专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPH04197491A OZONE TREATMENT METHOD AND APPARATUS 失效
公开(公告)号：JPH04197491A
公开(公告)日：1992-07-17
申请号：JP32742990
申请日：1990-11-28
申请人： KURITA WATER IND LTD , MUNAKATA CHIKU SUIDOU KIGIYOUD
发明人： SATO SHIN , GOTO YUKIO , TAKADOI TADASHI , TODOROKI KAZUMA , ABE YOSHITERU
IPC分类号： C02F1/50 , C02F1/78
摘要： PURPOSE:To rapidly control the proper injection amount of ozone even when the quality of a solution to be treated is changed by calculating the pseudo- primary reaction speed constant K1 of the solution to be treated and controlling the injection amount of ozone on the basis of the calibration curve formed at every constant K1. CONSTITUTION:In an ozone reaction tower 1 where ozone-containing gas is brought into contact with a solution to be treated, the solution to be treated is supplied to a liquid supply passage 2 and discharged from a drain passage 3. Ozone-containing gas is supplied to the reaction tower 1 from an ozone generator 4 by an ozone injection pipe 5 and exhaust gas is discharged from the reaction tower 1 from an exhaust passage 6. Further, the concn. of ozone dissolved in the treated solution or the concn. of ozone in the exhaust gas is measured by ozone densitometers 9, 10, 13. Furthermore, a pseudo-primary reaction speed constant K is operated from the measured value by an operation apparatus 14. A control apparatus 17 controls the injection amount of ozone on the basis of the calibration curve showing the relation between the injection amount of ozone and the concn. of dissolved ozone or the concn. of exhaust ozone prepared at every constant K1.

22. 发明专利

JPH0153120B2 失效
公开(公告)号：JPH0153120B2
公开(公告)日：1989-11-13
申请号：JP5132480
申请日：1980-04-18
申请人： KURITA WATER IND LTD
发明人： MURAKAMI TAKAFUMI , TAKADOI TADASHI
IPC分类号： C02F1/42 , C02F9/00

23. 发明专利

JPH01228588A TREATMENT OF MERCURY-CONTAINING WASTE WATER 失效
公开(公告)号：JPH01228588A
公开(公告)日：1989-09-12
申请号：JP5575088
申请日：1988-03-09
申请人： KURITA WATER IND LTD
发明人： MURAKAMI YASUNOBU , KATO ISAMU , TAKADOI TADASHI
IPC分类号： C02F1/44 , B01D61/16 , B01D61/22 , B01D65/02 , B01D65/06 , C02F1/52 , C02F1/62
摘要： PURPOSE:To efficiently apply flocculation treatment to mercury-containing waste water to perform membrane separation by washing a membrane lowered in transmission flux by membrane separation with a solution of a heavy metal fixing agent having a predetermined pH value or less to recover the transmission flux. CONSTITUTION:When the transmission flux of a membrane separation apparatus 7 is lowered, the water in a recirculation tank 6 is drained to receive a 0.05-5% solution of a heavy metal fixing agent adjusted to predetermined pH in the recirculation tank 6 and this solution is supplied to the membrane separation apparatus 7 to wash the same. At this washing time, conc. water passes through a pipe 9 while transmitted water passes through a pipe 11 to be recirculated to the recirculation tank 6 for the sake of reuse. After the finish of washing, fresh water or treated water is supplied to the membrane separation apparatus 7 through a pipe 8 to wash the same. Washing waste water is transferred from the recirculation tank 6 to a storage tank and utilized as the heavy metal fixing agent in the later flocculation treatment.

