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1. 发明专利

JP2005329281A Boron-containing water treatment method 有权
标题翻译：含硼含水处理方法
公开(公告)号：JP2005329281A
公开(公告)日：2005-12-02
申请号：JP2004147626
申请日：2004-05-18
申请人： Kurita Water Ind Ltd , 栗田工業株式会社
发明人： ASADA HIROYUKI , TAKABAYASHI YASUHIKO
IPC分类号： C02F1/52 , C02F1/28
摘要： PROBLEM TO BE SOLVED: To provide a boron-containing water treatment method by which boron in boron-containing water containing phosphorous and/or silica is removed by being adsorbed in a granulated body on which hydrated oxide of rare earth element is deposited, in a stable and efficient manner by preventing reduction in the boron adsorbing properties of the granulated body.
SOLUTION: The boron-containing water treatment method is characterized in that when the boron-containing water containing phosphorous and/or silica is brought into contact with the granulated body on which the hydrated oxide of rare earth element is deposited and the boron is removed by being adsorbed in the granulated body, phosphorous and/or silica in the boron-containing water is removed beforehand, and the water is then brought into contact with the granulated body. By removing phosphorous and/or silica beforehand, the reduction in the boron adsorbing properties of the granulated body caused by phosphorous and/or silica can be securely prevented.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种含硼水处理方法，其中通过吸附含有磷和/或二氧化硅的含硼水中的硼被吸附在稀土元素的水合氧化物沉积的粒状体中而被除去通过防止粒状体的硼吸附性能的降低而稳定而有效地进行。解决方案：含硼水处理方法的特征在于，当含有磷和/或二氧化硅的含硼水与沉积稀土元素的水合氧化物的颗粒体接触时，硼通过吸附在造粒体中除去，预先除去含硼水中的磷和/或二氧化硅，然后与造粒体接触。通过事先去除磷和/或二氧化硅，可以可靠地防止由磷和/或二氧化硅引起的造粒体的硼吸附性能的降低。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005334701A Boron-containing water treatment method 审中-公开
标题翻译：含硼含水处理方法
公开(公告)号：JP2005334701A
公开(公告)日：2005-12-08
申请号：JP2004153416
申请日：2004-05-24
申请人： Kurita Water Ind Ltd , 栗田工業株式会社
发明人： ASADA HIROYUKI , TAKABAYASHI YASUHIKO
IPC分类号： C02F1/28 , B01D9/02 , B01J20/06 , B01J20/34 , C01B35/12 , C02F1/04
摘要： PROBLEM TO BE SOLVED: To provide a boron-containing water treatment method for recovering boron by evaporation and concentration of recycled drainage obtained by adsorbing and removing boron in boron-containing water and desorbing the boron, which can recover boron economically by fractionating and collecting high boron concentration recycled drainage, and reducing the evaporation and concentration volume of the drainage.
SOLUTION: In the boron-containing water treatment method for recovering boron by evaporating and concentrating the recycled drainage which is obtained by adsorbing and removing the boron in the boron-containing water by using a granular material where a hydrous oxide of a rare earth element is carried by a porous carrier, and desorbing the boron from the granulated material by an alkali aqueous solution, the concentration of the boron in the recycled drainage is decided from the electric conductivity or pH of the recycled drainage to fractionate and collect the high boron concentration recycled drainage.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过蒸发回收硼并且通过在含硼水中吸附和除去硼并且解吸硼而获得的再循环排出物的硼含水处理方法，其可通过分馏经济地回收硼并收集高硼浓度的回收排水，并减少排水的蒸发浓缩体积。解决方案：在含硼水处理方法中，通过蒸发和浓缩通过使用稀土类水合氧化物的颗粒材料吸附和除去含硼水中的硼而获得的再循环排水来回收硼土壤元素由多孔载体承载，并通过碱水溶液从造粒材料中解吸硼，再循环排水中硼的浓度由循环排水的电导率或pH决定，分馏并收集高硼浓度回收排水。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH09117782A TREATMENT OF AMMONIA-CONTAINING WASTE WATER 失效
公开(公告)号：JPH09117782A
公开(公告)日：1997-05-06
申请号：JP29927295
申请日：1995-10-23
申请人： KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： YUASA YOSHIRO , IZUMITANI SUSUMU , KAGAWA KOJI , ASADA TOMOYUKI , NAKAHARA TOSHIJI , TAKABAYASHI YASUHIKO , JOKO ISAO
IPC分类号： C02F1/58 , B01J23/42 , C02F1/72 , C02F1/74
摘要： PROBLEM TO BE SOLVED: To decrease the total nitrogen concn. by blowing a specified gaseous oxygen into an ammonia-contg. waste water under specified pressurized conditions, bringing the water into contact with a noble metal carrying catalyst under specified heated conditions, then adding hydrogen peroxide and bringing the water into contact with a noble metal carrying catalyst under specified heated conditions. SOLUTION: The ammonia-contg. waste water is sent by a pump 2 from a raw water tank 1 under pressure, and gaseous oxygen having >=90% purity is blown from an oxygen generator 3 into the water at 3-10kg/cm (gage pressure). The water is heated by the remaining heat in a heat exchanger 4, further heated to 140-180 deg.C by a heater 5 and sent to a catalytic reaction tank 6, and the ammonia is removed by the cracking reaction between ammonia and oxygen catalyzed by a noble metal carrying catalyst. Hydrogen peroxide in an amt. more than the equivalent to residual ammonia is added to the treated water leaving the reaction tank 6, and the water is sent to a catalytic reaction tank 7 and brought into contact with a noble metal carrying catalyst at 140-180 deg.C.

