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71. 发明专利

JPS583691A APPARATUS FOR TREATING WATER WITH OZONE 失效
公开(公告)号：JPS583691A
公开(公告)日：1983-01-10
申请号：JP10120681
申请日：1981-07-01
申请人： HITACHI LTD
发明人： ADACHI TETSUROU , SAWA TOSHIO , KUBOTA SHIYOUJI , TAKAHASHI SANKICHI
IPC分类号： C02F1/78
摘要： PURPOSE:To enhance purification property of sewage, by a method wherein an ozone oxidtion tower is formed from a double structure consisting of an inner and an outer cylinders and a send-in port of water to be treated and an ozonized air diffusing part are provided to the lower part of the inner cylinder and a discharge port of treated water and an ozonized air diffusing part are provided to the lower part of the outer cylinder. CONSTITUTION:Water 8 to be treated sent into the inner cylinder 2 of an ozone oxidation tower from a send-in port 7 is concurrently contacted with ozonized air blown into the inner cylinder 2 from an air diffusing port 3 through an ozonized air send-in pipe 10. In this time, suspended solids in water to be treated are adhered to air bubbles of ozonized air to be raised upwardly and accumulated to the upper part of the ozone oxidation tower as scum 15 to be discharged from a discharge port as concentrated water comprising the scum 15. The ozone treated liquid is supplied as washing water from a discharge port 9 and ozonized air air after purification action is discharged from a gas discharge port 5 as waste gas 12.

72. 发明专利

JPS57149480A ELECTROCHEMICAL APPARATUS WITH INSOLUBLE ELECTRODE 失效
公开(公告)号：JPS57149480A
公开(公告)日：1982-09-16
申请号：JP3387581
申请日：1981-03-11
申请人： SHOWA DENKO KK , HITACHI LTD
发明人： KIMURA YOSHITAKA , SHIRAI KATSUYUKI , ASAHI NAOTATSU , KOJIMA YOSHITAKA , IIZUKA TOMIO , SAWA TOSHIO , TAKAHASHI SANKICHI
IPC分类号： C25B11/06 , C23C4/06 , C25B11/04 , C25B11/10
摘要： PURPOSE:To provide an apparatus equipped with an anode having a low oxygen voltage, by employing an anode that has been prepared such that a uniform film of titanium oxide and an oxide of non-noble metal elements is formed by spray coating on a conductive substrate. CONSTITUTION:The anode of the electrochemical apparatus comprises the conductive substrate and the uniform film of titanium oxide and one or more of oxides of non-noble metal elements that has been formed on the substrate by spray coating. The uniform mixture of the titanium oxide and non-noble metal elements is prepared, for instance, such that Nb metal or oxide, or Ni metal or oxide is added to molten titanium oxide, and the resulting mixture is solidified and crushed. This uniform mixture is spray coated by plasma metal spray on the conductive substrate to obtain the film. The thus obtained anode has a low oxygen voltage, when compared with the oxygen titanium spray coated film, and therefore consumption of electric power can be reduced.

73. 发明专利

JPS5724688A Electrolysis of dithionic acid-conting. waste liquid and apparatus therefor 失效
标题翻译：电解酸的电解。废液及其装置
公开(公告)号：JPS5724688A
公开(公告)日：1982-02-09
申请号：JP9987580
申请日：1980-07-23
申请人： Hitachi Ltd , Hitachi Plant Eng & Constr Co Ltd
发明人： SAWA TOSHIO , TAKAHASHI SANKICHI , OOTA TAKASHI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , C02F1/46 , C02F1/461
摘要： PURPOSE: To electrolyze a dithionic acid-contng. waste liquid discharged from a desulfurizer with high efficiency and to reduce COD components in the waste liquid, by passing the dithionic acid-contng. waste liquid through a space between electrodes packed with carbonaceous particles.
CONSTITUTION: A ferrite sheet anode 4 and a stainless steel sheet cathode 6 are positioned inside a square-shaped electrolytic cell 2. Carbon particles 8 are packed in a space between the two electrodes 4 and 6. A nylon net 10 is attached to the surface of the cathode 6 to separate it from the caton particles 8. D.C. voltage is applied bwtween the electrodes installed in this manner. A dithionic acid-contng. waste liquid from the desulfurizer of a boiler is passed through the space packed with the carbonaceous particles. With the passage of electrolysis time, S
2 0
6
2- is remarkably reduced, and nitrogeneous components are also decomposed by electrolytic chlorine and the odidation of itself. According to this method, since the carbon particles are packed in between the electrodes, a contact area is broadened, a reaction efficiency is enhanced, and a concentration to be disposed can be elevated.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：电解二硫酸 - 酸。通过脱硫酸反应，从脱硫剂中排出的废液能够高效率地还原废液中的COD成分。废液通过填充有碳质颗粒的电极之间的空间。构成：铁氧体片阳极4和不锈钢板阴极6位于方形电解池2的内部。碳颗粒8被填充在两个电极4和6之间的空间中。尼龙网10附接到表面的阴极6将其与阳离子颗粒8分离。以这种方式安装的电极施加直流电压。二硫酸连续来自锅炉的脱硫器的废液通过填充有碳质颗粒的空间。随着电解时间的延长，S206 <2->显着降低，并且硝酸成分也被电解氯分解并自身发生反应。根据该方法，由于碳粒子填充在电极之间，所以接触面积变宽，反应效率提高，能够提高浓度。

