公开(公告)号：US20060019820A1

公开(公告)日：2006-01-26

申请号：US11070007

申请日：2005-03-03

申请人： Tadashi Nakano ,  Takahiro Kawakatsu ,  Hiroaki Kuwano

发明人： Tadashi Nakano ,  Takahiro Kawakatsu ,  Hiroaki Kuwano

IPC分类号： B01J21/16

CPC分类号： C02F1/288 ,  B01J20/0207 ,  B01J20/0288 ,  B01J20/06 ,  B01J20/12 ,  B01J20/28059 ,  B01J20/28083 ,  B01J20/3007 ,  B01J20/3014 ,  B01J20/3064 ,  B01J20/3071 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  C02F1/281 ,  C02F1/283 ,  C02F2101/103 ,  C02F2101/105 ,  C02F2101/14 ,  C02F2303/16

摘要： An anion absorbent comprising sintered clay of porous structure and a rare earth compound supported on the sintered clay. The anion absorbent is produced by a production method of an anion absorbent comprising a mixing step of mixing clay with an additive for making the clay porous, a sintering step of sintering a mixture obtained in the mixing step, and a supporting step of supporting a rare earth compound on the clay before the mixing step and/or on a sintered matter after the sintering step. A water treatment method comprising a step of bringing the anion absorbent into contact with water to be treated at a predetermined pH so as to absorb and thus remove anions in the water to be treated, and a step of bringing the absorbent, which absorbed anions, into contact with solution having pH, which is different from the aforementioned predetermined pH, so as to desorb anions from the absorbent.

摘要翻译： 一种阴离子吸收剂，包括多孔结构的烧结粘土和负载在烧结粘土上的稀土化合物。 阴离子吸收剂通过阴离子吸收剂的制造方法制造，该阴离子吸收剂包括混合粘土与用于制造多孔粘土的添加剂的混合步骤，烧结混合步骤中获得的混合物的烧结步骤以及支持稀土 在混合步骤之前和/或在烧结步骤之后的烧结物上混合土壤化合物。 一种水处理方法，包括使阴离子吸收剂在预定pH下与待处理的水接触以吸收并因此除去待处理水中的阴离子的步骤，以及将吸收的阴离子的吸收剂， 与不同于上述预定pH的pH的溶液接触，以便从吸收剂中解吸阴离子。

公开(公告)号：US20130324678A1

公开(公告)日：2013-12-05

申请号：US13985682

申请日：2012-03-05

申请人： Takahiro Kawakatsu ,  Tetsuya Aoki

发明人： Takahiro Kawakatsu ,  Tetsuya Aoki

IPC分类号： B01D67/00

CPC分类号： B01D67/0097 ,  B01D65/02 ,  B01D2321/168

摘要： Provide is a method capable of effectively improving a rejection of a permeable membrane without remarkably reducing a permeation flux, even if the membrane is seriously degraded. The method for improving a rejection of a permeable membrane supplies an aqueous solution (excluding an aqueous solution having a pH of 7 or less) containing a compound having an amino group and a molecular weight of 1,000 or less through the permeable membrane (amino-treatment step). Since the low molecular weight amino compound is supplied through the permeable membrane, degraded portions of the membrane can be restored without remarkably reducing the permeation flux thereof, and the rejection thereof can be effectively improved.

摘要翻译： 提供一种即使膜严重劣化也能够有效地改善渗透膜的排斥性而不显着降低渗透通量的方法。 改善渗透膜排斥的方法通过渗透膜（氨基处理）提供含有氨基和分子量为1000以下的化合物的水溶液（不包括pH为7以下的水溶液） 步）。 由于通过渗透膜供给低分子量氨基化合物，所以可以恢复膜的劣化部分而不显着降低其渗透通量，并且可以有效地提高其抑制。

公开(公告)号：US20130324664A1

公开(公告)日：2013-12-05

申请号：US13985666

申请日：2012-03-05

申请人： Takahiro Kawakatsu ,  Tetsuya Aoki ,  Kunihiro Hayakawa

发明人： Takahiro Kawakatsu ,  Tetsuya Aoki ,  Kunihiro Hayakawa

IPC分类号： B01D67/00

CPC分类号： B01D67/0097 ,  B01D61/025 ,  B01D65/108 ,  B01D67/0093 ,  B01D71/56 ,  B01D2311/12 ,  C02F1/441

摘要： A method capable of effectively improving a rejection of a reverse osmosis membrane without remarkably reducing a permeation flux, even if the membrane is seriously degraded. An aqueous solution containing a first organic compound having a molecular weight of less than 200, a second organic compound having a molecular weight of 200 to less than 500, and a third organic compound having a molecular weight of 500 or more is passed through the reverse osmosis membrane. The first organic compound is preferably an amino acid or an amino acid derivative. The total concentration of the first organic compound and the second organic compound and the concentration of the third organic compound are each preferably 1 to 500 mg/L.

