1981-05-18
申请号：JP13192479
申请日：1979-10-15
申请人： HITACHI LTD
发明人： KUBOTA MASAYOSHI , TAKAHASHI SANKICHI , SAWA TOSHIO
IPC分类号： B01F1/00 , C02F1/24 , C02F1/40
摘要： PURPOSE:To simplify and miniaturize a structure as well as to enhance the dissolving efficiency by arranging a packing layer on a pressurized water recirculating flow passage in a tank so as to dissolve a gas sufficiently. CONSTITUTION:Into an upper lid 2 of a tank 1, a pressure meter connecting pipe 4 having a pressure meter 5 at an upper end thereof and a raw water supply pipe 3 are opened. To an upper portion in the tank 1, a liquid receiving portion 6 is provided and, to a bottom surface of the liquid receiving portion 6, a pipe 8 is provided along a center shaft in the tank 1 and a lower end of the pipe 8 is provided to a lower portion in the tank 1. Moreover, a gas introducing pipe 9 is pierced through a central bottom portion of the tank 1 and opened to a trumpet like portion of the pipe 8 by a nozzle 10. Further, in a lower portion of the liquid receiving portion 6, a packing layer 11 is formed on a lower porous plate 12 in the tank 1. To a lower portion of the porous plate 12, an excessive gas exhaust pipe is firstly opened and, to a further lower portion, a pressurized water exhaust pipe 14 is opened.

32. 发明专利

JPS55116488A TREATING METHOD FOR WASTE WATER AND ITS DEVICE 失效
公开(公告)号：JPS55116488A
公开(公告)日：1980-09-08
申请号：JP2449379
申请日：1979-03-05
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , TAKAHASHI SANKICHI
IPC分类号： C02F1/24 , C02F1/46 , C02F1/463 , C02F1/465
摘要： PURPOSE:To lengthen the regenerating disposal intervals of filling substance by a method wherein flow rectifying member materials are mounted to a floating separation portion, bubble groups, which rise, are accompanied by SS portions in waste water, and a liquid flow obtained by separating and removing the SS portions is filling-electrolyzed when disposing waste water by combining a floating separation method and a filling elecrrolysis method. CONSTITUTION:Waste water AA, whose SS portions are removed to a certain extent, is introduced into a feed tank 15, and supplied to a rising flow path 20 by means of a water feed port 20. The waste water rises with minute bubbles H, and SS portions I in the waste water are floated and separated. A layer of scum II is formed on the surface of a liquid, the waste water, most of SS portions thereof are removed, flows into a floating separating region 6 from a void between flow rectifying member materials 17a, 17b, one portion makes up a rising flow with the bubbles H, and one portion reaches an upper surface of a filling electrolysis region 7. The waste water passes among conductive substance 23 polarized, reaches the base of the electrolysis region 7, and is discharged as disposed water.

33. 发明专利

JPS5549188A TREATING METHOD AND APPARATUS FOR CONVERSION OF WASTE WATER TO INTERMEDIATE WATER 失效
公开(公告)号：JPS5549188A
公开(公告)日：1980-04-09
申请号：JP12274278
申请日：1978-10-06
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , KANEKO TOYOHIKO , TAKAHASHI SANKICHI
IPC分类号： C02F1/24 , C02F1/46 , C02F1/52
摘要： PURPOSE:To recover waste water as intermediate water to be used in toilet flushing and other purposes, by adding coagulant to waste water to float the suspended substance with air bubbles as scum, and floating fine suspended substance with bubbles of oxygen and hydrogen produced by hydrolysis, and adsorbing organic matter, etc. with active carbon. CONSTITUTION:Coagulant 5 such as aluminum sulfate is added to waste water 10 to be treated to adjust pH to 6-8, and is introduced into a floatation band 1 in the treating tank from a lower part 12. At the same time, air is dissolved in an air dissolving tank 3, and the air pressurized in a compressor 4 is introduced. The supended substance in the waste water is changed to scum 9 by the coagulant, and floats up with air bubbles produced from the pressurized water, and is discharged as overflow. The discharge water goes down in an electrolytic band 2, and passes through granular active carbon 7 charged in a supporting electode 6. Fine suspended substance is floated and removed by the bubbles of oxygen and hydrogen generated from the surface of active carbon 7 polarized by inter-electrode voltage. The organic matter, nitrogen compound and metal ions in the waste water are adsorbed and removed by the active carbon, so that intermediate water to be used as toilet flushing water and air conditioning water may be recovered.

