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1. 发明公开

US20230173778A1 SEPARATION DEVICE 审中-公开
公开(公告)号：US20230173778A1
公开(公告)日：2023-06-08
申请号：US17906091
申请日：2021-03-15
申请人： Metawater Co., Ltd.
发明人： Masafumi TAN
IPC分类号： B30B9/16 , B30B9/12 , C02F11/121
CPC分类号： B30B9/166 , B30B9/128 , C02F11/121
摘要： Capable of increasing both solid-liquid separation efficiency and cleanability. A separation device includes a casing including an object discharging port on a first direction E1 side than an object feeding port, and a separated liquid discharging port on a second direction E2 side than the object feeding port; a screw shaft; a first screw blade having a second surface that faces space Sla into which a pre-object is fed from the object feeding port in the casing; and a second screw blade having a first surface that faces the space Sla into which the pre-object is fed from the object feeding port in the casing. An end part of the first screw blade on the first direction E1 side is placed on the first direction E1 side than an end part of the second screw blade on the first direction E1 side.

2. 发明授权

US11174181B2 Accelerated oxidation treatment method and accelerated oxidation treatment device 有权
公开(公告)号：US11174181B2
公开(公告)日：2021-11-16
申请号：US16090643
申请日：2017-04-05
申请人： METAWATER Co., Ltd.
发明人： Yasuhiro Kato , Kensuke Okuda , Michiko Aoki , Naoki Kanekawa
IPC分类号： C02F1/72 , C02F1/78 , C02F1/00
摘要： An accelerated oxidation treatment method of performing oxidation treatment upon treatment water by supplying ozone and hydrogen peroxide to the treatment water, including an accelerated oxidation treatment process of bringing hydrogen peroxide and ozone into contact with the treatment water, and a bromate ion concentration measurement process of measuring the bromate ion concentration in the treatment water after the accelerated oxidation treatment process, with the amount of hydrogen peroxide supplied in the accelerated oxidation treatment process being adjusted on the basis of the measured value of bromate ion concentration.

3. 发明授权

US10773981B2 Sewage treatment system having a trickling filter with wash unit 有权
公开(公告)号：US10773981B2
公开(公告)日：2020-09-15
申请号：US14088785
申请日：2013-11-25
申请人： METAWATER CO., LTD.
发明人： Atsushi Miyata , Shigeki Takeda , Tetsutarou Kuruma
IPC分类号： C02F3/04 , B01D29/66 , C02F3/06 , C02F3/08 , C02F3/00 , C02F3/10
摘要： A sewage treatment system, includes a solid-liquid separating apparatus having a first filtering medium packed layer packed with a predetermined filtering medium, configured to separate sewage to be treated into solid components and filtered water by passing the sewage through the first filtering medium packed layer upward, and configured to reversely wash the first filtering medium packed layer by passing the filtered water through the first filtering medium packed layer downward at a predetermining timing; and a trickling filter installed on a latter stage of the solid-liquid separating apparatus, having a second filtering medium packed layer packed with a filtering medium attached with microorganisms, and configured to allow the filtered water to fall into the second filtering medium packed layer by trickling the filtered water onto an upper part of the second filtering medium packed layer to flow out treated water acquired by biotreating the filtered water by the microorganisms.

4. 发明授权

US10669167B2 Water treatment device and water treatment method 审中-公开
公开(公告)号：US10669167B2
公开(公告)日：2020-06-02
申请号：US16399070
申请日：2019-04-30
申请人： NIKKISO CO., LTD. , METAWATER Co., Ltd. , SENKO RIKEN Co., Ltd.
发明人： Tetsumi Ochi , Shinya Watanabe , Junichi Shiga , Tsukasa Kusano , Eiichi Tsuga , Yusuke Kawakami
IPC分类号： C02F1/32
摘要： A water treatment device includes: a dual-pipe structure unit including an outer pipe, an inner pipe provided in the outer pipe, and a prevention member provided between the outer pipe and the inner pipe; and a light source unit radiating ultraviolet light in the axial direction to irradiate water subject to treatment flowing in the inner pipe. The inner pipe includes an opposing end facing the light source unit across a gap and an inflow end positioned opposite to the opposing end. The outer pipe includes an outflow port provided on an outer circumferential surface of the outer pipe. The water subject to treatment flowing out of the inner pipe via the gap flows out from the outflow port.