摘要翻译： 即使膜严重劣化，也能够有效地提高反渗透膜的排斥性而不显着降低渗透通量的方法。 含有分子量小于200的第一有机化合物，分子量为200至小于500的第二有机化合物和分子量为500以上的第三有机化合物的水溶液通过反向 渗透膜。 第一有机化合物优选为氨基酸或氨基酸衍生物。 第一有机化合物和第二有机化合物的总浓度以及第三有机化合物的浓度各自优选为1〜500mg / L。

公开(公告)号：US20070015680A1

公开(公告)日：2007-01-18

申请号：US10545884

申请日：2004-02-23

申请人： Takahiro Kawakatsu ,  Nobuhiro Orita ,  Naoto Hitotsuyanagi

发明人： Takahiro Kawakatsu ,  Nobuhiro Orita ,  Naoto Hitotsuyanagi

IPC分类号： C11D3/37

CPC分类号： G01N33/54346 ,  B01D65/02 ,  B01D2321/164 ,  B01D2321/168 ,  B01D2321/2075 ,  C11D7/261 ,  C11D7/5022 ,  C11D11/0041

摘要： A detergent and a method for washing applicable to selectively permeable membranes are proposed, which can attain washing of selectively permeable membranes deteriorated in its membrane performance, such as the flux, in an efficient manner within a brief time at a higher detergent effect without causing deterioration of the selectively permeable membranes and without damaging safety to human and to environment with superior handling aspect. A detergent comprising a polyol having a molecular weight not higher than 400 and, if necessary, an organic solvent is supplied to the concentrate chamber 3 of the module 1 to carry out washing of the selectively permeable membrane 2 by bringing it into contact with the selectively permeable membrane 2 and, on requirement, water or an alkaline solution is further supplied from the water tank 6 or from the alkali storage 8 to the concentrate chamber 3 of the module 1, in order to recover the membrane performance of the selectively permeable membrane 2.

摘要翻译： 提出了适用于选择性渗透膜的洗涤剂和洗涤方法，其能够以较高的洗涤剂效果在短时间内以有效的方式在不引起劣化的情况下以有效的方式洗涤膜性能如选择性渗透膜（例如通量） 的选择性渗透膜，并且不损害对人类和环境的安全性，具有优良的处理方面。 将分子量不高于400的多元醇和必要时的有机溶剂的洗涤剂供给到模块1的浓缩室3，通过使其与选择性地接触而进行选择性渗透膜2的洗涤 渗透膜2，并且根据需要，水或碱性溶液进一步从水箱6或碱储存器8供给到模块1的浓缩室3中，以回收选择性渗透膜2的膜性能 。

公开(公告)号：US09136104B2

公开(公告)日：2015-09-15

申请号：US13884350

申请日：2011-11-11

申请人： Takaaki Chuuman ,  Takahiro Kawakatsu ,  Katsunobu Kitami ,  Hiroshi Morita

发明人： Takaaki Chuuman ,  Takahiro Kawakatsu ,  Katsunobu Kitami ,  Hiroshi Morita

IPC分类号： B08B7/04 ,  H01L21/02 ,  B08B3/04 ,  B08B3/00 ,  B08B3/02 ,  H01L21/67

CPC分类号： H01L21/02052 ,  B08B3/00 ,  B08B3/02 ,  B08B3/04 ,  H01L21/67057

摘要： A silicon wafer after being cleaned by using a cleaning liquid is rinsed by using carbonic water. According to such a silicon wafer cleaning method, generation of static due to a rinsing treatment is not caused, so that an electrostatic breakdown is not caused, adhesion of dirt to a cleaned silicon wafer surface due to the static is not caused, adhesion of metal impurities can be prevented in the rinsing treatment of the silicon wafer and, while giving consideration to the cost, furthermore, a rinsing treatment using a clean rinsing liquid free from causing any residue can be performed.

