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1. 发明专利

JP2005103486A Method and apparatus for biologically treating organic waste liquid 审中-公开
标题翻译：生物处理有机废液的方法和装置
公开(公告)号：JP2005103486A
公开(公告)日：2005-04-21
申请号：JP2003343159
申请日：2003-10-01
申请人： Ebara Corp , Japan Sewage Works Agency , 日本下水道事業団 , 株式会社荏原製作所
发明人： MORI TAKASHI , MIYAKE HARUO , YAMASHITA SHIGEKI , TANAKA TOSHIHIRO , OTSU TAKESHI
IPC分类号： C02F3/12 , C02F11/00 , C02F11/04
CPC分类号： Y02E50/343 , Y02W10/15
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of more largely reducing the production amount of sludge to be disposed of than a method for returning sludge to an aerobic biological treatment method after anaerobic digestion, in the aerobic biological treatment of organic wastewater. SOLUTION: In the biological treatment of organic wastewater, organic sludge produced in an aerobic biological treatment process and/or organic sludge produced in a first sedimentation process is concentrated to form concentrated sludge and, after the concentrated sludge is subjected to solubilization treatment by ultrasonic treatment, it is decomposed in an anaerobic digestion process and a part or the whole of digested sludge issued from the anaerobic digestion process is returned to the aerobic biological treatment process or the concentrated sludge is decomposed in the anaerobic digestion process and a part of the digested sludge issued from the anaerobic digestion process is solubilized by ultrasonic treatment to be returned to the anaerobic digestion process and a part or the whole of the residual digested sludge is returned to the aerobic biological treatment process, and residual digested sludge is disposed. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够将厌氧消化后的污泥返回到需氧生物处理方法中的废弃物的生产量大大减少的技术，在有机废水的有氧生物处理中。
解决方案：在有机废水的生物处理中，将有机生物处理过程中产生的有机污泥和/或在第一沉淀过程中生成的有机污泥浓缩形成浓缩污泥，浓缩污泥经过溶解处理后通过超声波处理，在厌氧消化过程中分解，将从厌氧消化过程发出的部分或全部消化污泥返回到需氧生物处理过程，或者浓缩污泥在厌氧消化过程中分解，由厌氧消化过程发出的消化污泥通过超声处理溶解回到厌氧消化过程中，部分或全部残留消化污泥回到需氧生物处理过程中，处理残留消化污泥。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2000308803A FLOCCULANT FOR WATER TREATMENT AND ITS PRODUCTION AND FLOCCULATING METHOD FOR WATER 失效
公开(公告)号：JP2000308803A
公开(公告)日：2000-11-07
申请号：JP22546599
申请日：1999-08-09
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI , FUCHU YUICHI , HASEGAWA KAZUHIRO
IPC分类号： B01D21/01 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To easily and rapidly produce an inexpensive flocculant excellent in safety by using an iron-containing silica acidic aq. solution prepared by mixing an aq. solution of ferric ion coexisted with silicic acid, or the like, adding and stirring a water soluble starch and specifying the molar ratio Si/Fe and the pH to simplify the production process. SOLUTION: A prescribed quantity of a ferric salt acidic aq. solution (ferric chloride is suitable) 2 having a prescribed concentration of iron is added into a prescribed quantity of an alkaline sodium silicate aq. solution (water glass aq. solution) 1 containing a prescribed concentration of silica while stirring in a vessel 3 and mixed. As a result, a brown transparent iron ion-containing activated silica having large flocculation effect is easily and rapidly (in several minutes) prepared. Then, a conventional water glass acidifying process, a silica polymerizing process and sulfuric acid and an alkali agent are dispensed with. In such a case, the concentration and the adding quantity of each component is adjusted to have the molar ratio Si/Fe of >=0.2 and pH

3. 发明专利

JP2000093704A PREPARATION OF IRON AND ACTIVATED SILICA COMPOSITE FLOCCULANT 失效
公开(公告)号：JP2000093704A
公开(公告)日：2000-04-04
申请号：JP26506398
申请日：1998-09-18
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI
IPC分类号： B01D21/01 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To provide a method for preparation of an activated silica which is high in performance as a flocculant wherein a small scale can be achieved as a preparation apparatus, preparation operation is easy, and a preparation time is also short. SOLUTION: In method for preparation of the iron and activated silica composite flocculant, an alkali metal silicate aqueous solution 3 of at most 7% in SiO2 concentration is added to be mixed in a ferric salt aqueous solution 2 while it is stirred. In this case an additional amount of the alkali metal silicate aqueous solution 3 to an amount of the ferric salt aqueous solution 2 is set to that a mixed solution of 2 to 6 in pH and 2 to 5% in silica concentration is obtained, and further a ferric salt 5 is added to the mixed solution obtained thus to obtain a mixed solution of which a pH is lowered to under 2. In this case, the ferric salt is preferably ferric chloride.