34. 发明专利

JPS5534110A ACTIVATED CARBON REGENERATING METHOD 失效
公开(公告)号：JPS5534110A
公开(公告)日：1980-03-10
申请号：JP10562878
申请日：1978-08-31
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , KURODA OSAMU
IPC分类号： C02F1/28 , B01J20/34
摘要： PURPOSE:To regenerate simply and effectively granualr activated carbon, which has adsorbed matter, by electrolytically treating the carbon. CONSTITUTION:Square electrolytic cell 1 is provided with ferrite plate electrodes (anode and cathode) at both side parts. Granular activated carbon after adsorption is packed between electrodes 2. The eluate is stored in aq. sodium chloride soln. storage tank 3 set outside cell 1, and pump 4 is placed so that the eluate is fed to cell 1 from the bottom. In regenerating the carbon the aq. sodium chloride soln. is circulated through cell 1 to eluate inorg. ions, and then org. matter is oxidation- decomposed and removed with chlorine generated by supplying a current.

35. 发明专利

JPS5513116A PURIFICATION OF NIGHT SOIL TREATED WATER 失效
公开(公告)号：JPS5513116A
公开(公告)日：1980-01-30
申请号：JP8517578
申请日：1978-07-14
申请人： HITACHI LTD
发明人： SAWA TOSHIO , ADACHI TETSUROU , KUBOTA SHIYOUJI , TAKAHASHI SANKICHI , IKEMOTO NORIO
IPC分类号： C02F1/461 , C02F1/24 , C02F1/46 , C02F1/463 , C02F1/465 , C02F1/78
摘要： PURPOSE:To perform effectively decoloration, strilization, and denitrification by treating night soil deprived of hinderances for ozonization in advance by the combined used of ozonization and electrolysis. CONSTITUTION:Original polluted water, e.g., night soil, etc., from the inflow distribution pipe 4 is sent to the floating zone 2, where suspensions present in original polluted water are buoyed up with the aid of the fine bubbles of hydrogen and oxygen given off between the anode 5 and the cathode 6 for removal. And the separated liquid is sent through the partition plate 14 to the electrolysis zone 3, where organics and nitrous acid ion present in the separated liquid are adsorbed and occluded by the granular active carbon 9 polarized by electrification in the zone 3. Afterwards, when ozone is jetted from the lower part of the active carbon 9, coloring matters and baceria present in the separated liquid are decolored and strilized, respectively. Thus, the effective purification of night soil, etc., can be attained with the combined use of coagulation and ozone-oxidation treatments.

36. 发明专利

JPS54150846A DISPOSAL OF EXHAUST WATER INCLUDING AMMONIUM FORM NITOROGEN 失效
公开(公告)号：JPS54150846A
公开(公告)日：1979-11-27
申请号：JP5721278
申请日：1978-05-16
申请人： HITACHI LTD
发明人： SAWA TOSHIO , TAKAHASHI SANKICHI
IPC分类号： C02F1/28 , C02F1/46 , C02F1/461 , C02F1/467
摘要： PURPOSE:To remove by attachment ammonium form nitrogen effectively and economically by introducing the exhaust water through particle active carbon layer which is supplied with direct current and attaching ammonium ions to the layer. CONSTITUTION:The exhaust water including ammonium form nitrogen is introduced through a flow-in pipe 9 into an electrolytic zone 2. The ammonium ions included in the waste water is removed by attachment by a particle active carbon layer in the electrolitic zone 2 which is powered by a direct current source 7. Then the disposed water is discharged out of a pipe 11. In case of the impressed voltage being high, the hydrogen and oxygen gases produced in the electrolytic zone 2 are discharged out of a pipe 12 provided in the upper portion of the disposing vessel 1. The regenerated waste water of a salt compound solution to be produced when the active carbon is regenerated is electrolytically disposed, and the ammonium ions are oxidized into nitrogen gas in the presence of the produced chlorine.