4. 发明专利

JPH081172A TREATMENT OF AMMONIA NITROGEN-CONTAINING WATER 失效
公开(公告)号：JPH081172A
公开(公告)日：1996-01-09
申请号：JP15800194
申请日：1994-06-16
申请人： KURITA WATER IND LTD
发明人： TAKANO MAOMI , NAKAHARA TOSHIJI , TAKABAYASHI YASUHIKO
IPC分类号： C02F1/58 , C02F1/62 , C02F1/72
摘要： PURPOSE:To prevent the lowering of catalytic capacity by adding a nitrite to ammonia nitrogen-containing water to execute catalytic oxidative decomposition in the presence of a noble metal-supported catalyst and preliminarily removing a heavy metal ion in ammonia nitrogen-containing water when ammonia nitrogen is treated to be converted to nitrogen gas. CONSTITUTION:The ammonia nitrogen-containing water guided to a raw water tank 1 is adjusted in its pH to be sent to a chelate resin-packed tower 3 by a pump 2. The treated water from which a heavy metal ion is removed in the chelate resin-packed tower 3 is sent to a conditioning tank 4 to receive the addition of nitrite. Thereafter, the ammonia nitrogen-containing water is sent to a catalyst packed tower 8 packed with a noble metal supported catalyst by a pump 5 while preheated if necessary by a heat exchanger 6 and a heater 7. The treated water wherein ammonia is decomposed and removed in the catalyst-packed tower 8 is sent to a next process through the heat exchanger 6 and a pressure control valve 9. By this constitution, the lowering of catalytic capacity caused by the precipitation of heavy metals on the surface of the catalyst is prevented.

5. 发明专利

JPH07265876A TREATMENT OF WASTE WATER 失效
公开(公告)号：JPH07265876A
公开(公告)日：1995-10-17
申请号：JP8596294
申请日：1994-03-31
申请人： KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： YUASA YOSHIRO , IZUMITANI SUSUMU , NAKAHARA TOSHIJI , TAKABAYASHI YASUHIKO
IPC分类号： C02F1/58 , C02F1/62 , C02F1/72
摘要： PURPOSE:To economically treat a waste water contg. metal and ammonia by specifying the pH of raw water, separating the formed metal hydroxide, then adding a nitrite and passing the water under heating through a tower packed with a metal-carrying catalyst. CONSTITUTION:The regenerated waste water from the condensate desalting device in a power plant is used as the raw water, and ammonia is removed from the water. In this case, an aq. sodium hydroxide soln. is added in a raw water tank 1 to regulate the raw water to pH8-12. The raw water is then sent to a downflow filter 3 by a pump 2 to filter off the iron hydroxide and copper hydroxide formed in the raw water, and the filtered water is accumulated in a pH regulating tank 4. Sulfuric acid is added to the waste water to adjust the water to pH6.5, sodium nitrite in the amt. equivalent to ammonia is admixed, then the waste water is passed through a heat exchanger 6 by a pump 5, heated to about 160 deg.C by a heater 7 and sent to a tower 8 packed with a metal-carrying catalyst to decompose and remove the ammonia in the waste water.