4. 发明专利

JPH11310412A IRON-ACTIVE SILICA COMPOSITE LIQUID, ITS PRODUCTION AND APPARATUS THEREFOR 失效
公开(公告)号：JPH11310412A
公开(公告)日：1999-11-09
申请号：JP11535698
申请日：1998-04-24
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI
IPC分类号： B01D21/01 , C01B33/143 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To easily obtain active silica in a short time with high quality and reliability as a fluocculant in water treatment, to provide a method for producing the active silica, and to provide a production apparatus therefor. SOLUTION: This active silica is obtained by the following process: an aqueous solution of sodium silicate is mixed with an acidic aqueous solution such as an aqueous solution of a ferric salt at >=30 deg.C so as to be 3-5 wt.% in silica concentration followed by polymerization of the silica component under the condition of pH2.5-5.5, and then, an acidic solution such as of ferric salt is further added to the system to lower the pH value to 1.5-2.5 to effect lower gelling rate. The production apparatus for the active silica is so designed that a sodium silicate aqueous solution inlet 3 and a ferric salt acidic aqueous solution inlet 5 are opened in the interior and, in combination therewith, an in-vessel agitating means 6 is set up.

5. 发明专利

JPH1157740A FLOCCULATING TREATMENT OF WATER 失效
公开(公告)号：JPH1157740A
公开(公告)日：1999-03-02
申请号：JP22836397
申请日：1997-08-25
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI
IPC分类号： B01D21/01 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To provide the flocculating and treating technology of water high in safety and high in the forming effect of flocculated flocks even in a city water treatment by using silicic acid. SOLUTION: In this treating method, a silicic acid aq. soln. 6 having 5-10% SiO2 concn., pH3-4.5 and >=10 mPa.S rotational viscosity is poured into raw water 7 to be treated together with an inorg. metallic salt flocculate 8 such as aluminum (aluminum sulfate, PAC) and iron (ferric chloride, iron polysulfate). In the case, the silicic acid aq. soln. 6 is prepared by adding sodium silicate 4 to strongly acidic water 3 having

6. 发明专利

JP2004034000A Sludge treatment method and apparatus for reducing generation of excess sludge 有权
公开(公告)号：JP2004034000A
公开(公告)日：2004-02-05
申请号：JP2002198593
申请日：2002-07-08
申请人： Ebara Corp , 株式会社荏原製作所
发明人： KOBAYASHI TAKUYA , YAMASHITA SHIGEKI , TANAKA TOSHIHIRO , OTSU TAKESHI
IPC分类号： C02F11/04 , C02F11/00 , C02F11/06 , C02F11/12
CPC分类号： Y02E50/343
摘要： PROBLEM TO BE SOLVED: To provide a sludge treatment method and apparatus capable of effectively reducing the generation of excess sludge by an ultrasonic treatment or by a combination of the ultrasonic treatment and other chemical or physical treatments.
SOLUTION: The method for treating the organic sludge produced in a biological treatment process for organic waste water comprises the steps of: thickening the organic sludge; subjecting the thick sludge thereof to an anaerobic digestion treatment; subjecting the sludge after the anaerobic digestion treatment to solid-liquid separation so as to thicken part or the entire amount of the solid down to 1 to 10%; subjecting the thick sludge to the ultrasonic treatment; and returning the ultrasonically treated sludge to the anaerobic digestion treatment process.
COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2003211158A METHOD AND APPARATUS FOR TREATING DIOXINS-CONTAINING WATER 审中-公开
公开(公告)号：JP2003211158A
公开(公告)日：2003-07-29
申请号：JP2002015235
申请日：2002-01-24
申请人： EBARA CORP
发明人： KONISHI SATOSHI , OTSU TAKESHI , KOGA JOICHI
IPC分类号： C07D319/24 , B01J20/24 , C02F1/28
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for treating dioxins-containing water which can adsorb and remove dioxins contained in water at a high flow rate, treat the water with a small amount of an adsorbent, and stably adsorb and remove the dioxins until the concentration becomes low. SOLUTION: In this treating method for dioxins-containing water, the dioxins- containing water 2 is brought into contact with a natural material 1 of which the main component is keratin or with a material 1 obtained by processing the natural material, thereby adsorbing the dioxins contained in the water. Feather, wool or human hair can be used as the natural material, and the natural material can be processed in a form of powder, a pellet, a filter, or a pill. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2002079003A INORGANIC FLOCCULANT USING HIGHLY PURIFIED FERRIC SALT AND MANUFACTURING METHOD THEREOF AND PROCESSING APPARATUS IN WATER-PURIFICATION PROCESSING 失效
公开(公告)号：JP2002079003A
公开(公告)日：2002-03-19
申请号：JP2000273461
申请日：2000-09-08
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI
IPC分类号： B01D21/01 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To provide a ferric inorganic flocculant and a manufacturing method thereof capable of only remaining several ppb (μg/liter) order of a divalent manganese ion in a flocculant separation processing liquid in a water-purification processing. SOLUTION: In the inorganic flocculant using the highly purified ferric salt, a (Mn/Fe) ratio in the inorganic flocculant is 0.0009 or less of four decimal place at a mass ratio. In a manufacturing method of an inorganic flocculant liquid, a (Mn/Fe) concentration ratio of in the inorganic flocculant liquid is reduced by adding an alkalizing agent and an oxidizing agent selected from the group consisting of a permanganate ion, a persulfate ion and a perchlorate ion to an aqueous ferric slat solution containing a manganese ion and removing the manganese ion. In the method and the apparatus for aggregation-processing of raw water, the flocculant liquid is used.