37. 发明专利

JPS5498041A EVAPORATION TYPE SYSTEM FOR CONVERTING SEAWATER INTO FRESH WATER 失效
公开(公告)号：JPS5498041A
公开(公告)日：1979-08-02
申请号：JP417978
申请日：1978-01-20
申请人： HITACHI LTD
发明人： MUTSUKUSHI TOSHIMI , TAKAHASHI SANKICHI , SAWA TOSHIO , NISHIMURA SHIGEOKI , MATSUMOTO TAKAYUKI
IPC分类号： C02F1/04 , B01D3/06
摘要： PURPOSE:To provide the subject system wherein a plurality of filters provided with elastic precision filtration films are connected as seed crystal recovering devices to the circulation path of exhaust brine and arranged so that filtration and inverse cleaning are alternately carried out through change-over valves, whereby adherence of scales to the circulation system is prevented. CONSTITUTION:Exhaust brine containing seed crystals is introduced by opening a change-over valve 24 into a filter 9 having a large number of filtration members formed by extending elastic filtration films on tubular supporters, and the brine not containing filtered seed crystals is exhausted through a valve 28. When a large quantity of seed crystals are adsorbed to the filtration film surface and hence the filtration pressure is increased, a change-over valve 25 is opened to change over to a filter 10 and to exhaust the brine not containing seed crystals through a valve 29. Upon this occasion, when valves 24 and 28 are closed but valves 26 and 30 are opened and an inverse washing pump 11 is operated, the brine not containing seed crystals flows into the filter 9 from the inverse direction and exfoliates and removes seed crystals which have been arrested by the filtration films, the seed crystals being supplied in the circulating brine together with the supplied seawater.

38. 发明专利

JPS5385545A APPARATUS FOR CIRCULATING COOLING WATER 失效
公开(公告)号：JPS5385545A
公开(公告)日：1978-07-28
申请号：JP14577
申请日：1977-01-05
申请人： HITACHI LTD
发明人： YAMADA AKIRA , IZUMI KENKICHI , SAWA TOSHIO , TAKAHASHI SANKICHI
IPC分类号： F28F19/00 , F28C1/00 , F28F19/01 , F28F25/02
摘要： PURPOSE:To maintain cooling water in a clean state by providing an electrolytic tank in an air conditioner circulation duct line system.

39. 发明专利

JPS5288577A TREATMENT OF WASTE LIQUID CONTAINING FLUORINE 失效
公开(公告)号：JPS5288577A
公开(公告)日：1977-07-25
申请号：JP501176
申请日：1976-01-21
申请人： HITACHI LTD , HITACHI PLANT ENG & CONSTR CO
发明人： NISHIMURA NARIOKI , SAWA TOSHIO , OOTANI KOUJI
IPC分类号： C02F1/58
摘要： PURPOSE:To remove fluorine in the waste liquid with a high efficiency, by adding phosphoric acid ion, calcium ion and moreover, some kind of speed.

40. 发明专利

JPS51110498A 失效
公开(公告)号：JPS51110498A
公开(公告)日：1976-09-30
申请号：JP3544475
申请日：1975-03-26
申请人： HITACHI LTD
发明人： NISHIMURA NARIOKI , SAWA TOSHIO , OOTANI KOJI , YOSHIKAWA SEIICHI
IPC分类号： C02F1/58 , C01B25/22 , C01F11/22

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