24. 发明专利

JPS5929082A Treatment of waste water of stack gas scrubbing in refuse incineration plant 失效
标题翻译：垃圾焚烧厂垃圾处理废水处理
公开(公告)号：JPS5929082A
公开(公告)日：1984-02-16
申请号：JP13834882
申请日：1982-08-09
申请人： Kurita Water Ind Ltd
发明人： ITOU MASAO , ETOU YOSHIHIRO , TAKADOI TADASHI
IPC分类号： C02F1/62
摘要： PURPOSE: To remove effectively mercury and other heavy metals by adding an S compd. and an Fe compd. at the vicinity of neutrality to the waste water of stack gas scrubbing in a refuse incineration plant to cause reaction then adding an alkali agent to the water to adjust the same basic and subjecting the water to a solid-liquid sepn.
CONSTITUTION: An S compd. (e.g.; Na
2 S) and an Fe compd. (e.g.; FeCl
3 ) are added under 6W8pH conditions to the above-described waste water of stack gas scrubbing to cause reaction. The S compd. in this case is added for the purpose of removing mercury and other heavy metals, and the Fe compd. for the purpose of removing unreacted S ions. An alkali agent such as slaked lime is added to the waste water of stack gas scrubbing subjected to the above-described treatment to adjust the pH thereof to 9W11 and the water is subjected to a solid- liquid sepn. with heavy metals except mercury as insoluble hydroxides. If it is desired to remove F as well, a Ca compd. such as CaCl
2 or the like is added to the water in the fore stage (6W8pH) and a good result is obtd. if Ca(OH)
2 is used as the alkali agent in the post stage.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过添加S化合物有效去除汞和其他重金属。和一个Fe compd 在与垃圾焚烧厂中的堆垛气体的废水中立的中性附近引起反应，然后向水中加入碱剂以调节相同的碱性并使水经受固体液体分离。宪法：（例如，Na 2 S）和Fe化合物。（例如FeCl 3）在6-8pH条件下加入到上述废气中，以进行反应。 S compd。在这种情况下，为了除去汞和其他重金属，以及Fe化合物。以除去未反应的S离子。向经过上述处理的层叠气体洗涤废水中加入熟石灰等碱剂，将其pH调节至9〜11，并对水进行固液分离。除汞以外的重金属是不溶性氢氧化物。如果需要除去F也可以使用Ca compd。例如CaCl2等添加到前级（6-8pH）的水中，得到良好的结果。如果在后期使用Ca（OH）2作为碱剂。

25. 发明专利

JPS5811094A TREATMENT WASTE WATER OF STACK GAS DESULFURIZATION 失效
公开(公告)号：JPS5811094A
公开(公告)日：1983-01-21
申请号：JP10770981
申请日：1981-07-10
申请人： KURITA WATER IND LTD
发明人： ETOU YOSHIHIRO , TAKADOI TADASHI , HAJI HIDEKI , MIURA TORAO
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , C02F1/52 , C02F11/14
摘要： PURPOSE:To improve the dehydratability of sludge and to dehydrate the sludge efficiently by subjecting the waste liquid of stack gas desulfurization discharged from wet type stack gas desulfurization processes to a flocculation treatment, mixing gypsum with the sludge formed by said treatment and dehydrating the sludge. CONSTITUTION:The gypsum slurry formed in stack gas desulfurization processes is supplied through a pipe 23 into a mixing tank 24, where it is mixed with sludge, and more preferably, a high polymer org. flocculating agent is added thereto, then the sludge is dehydrated with a dehydrator 25. In an ordinary stack gas desulfurizer, plural dehydrators are installed and it is a good practice to use part thereof for dehydration of the sludge and in some cases, it is equally well to dehydrate the sludge by returning the sludge to a stack gas desulfurization process and mixing the same with the gypsum slurry. The mixing ratios of the gypsum slurry with respect to the sludge are generally >=0.5pt.wt., more preferably 1-10pts.wt the dry solids of the gypsum slurry based on 1pt.wt. the dry solids of the sludge.