9. 发明专利

JP2001121197A METHOD FOR PROMOTING GASIFICATION OF ORGANIC WASTE 失效
公开(公告)号：JP2001121197A
公开(公告)日：2001-05-08
申请号：JP30193399
申请日：1999-10-25
申请人： EBARA CORP
发明人： KIRIYAMA KOICHI , KUNITOMO SHINTA , SON HIYO , YAMAUCHI KAZUO , WATANABE AKIRA , OTSU TAKESHI , IGARASHI CHIAKI
IPC分类号： C02F11/04
摘要： PROBLEM TO BE SOLVED: To provide a method for promoting gasification which is capable of evading the degradation in treated water quality and cost effectively promoting the gasification of organic wastes with lesser energy. SOLUTION: This method for promoting the gasification of the organic wastes consists in previously subjecting the organic wastes 1 to a high-voltage pulse discharge treatment 2, then to anaerobic fermentation 3 or subjecting part of the effluent of an anaerobic fermentation tank to the high-voltage pulse discharge treatment, then supplying the effluent again to the anaerobic fermentation tank or subjecting the mixture composed of part of the effluent of the anaerobic fermentation and the organic wastes to the high-voltage pulse discharge treatment, then supplying the same to the anaerobic fermentation tank when generating gaseous methane by subjecting the organic wastes 1 to the anaerobic fermentation 3.

10. 发明专利

JP2000202207A COAGULANT FOR WATER TREATMENT AND PRODUCTION THEREOF 失效
公开(公告)号：JP2000202207A
公开(公告)日：2000-07-25
申请号：JP1191099
申请日：1999-01-20
申请人： EBARA CORP
发明人： KATAOKA KATSUYUKI , OTSU TAKESHI
IPC分类号： B01D21/01 , C02F1/56
摘要： PROBLEM TO BE SOLVED: To produce a coagulant satisfying excellent characteristics only with a simple operation by adding a mixture of alkaline silicate and starch to an acidic aqueous solution containing trivalent iron ions or tetravalent titanium ions and mixing them. SOLUTION: While the acidic aqueous solution 1 containing the tetravalent titanium ions or trivalent iron ions (a titanium tetrachloride-, or a titanium sulfate aqueous solution, or a ferric chloride-, a ferric sulfate-, a poly-ferric sulfate-aqueous solution or a these mixture solution is preferable) is stirred with an agitator 4, the mixture liquid 2 (a water glass and starch mixed aqueous solution) of the alkaline alkali silicate aqueous solution (this is an aqueous solution of sodium silicate, potassium silicate, and water glass, etc., and the water glass aqueous solution is especially suitable, and powder alkali silicate may be directly added to the tetravalent titanium ion- or trivalent iron ion- containing aqueous solution to be mixed) and the starch, is added to the acidic aqueous solution 1 to be mixed. Thus, a novel coagulant having a large coagulation effect can be easily produced with a simple operation without a trouble of gelation.

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