6. 发明专利

JPH10128347A METHOD FOR TREATING WATER CONTAINING NITRITE NITROGEN 失效
公开(公告)号：JPH10128347A
公开(公告)日：1998-05-19
申请号：JP30878396
申请日：1996-11-05
申请人： KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： SOGAWA TETSUYA , KAGAWA KOJI , ASADA TOMOYUKI , IZUMITANI SUSUMU , TAKABAYASHI YASUHIKO , NAKAHARA TOSHIJI
IPC分类号： C02F1/58 , B01J23/42 , C02F1/42 , C02F1/62 , C02F1/70 , C02F1/72
摘要： PROBLEM TO BE SOLVED: To remove nitrate nitrogen surely by conducting a catalytic reaction with zinc while regulating oxidation-reduction potential at a prescribed value when drainage containing nitrate nitrogen is contacted with zinc to reduce the nitrogen into nitrite nitrogen, etc., which is decomposed into nitrogen gas in the presence of a catalyst. SOLUTION: A pH regulating agent measured by a pH meter 2 is added into water containing nitrate nitrogen in a pH regulating tank 1, and the pH of water is adjusted to 3-6. Next, the treated water is sent to reduction tank 4, and zinc power slurry is added to reduce the nitrogen into nitrite nitrogen, etc. The tank 4 is equipped with an oxidation-reduction potentiometer 5 which actuates a slurry pump 6 and regulated the injection of the zinc slurry and a pH meter 7 which operates an pump 8 and regulates the addition of the pH regulating agent. After that, the treated water, after being sent of an aggregation reactor 9 to be aggregated, is separated into solid and liquid in a precipitation tank 10. The supernatant in the tank 10 is set to an ion exchange resin column 11, and the minute amount of residual metal is removed.

7. 发明专利

JPH07265877A TREATMENT OF AMMONIA-CONTAINING WASTE WATER 失效
公开(公告)号：JPH07265877A
公开(公告)日：1995-10-17
申请号：JP8596394
申请日：1994-03-31
申请人： KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： YUASA YOSHIRO , IZUMITANI SUSUMU , SAKAMOTO SHUICHI , TAKABAYASHI YASUHIKO , NAKAHARA TOSHIJI
IPC分类号： C02F1/58 , C02F1/72
摘要： PURPOSE:To enhance the efficiency in the catalytic decomposition of waste water by adding a nitrite to the ammonia-contg. waste water, bringing the waste water into contact with a metal-carrying catalyst under heating, separating and removing the generated gaseous nitrogen and then bringing the waste water into contact with a metal-carrying catalyst. CONSTITUTION:Plural fixed-bed catalystic reactors 5, 7 and 9 to treat ammonia- contg. waste water are arranged in series, nitrous acid or a nitrite is added to the waste water introduced into a raw water tank 1, and then sulfuric acid or sodium hydroxide is admixed and agitated to regulate the waste water to about pH6-7. The regulated waste water is delivered by a pump 2, preheated by a heat exchanger 3, then heated to about 130-180 deg.C by a heater 4 and introduced into a first reactor 5. The gaseous nitrogen generated by the catalytic decomposition of ammonia with a metal-carrying catalyst is extracted from a valve 6, and then treated water is sent to a second reactor 7. The generated gaseous nitrogen is extracted from a valve 8, the treated water is sent to a third reactor 9 and treated in the same way to obtain the desired treated water quality.