26. 发明专利

JPS57197084A TREATMENT OF WATER CONTAINING BORON AND COD SUBSTANCE 失效
公开(公告)号：JPS57197084A
公开(公告)日：1982-12-03
申请号：JP8003781
申请日：1981-05-28
申请人： KURITA WATER IND LTD
发明人： TAKADOI TADASHI , ETOU YOSHIHIRO , MURAKAMI TAKAFUMI
IPC分类号： C02F1/42 , B01J49/00
摘要： PURPOSE:To carry out ion exchange in good efficiency and to reduce the amount of a regenerating agent, by a method wherein water containing boron and a COD substance is passed through an OH type weakly basic anion exchange resin layer and the obtained eluate is passed through an SO4 type weakly basic anion exchange resin layer. CONSTITUTION:Water containing boron is an ion-exchangeable form such as BO3 or a borofluoride and a COD substance in an ion-exchangeable form as a soluble COD substance such as dithioic acid, polythioic acid or an NS compound is passed through an OH type wealky basic anion exchange resin layer to adsorb the boron by ion exchange and the eluate therefrom is subsequently passed through an SO4 type weakly basic anion exchange resin layer to adsorb the COD substance by ion exchange. The pH of water supplied to the OH type weakly basic anion exchange resin layer is pref. adjusted to 9 or more and that of water supplied to the SO4 type weakly basic anion exchange resin layer is pref. adjusted to 7 or less.

27. 发明专利

JPS5727191A Method for treating water containing fluoride ion 失效
标题翻译：用于处理含氟氟离子的方法
公开(公告)号：JPS5727191A
公开(公告)日：1982-02-13
申请号：JP10241680
申请日：1980-07-28
申请人： Kurita Water Ind Ltd
发明人： ETOU YOSHIHIRO , TAKADOI TADASHI , MURAKAMI TAKAFUMI
IPC分类号： C02F1/58
摘要： PURPOSE: To effectively and highly treat water containing a fluoride ion, by producing sediments under the presence of a magnesium ion and by separating the sediments.
CONSTITUTION: At the first process, a crude water is introdiced to the first reaction tank 1 from a crude water pipe 5, and pH of the crude water is adjusted to 5W8.5 under a condition where calcium ions and/or aluminium ions exist. When pH of the crude water is adjusted, sediments are prodiced. The reacted liquid in the first reaction tank 1 is separated into a solid and a liquid in a precipitation tank 2. The sediment thus obtained is discharged to the outside of the process line through a sludge discharging pipe 8, and the supernatant liquid is introduced into the second reaction tank 3. At the second process, pH of the liquid introdiced from the first process is adjusted to ≥9.5 under the presence of magnesium ions and sediments are produced. The reacted liquid in the second reaction tank 2 is separated into a solid and a liquid in a precipitation tank 4. The supernatant liquid is discharged to the outside of the system through a treat water pipe 11 and a neutralization treatment is performed on the liquid if necessary. The sediments are returned to the first reaction tank 1 through a returning pipe 12 in the third process.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：有效和高效地处理含有氟离子的水，通过在镁离子的存在下产生沉淀物并分离沉淀物。构成：在第一工序中，将粗水从原水管5引入第一反应槽1，在存在钙离子和/或铝离子的条件下将粗水的pH调节至5-8.5。当调整原水的pH值时，产生沉淀物。第一反应槽1中的反应液体在析出槽2中分离成固体和液体。由此获得的沉淀物通过污泥排放管8排出到生产线外部，并将上清液引入第二反应罐3.在第二过程中，在镁离子的存在下将从第一工艺引入的液体的pH调节至> = 9.5，并产生沉淀物。将第二反应槽2中的反应液体分离成析出槽4中的固体和液体。上清液通过处理水管道11排出到系统外部，并对液体进行中和处理，如果必要。沉淀物在第三工序中通过回流管12返回到第一反应槽1。