5. 发明授权

US10358365B2 Distributor pipe and trickling filter 有权
公开(公告)号：US10358365B2
公开(公告)日：2019-07-23
申请号：US15256932
申请日：2016-09-06
申请人： Metawater Co., Ltd.
发明人： Masao Tabata , Tomoki Kurinami
IPC分类号： B05B1/20 , C02F3/04 , B05B3/06 , B05B3/02 , C02F103/00
摘要： A distributor pipe includes: a main pipe including a cylindrical part; and a plurality of branch pipes communicating with the main pipe and arranged, on a cylindrical curved surface of the main pipe, side by side along a longitudinal direction of the main pipe. A pipe diameter ratio D1/D0 of a pipe diameter D1 of the branch pipe to a pipe diameter D0 of the main pipe is greater than 0.2 and less than 0.8, and the plurality of branch pipes are arranged according to: respective effluent flow ratios, at a time a liquid flows into the main pipe in a predetermined flow velocity range, determined in accordance with respective arrangement orders of the plurality of branch pipes along a direction in which the liquid flows and along the longitudinal direction of the main pipe; and respective areas of circular or hollow-circular sections allotted to the plurality of branch pipes.

6. 发明授权

US10322958B2 Sludge dewatering system 有权
公开(公告)号：US10322958B2
公开(公告)日：2019-06-18
申请号：US14721173
申请日：2015-05-26
申请人： Metawater Co., Ltd.
发明人： Yoshiyuki Sugawara , Tadashi Kunitani , Yoshitaka Hashimoto
IPC分类号： C02F11/123 , B01D33/58 , C02F11/14 , B01D33/04 , B01D33/46 , B01D33/64 , C02F1/00
摘要： A sludge dewatering system includes: a concentration apparatus that concentrates sludge while conveying the sludge on a top surface of a filter body; and a dewatering apparatus that subjects the sludge discharged from the concentration apparatus to pressure dewatering. The concentration apparatus includes: a filtering unit that subjects the sludge, which has been added with a first chemical agent, to gravity filtration; a chemical feeder that adds a second chemical agent to the sludge conveyed in the filtering unit; and a moving mechanism that moves the sludge, which has been added with the second chemical agent, in a direction intersecting a conveyance direction of the filter body.

7. 发明申请

US20190112210A1 ACCELERATED OXIDATION TREATMENT METHOD AND ACCELERATED OXIDATION TREATMENT DEVICE 审中-公开
公开(公告)号：US20190112210A1
公开(公告)日：2019-04-18
申请号：US16090643
申请日：2017-04-05
申请人： METAWATER Co., Ltd.
发明人： Yasuhiro KATO , Kensuke OKUDA , Michiko AOKI , Naoki KANEKAWA
IPC分类号： C02F1/72 , C02F1/78 , C02F1/00
摘要： An accelerated oxidation treatment method of performing oxidation treatment upon treatment water by supplying ozone and hydrogen peroxide to the treatment water, including an accelerated oxidation treatment process of bringing hydrogen peroxide and ozone into contact with the treatment water, and a bromate ion concentration measurement process of measuring the bromate ion concentration in the treatment water after the accelerated oxidation treatment process, with the amount of hydrogen peroxide supplied in the accelerated oxidation treatment process being adjusted on the basis of the measured value of bromate ion concentration.

8. 发明授权

US10000403B2 Organic-waste-processing apparatus, processing method, and control apparatus 有权
公开(公告)号：US10000403B2
公开(公告)日：2018-06-19
申请号：US14499330
申请日：2014-09-29
申请人： Metawater Co., Ltd.
发明人： Takaaki Kanagawa , Yoshimasa Tomibe , Koki Sato , Kosuke Kamiya , Masuo Inoue
IPC分类号： B01D21/30 , C02F11/12 , C02F1/00 , C02F11/06 , F23G5/04 , F23G5/12 , F23G5/30 , F23G5/50 , F23G7/00 , G05B15/02 , G06Q10/00
CPC分类号： C02F11/12 , C02F1/008 , C02F11/06 , C02F2303/10 , F23G5/04 , F23G5/12 , F23G5/30 , F23G5/50 , F23G7/001 , F23G2201/20 , F23G2207/20 , F23G2207/30 , F23G2207/40 , F23G2900/55011 , G05B15/02 , G06Q10/30 , Y02E20/12 , Y02W10/30 , Y02W10/40 , Y02W90/20
摘要： An organic-waste-processing apparatus reducing a moisture of, and conducting a thermal operation process to, an organic waste, includes: a moisture-reducing unit; a combustion unit; a combustion-energy-supply unit; an energy-supply-operation controller; an organic-waste-energy-estimating unit; a total-energy-consumption measuring unit; a relation-maintaining unit; a quantitative-relationship-grasping unit; and a moisture reduction controller. The moisture reduction controller controls an operation of the moisture-reducing unit so that the estimated value of the organic waste energy to be estimated by the organic-waste-energy-estimating unit is directed in a direction reducing a quantitative difference from the optimum value of the organic waste energy based on the quantitative relationship grasped by the quantitative-relationship-grasping unit between the optimum value of the organic waste energy and the latest estimated value of the organic waste energy.