摘要翻译： 通过使用清洗液清洗后的硅晶片通过使用碳酸水进行冲洗。 根据这样的硅晶片清洗方法，不会产生由于进行漂洗处理而产生的静电，所以不会产生静电击穿，不会引起由静电引起的污物对清洗过的硅晶片表面的附着，金属的附着 可以防止在硅晶片的漂洗处理中产生杂质，并且在考虑成本的同时，可以进行使用不产生任何残留物的清洁冲洗液的漂洗处理。

公开(公告)号：US20120168370A1

公开(公告)日：2012-07-05

申请号：US13496785

申请日：2010-09-27

申请人： Tetsuya Aoki ,  Takahiro Kawakatsu

发明人： Tetsuya Aoki ,  Takahiro Kawakatsu

IPC分类号： B01D65/06 ,  B01D71/06

CPC分类号： B01D67/0093 ,  B01D61/02 ,  B01D65/108 ,  B01D71/56 ,  B01D2321/168 ,  C02F1/001 ,  C02F1/32 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4695 ,  C02F1/66 ,  C02F1/683 ,  C02F2103/04

摘要： Provided is a method capable of effectively improving the rejection of a membrane without considerably lowering the permeation flux, even when the membrane has significantly degraded. The method of improving the rejection of a permeable membrane includes a step (amino treatment step) of passing an aqueous solution (amino treatment water) having a pH of 7 or less and containing an amino group-containing compound having a molecular weight of 1000 or less through the permeable membrane. After this amino treatment step, water having a higher pH than the amino treatment water is allowed to pass through the permeable membrane. Thus, by allowing the low-molecular-weight amino compound to pass through the membrane, a degraded portion of the membrane can be restored without considerably lowering the permeation flux of this permeable membrane, and the rejection can be effectively improved.

摘要翻译： 提供了即使当膜显着劣化时，能够有效地改善膜的排斥性而不显着降低渗透通量的方法。 提高渗透膜排斥的方法包括使pH7以下的水溶液（氨基处理水）通过并含有分子量为1000的含氨基化合物的工序（氨基处理工序），或 少通过渗透膜。 在该氨基处理步骤之后，允许具有比氨基处理水更高的pH的水通过可渗透膜。 因此，通过使低分子量氨基化合物通过膜，可以恢复膜的降解部分而不显着降低该透过膜的渗透通量，并且可以有效地提高排斥。

公开(公告)号：US20100025329A1

公开(公告)日：2010-02-04

申请号：US12448876

申请日：2008-01-22

申请人： Takahiro Kawakatsu ,  Akihide Hirano

发明人： Takahiro Kawakatsu ,  Akihide Hirano

IPC分类号： C02F1/68 ,  C02F1/44 ,  C02F1/72

CPC分类号： B01D61/04 ,  B01D61/025 ,  B01D65/08 ,  B01D2311/04 ,  B01D2321/168 ,  C02F1/283 ,  C02F1/32 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/56 ,  C02F1/72 ,  C02F9/00 ,  C02F2101/203 ,  C02F2303/02 ,  B01D2311/12 ,  B01D2311/246

摘要： A method for treatment with a reverse osmosis membrane to reduce decrease in flux that occurs even under the conditions that water supplied to a reverse osmosis membrane treatment apparatus contains only a trace amount of iron and that the formation of scales of substances such as calcium and silica is prohibited. A method for performing a treatment with a reverse osmosis membrane to treat raw water containing iron at 1000 μg/L or less as total iron with a reverse osmosis membrane, including a step of adding a compound having a sulfo group to the raw water.

摘要翻译： 即使在供给反渗透膜处理装置的水中仅含有微量铁并且形成诸如钙和二氧化硅的物质的氧化皮的条件下，也可以使用反渗透膜处理的方法来减少通量的降低 被禁止。 一种用反渗透膜进行处理的方法，用反渗透膜处理含有1000mug / L以下的铁的原水作为总铁，包括向原水中加入具有磺基的化合物的工序。

公开(公告)号：US20130291891A1

公开(公告)日：2013-11-07

申请号：US13884350

申请日：2011-11-11

申请人： Takaaki Chuuman ,  Takahiro Kawakatsu ,  Katsunobu Kitami ,  Hiroshi Morita

发明人： Takaaki Chuuman ,  Takahiro Kawakatsu ,  Katsunobu Kitami ,  Hiroshi Morita

IPC分类号： H01L21/02

CPC分类号： H01L21/02052 ,  B08B3/00 ,  B08B3/02 ,  B08B3/04 ,  H01L21/67057

摘要： A silicon wafer after being cleaned by using a cleaning liquid is rinsed by using carbonic water. According to such a silicon wafer cleaning method, generation of static due to a rinsing treatment is not caused, so that an electrostatic breakdown is not caused, adhesion of dirt to a cleaned silicon wafer surface due to the static is not caused, adhesion of metal impurities can be prevented in the rinsing treatment of the silicon wafer and, while giving consideration to the cost, furthermore, a rinsing treatment using a clean rinsing liquid free from causing any residue can be performed.