74. 发明专利

JPS561404A REGENERATING POROUS ELECTRIC CONDUCTIVE MATERIAL 失效
公开(公告)号：JPS561404A
公开(公告)日：1981-01-09
申请号：JP7690279
申请日：1979-06-20
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , TAKAHASHI SANKICHI , MIHARA YOSHIMITSU , IINUMA HAJIME , YAMAMOTO TADAKATSU , OGAWA KATSUO
IPC分类号： C02F1/46 , C02F1/461 , H01B1/04

75. 发明专利

JPS55127189A METHOD AND APPARATUS FOR PREPARATION OF INDUSTRIAL WATER FROM WASTE WATER 失效
公开(公告)号：JPS55127189A
公开(公告)日：1980-10-01
申请号：JP3459279
申请日：1979-03-22
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , KANEKO TOYOHIKO , TAKAHASHI SANKICHI
IPC分类号： C02F1/24 , C02F1/28 , C02F1/46 , C02F1/463 , C02F1/465 , C02F1/52
摘要： PURPOSE:To provide the titled treating method and apparatus for satisfying water quality standard in a high treating speed having at least two float separating procedure introducing fine air bubbles easily adhered to suspended substances within exhaust water added by a flocculating agent in an amount by volume ratio more than exhaust water. CONSTITUTION:The firstly treated exhaust water by sand precipitation is entered into an apparatus 20 from a storage tank 10 to be added by a flocculating agent and reached to a pressurized float separating apparatus 30. Fine gas bubbles with 50-150mum diameter generated by returning a pressurized water to atmospheric pressure in a vacuum apparatus 38 are introduced along with exhaust water to float suspended org. substances within exhaust water by flocking. The separated water is sent to a foaming bed type float separating apparatus 50 and treated by air bubbles with 1-5mm in an amount more than exhaust water in a volume ratio from an air distributing pipe 54 to float foaming substances within exhaust water as foams. This separated water can be utilized as toilet washing water after chlorine sterilization, but, moreover, subjected to filled electrolysis float separation treatment to obtain industrial water of which various substances of suspended org. foaming nitrogenous compounds as well as E. coli satisfy a water quality standard.

76. 发明专利

JPS55116479A INDUSTRIAL WATER PLANT FOR WASTE WATER 失效
公开(公告)号：JPS55116479A
公开(公告)日：1980-09-08
申请号：JP2445179
申请日：1979-03-05
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA MASAYOSHI , KANEKO TOYOHIKO , TAKAHASHI SANKICHI
IPC分类号： C02F1/24 , C02F1/46 , C02F1/463 , C02F1/465 , C02F9/00
摘要： PURPOSE:To obtain the industrial water suitable for the water standard rapidly and efficiently by a method wherein the dimensions of the treatment tanks of each stage, that is a floating separating device by means of pressurization, bubbling, filling and electrolysis, are set within specified ranges consisting a industrial water plant. CONSTITUTION:When treating waste water, the percentage of treating capacties of a pressurizing floating separating device is set to approximate 50%, a bubbling floating separating device to approximate 10-15% and a filling and electrolysis floating separating device to approximate 35-45% in the dimensions of each treating tank of the plant when the quantity of waste water treated per unit time is set to 100%. Consequently, suspended solids and organic matters in waste water are removed by minute bubbles in size approximate 50-150mu by means of pressurizing separation, suspended solids, organic matters and foaming matters by bubbles in size approximate 1-5mm by means of the next bubbling separation and residual suspended solids and organic matters further by bubbles in size approximate 100- 200mum by means of filling and electrolysis separation. Thus, industrial water conforming to the water standard can be prepared by efficient combination.