9. 发明授权

US09868091B2 Transverse-mounted membrane filtration apparatus 有权
公开(公告)号：US09868091B2
公开(公告)日：2018-01-16
申请号：US14493564
申请日：2014-09-23
申请人： Metawater Co., Ltd.
发明人： Junpei Tsukamoto , Shinichi Sakata
IPC分类号： B01D65/08 , B01D65/02 , B01D71/02 , C02F1/44 , B01D63/08 , B01D63/10 , C02F3/12
CPC分类号： B01D71/02 , B01D63/08 , B01D65/02 , B01D65/08 , B01D2321/185 , C02F1/44 , C02F1/444 , C02F3/1268 , C02F2303/16 , Y02W10/15
摘要： A transverse-mounted membrane filtration apparatus includes an air diffuser device including a shelf-shaped member and a gas-feeding unit, the shelf-shaped member including a plurality of shelf boards being arranged in a flow path segment at an immediate upstream of an end surface of a membrane element with a predetermined distance from the end surface of the membrane element and covering an entire flow path of the membrane element along a vertical direction, the gas-feeding unit feeding a gas to the raw water for washing the membrane element through a gas-feeding port provided at a bottom portion of a flow path of the shelf-shaped member. Herein a shelf board at a lowermost position of the shelf-shaped member is inclined toward a side of the end surface of the membrane element in a vertically upper direction.

10. 发明授权

US08246830B2 Method and device for removing biological nitrogen and support therefor 有权
标题翻译：用于去除生物氮并支持的方法和装置
公开(公告)号：US08246830B2
公开(公告)日：2012-08-21
申请号：US13167327
申请日：2011-06-23
申请人： Shigeki Takeda
发明人： Shigeki Takeda
IPC分类号： C02F3/30
CPC分类号： C02F3/302 , C02F3/006 , C02F3/087 , C02F3/109 , C02F3/341 , C02F3/348 , C02F2209/02 , C02F2209/04 , C02F2209/06 , C02F2209/15 , C02F2209/16 , C02F2209/18 , C02F2209/22 , Y02W10/15
摘要： Provided is a biological nitrogen removal method which includes, causing to flow a support having, on the surface portion thereof, a two-layered microbial film which holes, in the outer layer, nitrite type nitrifying bacteria or aerobic bacteria and nitrite type nitrifying bacteria as a dominant species and, in the inner layer, anaerobic ammonia oxidizing bacteria as a dominant species while being surrounded with the nitrite type nitrifying bacteria; and thereby carrying out denitrification of the water to be treated by making use of the anaerobic ammonia oxidation reaction. In the biological nitrogen removal method, a feed rate of the support (total surface area of the support per unit capacity of the reaction tank) is adjusted so that an amount of nitrous acid produced by the nitrite type nitrification reaction through the action of the nitrite type nitrifying bacteria reaches a level to inhibit a nitrate type nitrification reaction.
摘要翻译：本发明提供一种生物除氮方法，其特征在于，使其表面部分上具有两层微生物膜的外壳中的亚硝酸盐型硝化细菌或需氧细菌和亚硝酸盐型硝化细菌的两层微生物膜，优势种，在内层，厌氧氨氧化细菌为主要物种，同时被亚硝酸盐型硝化细菌包围; 从而通过利用厌氧氨氧化反应进行待处理水的脱氮。在生物除氮方法中，调节载体（反应槽的每单位容量的载体的总表面积）的进料速率，使得通过亚硝酸盐的作用通过亚硝酸盐型硝化反应产生的亚硝酸的量硝化细菌达到硝酸盐硝化反应的水平。

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