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1. 发明公开

EP2036866A4 METHOD AND APPARATUS FOR TREATING SELENIUM-CONTAINING WASTEWATER 有权
标题翻译：方法和一种用于治疗污水SELENHALTIGEM的
公开(公告)号：EP2036866A4
公开(公告)日：2012-06-20
申请号：EP07767781
申请日：2007-06-28
申请人： KURITA WATER IND LTD
发明人： ETOU YOSHIHIRO , ASADA HIROYUKI , TANAKA YU
IPC分类号： C02F1/70 , C02F1/52 , C02F1/66
CPC分类号： C02F1/705 , C02F1/5236 , C02F1/56 , C02F1/66 , C02F9/00 , C02F11/14 , C02F2101/106 , C02F2101/108 , C02F2101/14 , C02F2103/16 , C02F2103/18 , C02F2209/02 , C02F2209/40 , Y10S210/911
摘要： A method and an apparatus for treating selenium-containing wastewater, in which wastewater containing hexavalent selenium is subjected to reduction treatment, selenium can be effectively removed at a small amount of metal leached, and, preferably, sludge produced during treatment is white, thereby facilitating the disposal of the sludge. The selenium-containing wastewater is brought into contact with an alloy or a mixture of metallic titanium and a first metal other than metallic titanium to partially leach the first metal, thereby subjecting selenium in the wastewater to reduction treatment.

2. 发明专利

JP2015039652A セレン含有水の処理方法及び処理装置有权
标题翻译：用于处理含硒水的方法和装置
公开(公告)号：JP2015039652A
公开(公告)日：2015-03-02
申请号：JP2013170455
申请日：2013-08-20
申请人：栗田工業株式会社 , Kurita Water Ind Ltd
发明人： ASADA HIROYUKI , MURAMATSU YUICHI , TANITSU YOSHIKAZU
IPC分类号： C02F1/70 , B01D53/14 , C02F1/58 , C02F1/78
摘要：【課題】セレン含有水を金属チタンとそれよりも卑な金属との混合物又は合金と接触させ、該卑な金属の一部を溶出させることによりセレンを還元するセレン含有排水の処理方法及び装置において、セレン含有水が亜硫酸イオン、チオ硫酸イオン、亜硝酸イオンなどを含んでいてもセレンを効率よく処理することができるようにする。【解決手段】セレン含有水を、金属チタンとチタンより卑な金属との混合物の充填層7Aと接触させて、前記卑な金属の単体の一部を溶出させることにより、該セレン含有水中のセレンを還元処理するセレン含有水の処理方法及び装置において、該還元処理に先立ち、前記セレン含有水をオゾン酸化槽1で酸化処理する。【選択図】図1
摘要翻译：要解决的问题：提供一种处理含硒水的方法和设备，其中每个含硒水与含有金属钛和金属碱的混合物或合金与钛接触以洗脱贱金属的一部分并且还原硒，并且其中的每一个构成为使得即使含硒的水含有亚硫酸根离子，硫代硫酸根离子，亚硝酸根离子等也能够有效地处理含硒水。解决方案：在含硒水处理方法和装置中，含硒水与钛金属混合物的混合物与钛的混合物的填充层7A与钛接触，以洗脱一部分在含硒水中还原硒，并且含硒水在臭氧氧化槽1中被氧化，在含硒水被还原之前。

3. 发明专利

JP2000176438A EXTRACTION METHOD 失效
公开(公告)号：JP2000176438A
公开(公告)日：2000-06-27
申请号：JP36108898
申请日：1998-12-18
申请人： ELECTRIC POWER DEV CO , KANSAI ELECTRIC POWER CO , KURITA WATER IND LTD
发明人： NOGUCHI YOSHIKAZU , MUTO KENICHI , TOYAMA KOJI , YAMASHITA NAOYUKI , ASADA HIROYUKI , ETO YOSHIHIRO
IPC分类号： C02F1/26 , B01D11/04
摘要： PROBLEM TO BE SOLVED: To stably and effectively perform a series of treatments from extraction to crystallizing recovery in by response to a variation in object concentration in water to be treated by adjusting a pH value of stripping agent before stripping based on a pH value after stripping. SOLUTION: A pipeline for feeding stripping agent in which boron has been back extracted in a stripping 3 to a crystallizer 4 is provided with a pH meter 4A to measure pH. And pH of the stripping agent before backward extraction is determined so that pH of stripping agent after backward extraction becomes a predetermined pH value. Based on this result, the operation of a chemical injection pump P2 is controlled. When pH of the stripping agent after stripping for adjusting the added quantity of alkali to a pH adjusting tank 2 is lower than a predetermined pH value, the fed quantity of alkali to the pH adjusting tank 2 is increased so that pH of the stripping agent is raised, and on the contrary, when pH of the stripping agent after backward extraction is higher than the predetermined pH value, the fed quantity of alkali to the pH adjusting tank 2 is reduced so that pH of the stripping agent is lowered. In this way, by increasing or decreasing the fed quantity of alkali, pH of the stripping agent before stripping is adjusted.