摘要翻译： 通过使用清洗液清洗后的硅晶片通过使用碳酸水进行冲洗。 根据这样的硅晶片清洗方法，不会产生由于进行漂洗处理而产生的静电，所以不会产生静电击穿，不会引起由静电引起的污物对清洗过的硅晶片表面的附着，金属的附着 可以防止在硅晶片的漂洗处理中产生杂质，并且在考虑成本的同时，可以进行使用不产生任何残留物的清洁冲洗液的漂洗处理。

公开(公告)号：US08025159B2

公开(公告)日：2011-09-27

申请号：US11664996

申请日：2005-10-17

申请人： Takahiro Kawakatsu ,  Nobuhiro Orita ,  Kunihiro Hayakawa

发明人： Takahiro Kawakatsu ,  Nobuhiro Orita ,  Kunihiro Hayakawa

IPC分类号： B01D63/00

CPC分类号： B01D61/025 ,  A01K2217/05 ,  A01K2227/105 ,  B01D61/027 ,  B01D61/16 ,  B01D65/08 ,  B01D67/0088 ,  B01D69/02 ,  B01D2311/04 ,  B01D2311/12 ,  B01D2321/168 ,  B01D2321/28 ,  B01D2323/02 ,  B01D2325/14 ,  B01D2325/16 ,  B01D2325/18 ,  B01D2325/28 ,  C02F1/44 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444

摘要： An agent for increasing the rejection with a permeable membrane which comprises an ionic macromolecule having a weight-average molecular weight of 100,000 or greater; a process for increasing the rejection with a permeable membrane which comprises treating a permeable membrane with the agent; a permeable membrane which is treated in accordance with the process; and a process for water treatment which comprises using the permeable membrane are disclosed. By using the above agent, an increased rejection of inorganic electrolytes and organic compounds soluble in water can be maintained for a long time easily and safely at the location of the use of the membrane without extreme decrease in the flux of permeation in the membrane separation using a selective permeable membrane such as a nano filtration membrane and a reverse osmosis membrane.

摘要翻译： 一种用可渗透膜增加排斥的试剂，其包含重均分子量为100,000或更大的离子大分子; 用渗透膜增加排斥的方法，该方法包括用所述试剂处理渗透膜; 根据该方法处理的可渗透膜; 并且公开了一种包括使用该渗透膜的水处理方法。 通过使用上述试剂，可以在使用膜的位置上容易且安全地保持长时间无机电解质和可溶于水的有机化合物的排斥，而不会极大地降低膜分离中的渗透通量，使用 选择性渗透膜，例如纳滤膜和反渗透膜。

公开(公告)号：US20090266764A1

公开(公告)日：2009-10-29

申请号：US12225604

申请日：2007-03-23

申请人： Takahiro Kawakatsu

发明人： Takahiro Kawakatsu

IPC分类号： C02F1/44 ,  C07C43/11

CPC分类号： B01D61/025 ,  B01D61/027 ,  B01D67/0088 ,  B01D2325/20 ,  B01D2325/34 ,  C02F1/44 ,  C02F1/441 ,  C02F1/442

摘要： An agent for increasing the rejection of a nanofiltration membrane or a reverse osmosis membrane which comprises a compound having a polyalkylene glycol chain having a weight-average molecular weight of 2,000 to 6,000; a process for increasing the rejection of a nanofiltration membrane or a reverse osmosis membrane which comprises bringing the nanofiltration membrane or the reverse osmosis membrane into contact with an aqueous solution of a compound having a polyalkylene glycol chain which is obtained by diluting the agent for increasing the rejection of a nanofiltration membrane or a reverse osmosis membrane described above with water; a nanofiltration membrane or a reverse osmosis membrane exhibiting a rejection increased in accordance with the process; and a process and an apparatus for water treatment using the nanofiltration membrane or the reverse osmosis membrane. The rejection and, in particular, the rejection to nonionic solutes, of a nanofiltration membrane or a reverse osmosis membrane can be increased while the flux is kept at a great value.

摘要翻译： 用于增加纳滤膜或反渗透膜的排斥性的试剂，其包括具有重均分子量为2,000至6,000的聚亚烷基二醇链的化合物; 用于增加纳滤膜或反渗透膜的排斥的方法，其包括使纳滤膜或反渗透膜与具有聚亚烷基二醇链的化合物的水溶液接触，所述化合物通过稀释用于增加 用水去除上述纳滤膜或反渗透膜; 纳滤膜或反渗透膜根据该方法增加; 以及使用纳滤膜或反渗透膜进行水处理的方法和装置。 可以增加纳米过滤膜或反渗透膜的排斥，特别是对非离子溶质的排斥，同时将通量保持在很大的值。