77. 发明专利

JPS5556888A TREATMENT APPARATUS FOR NIGHT SOIL WASTE WATER 失效
公开(公告)号：JPS5556888A
公开(公告)日：1980-04-26
申请号：JP12848878
申请日：1978-10-20
申请人： HITACHI LTD
发明人： SAWA TOSHIO , KUBOTA SHIYOUJI , ADACHI TETSUROU , MATSUMOTO TAKAYUKI , TAKAHASHI SANKICHI
IPC分类号： C02F1/78
摘要： PURPOSE:To permit the effective treatment of difficultly decomposable night soil waste water by performing the fluidization, adsorption, and regeneration of active carbon by introducing the waste ozone gas of ozone absorption tank into an active carbon fluidized bed. CONSTITUTION:An ozone-containing gas from the ozonizer 8 is supplied into the ozone absorption tank 1 to oxidize and decompose organic COD components present in night soil waste water supplied in the tank 1, and the treated waste water is directed to the active carbon fluidized tank 2 through the opening 5 of the partition wall 4. The decomposed organics present in waste water are adsorbed in the active carbon 3 in the tank 2 which is fluidized by waste ozone supplied through the conduit 14 from the ozone absorption tank 1, and at the same time the adsorbate on the surface of the active carbon 3 is decomposed by an ozone-lean gas and the gas is consumed. The treatemnt apparatus is applicable to the treatemtn of night soil waste water difficultly decomposable because of its high molecular weight, discharged from the final treatment process of the night soil treatment plant.

78. 发明专利

JPS5430653A WATER PURIFICATION METHOD AND APPARATUS FOR SAME 失效
公开(公告)号：JPS5430653A
公开(公告)日：1979-03-07
申请号：JP9612677
申请日：1977-08-12
申请人： HITACHI LTD
发明人： SAWA TOSHIO , IZUMI KENKICHI , SHIMOKAWABE IKUO , TAKAHASHI SANKICHI , YAMADA AKIRA , ADACHI TETSUROU
IPC分类号： C02F1/461 , C02F1/46 , C02F1/64
摘要： PURPOSE:To facilitate the separating away of manganese, iron and so onin water with a sand filtration tank or the like after solidification thereof through electrolysis with cholride added.

79. 发明专利

JPS5392370A TREATING METHOD AND APPARATUS FOR EXHAUST LIQUID OR SOLUTION 失效
公开(公告)号：JPS5392370A
公开(公告)日：1978-08-14
申请号：JP11935377
申请日：1977-10-03
申请人： HITACHI LTD , HITACHI PLANT ENG & CONSTR CO
发明人： EBARA KATSUYA , TAKAHASHI SANKICHI , OGAWA TOSHIO , SAWA TOSHIO , NISHIMURA SHIGEOKI , YOSHIKAWA SEIICHI , KOMORI SHINJI
IPC分类号： C02F1/44 , C02F5/00 , C02F5/08
摘要： PURPOSE:To prevent effectively deposition, adhesion of scale on membrane by reacting Ca, F, or heavy metals contained in exhaust soln. to form a slightly sol. complex, which is separated, and by reacting Ca, F, heavy metals remaining in the exhaust soln. to form a sol. complex, then by introducing the soln. into a membrane separator.

80. 发明专利

JPS5314674A TREATING EMTHOD FOR WASTE WATER FROM WET DESULFURIZATION EQUIPMENT FOR EXHAUST GAS 失效
公开(公告)号：JPS5314674A
公开(公告)日：1978-02-09
申请号：JP8917376
申请日：1976-07-28
申请人： HITACHI LTD , HITACHI PLANT ENG & CONSTR CO
发明人： SHIMOKOUBE IKUO , OOTANI KOUJI , NISHIMURA SHIGEOKI , SAWA TOSHIO , YOSHIKAWA SEIICHI , YAMAZAKI TADASHI
IPC分类号： B01D53/50 , B01D53/77 , C02F1/42
摘要： PURPOSE:To make harmless the blow-down water containing COD components consisting of dithionic acid, etc., by adsorbing and removing the above COD components at the weakly basic ion exchange resin tower after having oxidized electrolytically using graphite as the anode.

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