4. 发明专利

JP2000167571A TREATMENT OF SELENIUM-CONTAINING WATER 失效
公开(公告)号：JP2000167571A
公开(公告)日：2000-06-20
申请号：JP34429898
申请日：1998-12-03
申请人： KURITA WATER IND LTD
发明人： ETO YOSHIHIRO , ASADA HIROYUKI , MURAKAMI TAKAFUMI
IPC分类号： C02F1/58 , C02F1/70
摘要： PROBLEM TO BE SOLVED: To reduce the addition amt. of a chemical agent and the generation amt. of sludge and to recover water to reutilize the same by evaporating selenium-containing water to concentrate the same and treating conc. water at specific temp. or higher by the contact with metal iron or the addition of an iron (II) salt. SOLUTION: When selenium-containing water such as exhaust gas desulfurization waste water of a lime steam power plant or waste water of petroleum refining factory is treated, selenium-containing water is evaporated to be conc. and conc. water is treated at 60 deg.C or higher by the contact with metal iron or the addition of an iron (II) salt. At this time, pref., the conc.. water is adjusted to pH 3-6 to be brought into contact with metal iron. As metal iron to be used, there is no special limit and, for example, pure iron, alloyed steel, other iron alloy or the like can be designated but metal iron having a large surface area such as fine iron particles, an iron wire or granular iron is pref. Further, there is no special limit with respect to an iron (II) salt, for example, ferrous chloride, ferrous bromide or ferrous iodide can be designated.

5. 发明专利

JPH11319850A TREATMENT OF BORON-CONTAINING WATER 失效
公开(公告)号：JPH11319850A
公开(公告)日：1999-11-24
申请号：JP12925498
申请日：1998-05-12
申请人： NIPPON LIGHT METAL CO , JAPAN CAPACITOR IND CO LTD , KURITA WATER IND LTD
发明人： MORITA AKIRA , ASAHARA SHOJI , NISHIYAMA FUDE , SHINBA KOZO , ETO YOSHIHIRO , ASADA HIROYUKI
IPC分类号： C02F1/58
摘要： PROBLEM TO BE SOLVED: To provide a process for treating boron-containing water which reduces the consumption of ion exchange resins and chemical agents, efficiently removing boron at a high removal ratio from a high boron concentration water as well as a low boron concentration water containing boron utilizing a small- sized apparatus obtaining a high quality treated water and reducing the amount of sludge output. SOLUTION: This process for treating boron-containing water consists of following steps; treating high concentration boron-containing water 6 and low concentration boron-containing water 13 separately, the high concentration boron-containing water 6 is treated in a first processing tank 1 for adjusting its pH and then evaporation-concentrated in an evaporation concentration apparatus 2 thereby obtaining condensate water 11 and concentrate liquid 12, the condensate water 11 and the low concentration boron-containing water 13 are mixed with each other in a second processing tank 3 and the mixed water obtained is subjected to either an ion-exchange in ion-exchange tank 4 or an flocculation treatment for removing boron thereby obtaining the treated water 17.