8. 发明专利

JPH0699180A METHOD FOR TREATING WATER CONTAINING AMMONIA 失效
公开(公告)号：JPH0699180A
公开(公告)日：1994-04-12
申请号：JP25295792
申请日：1992-09-22
申请人： KURITA WATER IND LTD
发明人： TAKABAYASHI YASUHIKO
IPC分类号： B01J23/42 , C02F1/58 , C02F1/72
摘要： PURPOSE:To obtain a method for treating water containing ammonia which prevents a catalyst from deteriorating in its performance due to the stripping of a catalytic metal supported on a carrier from the carrier and can decompose ammonia with the high activity of the catalytic metal for a long time. CONSTITUTION:A metal-carrying catalyst consisting of at least one type of material selected from the group consisting of alfa-alumina, titanium and activated carbon as catalysts is used in a method for decomposing ammonia by heating water containing ammonia in the presence of nitrite ion and a catalyst.

9. 发明专利

JPH09253497A METHOD OF REGENERATING CATALYST FOR TREATING AMMONIA-CONTAINING WASTE WATER 失效
公开(公告)号：JPH09253497A
公开(公告)日：1997-09-30
申请号：JP9032796
申请日：1996-03-19
申请人： KURITA WATER IND LTD
发明人： YAMADA RYOICHI , TAKABAYASHI YASUHIKO , NAKAHARA TOSHIJI
IPC分类号： C02F1/58 , B01J23/42 , B01J23/96 , B01J38/02 , B01J38/48 , C02F1/72
摘要： PROBLEM TO BE SOLVED: To simply remove catalyst poisons from a metal catalyst which has been poisoned by metals such as copper, and regenerate the catalyst by bringing the catalyst suffering from deterioration of activity into contact with an ammonia-containing waste water to which an oxidizing agent has not been added. SOLUTION: Ammonia-containing waste water received in a crude water tank 1 is transferred to an adjustment tank 3 by means of a pump 2, and a pH controlling agent is added as necessary, and a sodium nitrile aqueous solution is injected from an oxidizing agent tank 5 in the above process and then temperature is adjusted before ammonia nitrogen is decomposed in a catalyst packed tower 9. When activity of the metal catalyst in the catalyst packed tower 9 is deteriorated, a pump 6 is stopped and injection of the oxidizing agent is stopped, and a valve 11 is closed, and a valve 12 is opened, and the ammonia containing waste water, into which the oxidizing agent has not been added, is introduced into the catalyst packed tower 9. The metal catalyst is regenerated and copper contained in the ammonia containing waste water used for regeneration of the metal catalyst is simultaneously removed before the waste water is returned to the crude water tank 1. As described above, the metal catalyst is regenerated in the process of treating the ammonia containing waste water in a short period of time and treatment can be restarted.

10. 发明专利

JPH08192191A METHOD FOR TREATING UNSTEADY-STATE DRAINAGE OF THERMAL POWER STATION 失效
公开(公告)号：JPH08192191A
公开(公告)日：1996-07-30
申请号：JP1984195
申请日：1995-01-12
申请人： KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： YUASA YOSHIRO , IZUMITANI SUSUMU , ASADA TOMOYUKI , KIMOTO HIROSHI , NAKAHARA TOSHIJI , KITAMI HIROKO , TAKABAYASHI YASUHIKO
IPC分类号： C02F9/00 , B01J23/42 , C02F1/52 , C02F1/72
摘要： PURPOSE: To easily treat unsteady-state drainage of a thermal power station without causing a lowering of performance of catalyst or without producing clogging of pipes of a treating device by a method wherein unsteady-state drainage of the thermal power station is subjected to an aggregation and solid-liquid separation process, and then ammoniacal nitrogen is oxidized and decomposed in the presence of catalyst. CONSTITUTION: Unsteady-state drain of a thermal power station stored in a storage tank 1 is led to a reaction tank 2, where alkali is added to the drain while it is being agitated, to make pH, for example, 10 or more. The treated water, in which metal hydroxide has been deposited and suspended matters have been precipitated, is sent to a coagulating sedimentation tank 3, where flocculant is added thereto and the water is slowly agitated and settled to precipitate the aggregates. Supernatant liquid is sent to a filter 5 by a pump 4 and the filtered liquid is sent to an adjusting tank 6 to adjust pH, for example, to 6-8 and oxidizing agent is added thereto. The resultant treated water is sent to a catalyst packed tower 10 via a heat exchanger 8 and a heater 9 to oxidize ammonium ion.

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