28. 发明专利

JP2004141746A Method and apparatus for aerobic treatment 有权
公开(公告)号：JP2004141746A
公开(公告)日：2004-05-20
申请号：JP2002308265
申请日：2002-10-23
申请人： Kurita Water Ind Ltd , Nisshin Steel Co Ltd , 日新製鋼株式会社 , 栗田工業株式会社
发明人： NISHIMURA SOSUKE , FUJII HIROYUKI , TAKADOI TADASHI , TOKUHARA MINORU
IPC分类号： C02F3/12 , C02F11/06
CPC分类号： Y02W10/15
摘要： PROBLEM TO BE SOLVED: To obtain a method and an apparatus for aerobic treatment which can reduce the treatment cost and the phosphorus concentration in a treated water by carrying out an aerobic treatment using phosphorus contained in sludge efficiently to reduce the amount of added phosphorus and the amount of generated surplus sludge. SOLUTION: A water to be treated is subjected to an aerobic biological treatment in the presence of a biosludge in an aeration tank 1. The treated liquid is subjected to solid-liquid separation in a solid-liquid separation tank 2, and the separated sludge is returned to the aeration tank 1. After adjusting the pH of the sludge separated in the aeration tank 1 or the solid-liquid separation tank 2, the sludge is reformed to be easily biodegradable by ozonation etc. in a reforming tank 4. Before introducing the reformed liquid into the aeration tank 1 and subjecting it to the biological treatment, a phosphorus insolubilizing agent is added to the reformed liquid and/or the biologically treated liquid to insolubilize phosphorus, and then the liquid is introduced into the aeration tank 1 to retain it during a biological treatment process, thereby phosphorus contained in the sludge is efficiently used to perform the aerobic treatment. COPYRIGHT: (C)2004,JPO

29. 发明专利

JP2003170174A COAGULATING FILTRATION METHOD AND SYSTEM 审中-公开
公开(公告)号：JP2003170174A
公开(公告)日：2003-06-17
申请号：JP2001371614
申请日：2001-12-05
申请人： KURITA WATER IND LTD
发明人： TAKADOI TADASHI
IPC分类号： C02F1/44 , B01D21/01 , C02F1/56
摘要： PROBLEM TO BE SOLVED: To reduce the frequency of chemical cleaning of a membrane solid- liquid separation device by stabilizing the flux of a membrane after adding coagulants in raw water such as river water, ground water, lake water, industrial water or various wastewater and carrying out a coagulation reaction in a coagulation tank and forcedly supplying water after coagulation to a re- coagulation tank with a pump for subjecting it to coagulation again. SOLUTION: Coagulation treatment of the raw water is carried out in the coagulation tank 1, water after coagulation is force-fed with the pump 3 in the re-coagulation tank 4. The organic high molecular coagulant is added, and flocks crushed by the pump 3 are re-coagulated, then the solid-liquid separation is carried out by the membrane separation device 5. The differential pressure of the membrane separation device 5 is measured with the differential pressure measuring device 8. Re-coagulation is properly carried out by controlling the addition of the organic high molecular coagulant by a chemical-feeding amount control device 10 so that the rise value of the differential pressure in a water flow process leading to back washing is within a predetermined allowable range. COPYRIGHT: (C)2003,JPO

30. 发明专利

JP2002159976A TREATMENT METHOD FOR FLUORINE AND MANGANESE ION- CONTAINING WATER 审中-公开
公开(公告)号：JP2002159976A
公开(公告)日：2002-06-04
申请号：JP2001287211
申请日：2001-09-20
申请人： KURITA WATER IND LTD
发明人： TAKADOI TADASHI
IPC分类号： C02F1/44 , C02F1/28 , C02F1/58 , C02F1/64 , C02F1/72
摘要： PROBLEM TO BE SOLVED: To obtain high-quality treated water usable as potable water and to obtain sludge having good dewaterability by treating water containing fluorine ions and manganese ions, such as groundwater and river water. SOLUTION: An aluminum compound and permanganic acid and/or its salt are added to the water containing the fluorine and manganese ions to effect reaction in a reaction chamber 1 and thereafter the water is passed through a membrane separator 2. The permeate is discharged to the outside of the system and, on the other hand, the concentrate is returned to the reaction chamber 1. Accordingly, Al(OH)3 deposits with the sludge in the returned concentrate as a nucleus and the fluorine in the raw water is efficiently adsorbed into this Al(OH)3, by which the sludge having the good dewaterability is obtained. In oxidation of the manganese ions by the permanganate, the concentrate is returned, by which the good treatment is carried out with the smaller consumption of the permanganate and consequently without the occurrence of the problem of the degradation in the treated water quality by the residual permanganate.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式