6. 发明专利

JPH10314797A METHOD FOR TREATING WATER CONTAINING FLUORIDE ION AND COD COMPONENT 失效
公开(公告)号：JPH10314797A
公开(公告)日：1998-12-02
申请号：JP12705297
申请日：1997-05-16
申请人： KURITA WATER IND LTD , KANSAI ELECTRIC POWER CO
发明人： YAMASHITA NAOYUKI , OKA ATSUO , TOYAMA KOJI , YAMADA RYOICHI , ETO YOSHIHIRO , ASADA HIROYUKI
IPC分类号： C02F1/42 , C02F1/04 , C02F1/52 , C02F1/58 , C02F9/00
摘要： PROBLEM TO BE SOLVED: To provide a method for treating water containing fluoride ions and COD components wherein water can be recovered so as to be utilized and fluoride ions and COD components can be removed efficiently at a high rate using a small amount of chemicals. SOLUTION: In a preliminary reaction tank 1, Ca salts and/or Al salts 7 are added to water 6 containing fluoride ions and COD components to adjust pH to 5-8 to effect sedimentation and solid-liquid separation is effected at a solid-liquid separation tank 2 to discharge sludge 11 and flowing out liquid 12 is evaporated at an evaporating device 3 to recover water 13 and concentrated liquid 14 is introduced into a coagulating reaction tank 4, where polyvalent metal salts 15 are added to the liquid 14 to adjust pH so that solids are produced and solid-liquid separation is effected in a solid-liquid separation tank 5 and sludge 20 is returned to the tank 1, while separated liquid is subjected to an ion-exchange treatment at an ion-exchange tank 22 filled with weak-base anion-exchange resins 23.

7. 发明专利

JP2009011914A Selenium-containing wastewater treatment method and apparatus 有权
标题翻译：含铀废水处理方法和装置
公开(公告)号：JP2009011914A
公开(公告)日：2009-01-22
申请号：JP2007175381
申请日：2007-07-03
申请人： Electric Power Dev Co Ltd , Kurita Water Ind Ltd , 栗田工業株式会社 , 電源開発株式会社
发明人： ETO YOSHIHIRO , ASADA HIROYUKI , TANAKA TAMOTSU
IPC分类号： C02F1/70 , C02F1/52 , C02F1/58
摘要： PROBLEM TO BE SOLVED: To provide a selenium-containing wastewater treatment method and apparatus which can perform reduction treatment of hexavalent selenium-containing wastewater to effectively remove selenium with a small elution amount of metal, and preferably, generate easily disposable sludge whose color is white.
SOLUTION: In the selenium-containing wastewater treatment method whereby selenium-containing wastewater is brought into contact with a mixture of metallic titanium and other metals and keeps a part of the other metals eluted to reduce selenium, the particle size of the metallic titanium is 4 mm or less, and that of the other metals is 1 mm or more.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：提供一种含硒废水处理方法和装置，其可以进行含六价硒的废水的还原处理以有效地除去少量金属的硒，并且优选产生容易的一次性污泥颜色是白色解决方案：在含硒废水处理方法中，使含硒废水与金属钛和其他金属的混合物接触，并使其余金属的一部分被洗脱以减少硒，金属的颗粒尺寸钛为4mm以下，其他金属为1mm以上。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008073639A Boron recovery apparatus 审中-公开
标题翻译： BORON恢复装置
公开(公告)号：JP2008073639A
公开(公告)日：2008-04-03
申请号：JP2006257470
申请日：2006-09-22
申请人： Kurita Water Ind Ltd , 栗田工業株式会社
发明人： ASADA HIROYUKI
IPC分类号： C02F1/28 , B01D9/02 , C01B35/12 , C02F1/04
摘要： PROBLEM TO BE SOLVED: To provide a boron recovery method by which boron can be recovered as borax or orthoboric acid having a high utility value from boron-containing water.
SOLUTION: The boron recovery apparatus is provided with: an adsorption tower 1 for adsorbing boron in boron-containing water; a regenerant storage tank 2 for storing alkali for desorbing boron; an evaporator 3 for evaporating and concentrating a desorbing liquid; a cooling tank 4 for precipitating the crystals of metaborate from an evaporated and concentrated liquid; a filter 5 for separating the crystals; a dissolution tank 6 for dissolving the crystals into water; a neutralization tank 7 for neutralizing the dissolved liquid with acid and precipitating the crystals of tetraborate; a filter 8 for separating the crystals of tetraborate and a supernatant liquor; and a returning passage 9 for returning the supernatant liquor into the adsorption tower.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种硼回收方法，通过硼回收方法可以从含硼水中回收硼酸或具有高效用价值的原硼酸。解决方案：硼回收装置设有：用于在含硼水中吸附硼的吸附塔1; 用于储存用于解吸硼的碱的再生剂储存罐2; 用于蒸发和浓缩解吸液体的蒸发器3; 用于从蒸发和浓缩的液体中沉淀偏硼酸晶体的冷却槽4; 用于分离晶体的过滤器5; 用于将晶体溶解在水中的溶解槽6; 中和罐7，用于用酸中和溶解的液体并沉淀四硼酸盐的晶体; 用于分离四硼酸盐晶体和上清液的过滤器8; 以及用于将上清液返回到吸附塔中的返回通道9。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2004057870A Treating method of boron-containing water 有权
公开(公告)号：JP2004057870A
公开(公告)日：2004-02-26
申请号：JP2002216478
申请日：2002-07-25
申请人： Asahi Eng Co Ltd , Kurita Water Ind Ltd , Tohoku Electric Power Co Inc , 旭エンジニアリング株式会社 , 東北電力株式会社 , 栗田工業株式会社
发明人： YAMAURA TSUGUAKI , SHINDO MANABU , IKOMA KAZUHIRO , KONNO SEIICHI , ASADA HIROYUKI , ETO YOSHIHIRO , SATO TAKESHI
IPC分类号： C02F1/28 , B01J20/06 , B01J20/34
摘要： PROBLEM TO BE SOLVED: To provide a treating method of boron-containing water by which stable treatment can be continued without lowering boron adsorbing ability of a granulated body in the treating method of the boron-containing water by which boron is removed by adsorption using the granulated body on which hydroxide of rare earth element is deposited. SOLUTION: In the treating method of the boron-containing water having an adsorbing process in which the boron-containing water is brought into contact with the granulated body on which hydroxide of rare earth element is deposited to remove boron by adsorption and a desorbing process in which a boron-adsorbed granulated body is brought into contact with an alkaline aqueous solution to desorb boron, an acid-treatment process in which the granulated body is brought into contact with an acid aqueous solution before or after bringing the granulated body into contact with the alkaline aqueous solution, is provided. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003080269A Method for treating boron-containing water 审中-公开
标题翻译：用于处理含硼水的方法
公开(公告)号：JP2003080269A
公开(公告)日：2003-03-18
申请号：JP2001271428
申请日：2001-09-07
申请人： Kurita Water Ind Ltd , Tohoku Electric Power Co Inc , 東北電力株式会社 , 栗田工業株式会社
发明人： HAYASAKA TAKAO , YAMAURA TSUGUAKI , SATO TAKESHI , ETO YOSHIHIRO , ASADA HIROYUKI
IPC分类号： C02F1/52 , C02F1/42 , C02F1/58
摘要： PROBLEM TO BE SOLVED: To provide a method for treating boron-containing water by which the amount of chemicals used and the regeneration frequency of an ion exchange resin are reduced and boron can be efficiently removed by flocculation precipitation and/or ion exchange.
SOLUTION: (1) In the method for treating boron-containing water by flocculation precipitation, the concentration of boron in the boron-containing water is automatically analyzed and the amount of a flocculant added is automatically controlled. (2) When the boron-containing water is treated by an ion exchange method, the concentration of boron is automatically analyzed and time appropriate to the regeneration of an ion exchange resin is automatically controlled. (3) When the boron-containing water is treated by the ion exchange method after treatment by flocculation precipitation, the concentration of boron is automatically analyzed and the amount of a flocculant added is automatically controlled.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种处理含硼水的方法，通过该方法可以减少使用的化学品的使用量和离子交换树脂的再生频率，并且可以通过絮凝沉淀和/或离子交换有效地除去硼。解决方案：（1）在通过絮凝沉淀处理含硼水的方法中，自动分析含硼水中硼的浓度，并自动控制添加的絮凝剂的量。（2）当通过离子交换法处理含硼水时，自动分析硼的浓度，自动控制适合离子交换树脂再生的时间。（3）当通过絮凝沉淀处理后，通过离子交换法处理含硼水时，自动分析硼的浓度，并自动控制添加的絮凝剂的量。

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