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公开(公告)号：WO2023091109A1
公开(公告)日：2023-05-25
申请号：PCT/TR2022/051120
申请日：2022-10-12
发明人： UZUNOK, Simge , OZKOC, Guralp , DURMUS, Semih
摘要： The invention relates to a process for purifying cellulose ethers from an aqueous solution. The said process comprises the step of ultrafiltration of the said aqueous solution.
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公开(公告)号：WO2023000108A1
公开(公告)日：2023-01-26
申请号：PCT/CA2022/051138
申请日：2022-07-22
发明人： LIU, Yang , YU, Najiaowa , ZHANG, Lei , MOU, Anqi , SUN, Huijuan , MOHAMMED, Abdulnayeem
摘要： A method of pretreating wastewater sludge including applying an amount of at least 0.01 g/g TSS Ca(ClO)2 to wastewater sludge to enhance digestibility of the sludge and reduce phosphorus concentration therein and then allowing sufficient time for the wastewater sludge to densify to a treated sludge having a specific resistance to filtration (SRF) of 3 to 4 (1010 m/Kg). The resulting treated sludge composition being sterilized, free of harmful bacteria, and useful as a fertilizer, particularly for growing mushrooms.
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公开(公告)号：WO2022210468A1
公开(公告)日：2022-10-06
申请号：PCT/JP2022/014810
申请日：2022-03-28
IPC分类号： C02F1/44 , B01D61/02 , B01D61/04 , C02F1/52 , C02F1/58 , C02F5/00 , C02F5/10 , C02F9/02 , C02F9/04
摘要： （V)原水に逆浸透膜による分離処理を施して透過水と濃縮水とに分離し、(I)高硬度水（例えば、脱硫排水、海水など）にｐＨが９．５～１１．５になるようにアルカリ金属水酸化物を添加し、それによって得られる析出物を除去し、（II)析出物の除去を行った液にｐＨが２．５未満にならない範囲内になるように無機酸と前記濃縮水の一部とを添加し、それによって得られる晶析物を除去し、（III)晶析物の除去を行った液にｐＨが２．５～４．５になるように鉄系凝集剤を添加し、それによって得られる第一フロックを除去し、必要に応じて（IV)第一フロックの除去を行った液にｐＨが４．５～６．５になるように、アルカリ金属水酸化物を添加し、それによって得られる第二フロックを除去し、前記原水を得、（VI)濃縮水の残部に蒸発乾固処理を施して乾燥固形物を得ることを含む、高硬度水の処理方法。
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公开(公告)号：WO2022101803A1
公开(公告)日：2022-05-19
申请号：PCT/IB2021/060410
申请日：2021-11-10
摘要： Systems and methods for removing precipitate from a surface of a water treatment chamber using a dasher assembly having actuator rods connected to a dasher for scraping an interior surface of the chamber. The chamber has a first end, a second end, and an electrolysis rod extending therein. The actuator rods extend within the water treatment chamber and pass through the first end so that portions of the actuator rods are within the chamber and portions are outside the chamber. The dasher includes an aperture so the electrolysis rod can pass through the aperture and translate the dasher from a first to a second location by translation of the actuator rods via an actuator. The dasher may include teeth to score the precipitate as it translates from the first location to the second location.
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5.发明申请
公开(公告)号：WO2021113666A1
公开(公告)日：2021-06-10
申请号：PCT/US2020/063352
申请日：2020-12-04
发明人： NICHOLSON, Mark
IPC分类号： B01D17/02 , C02F1/04 , C02F1/38 , C02F1/40 , C02F1/52 , C02F5/00 , C02F9/00 , B01D9/00 , E21B43/34
摘要： The present invention relates to a process for removing dissolved silica from a high pH brine produced by an evaporator employed in treating a waste stream. The high pH brine is directed to a crystallizer reactor and an acid or CO2 is mixed therewith to reduce the pH of the brine, causing the silica in the brine to precipitate. The brine is then directed to a first solids-liquid separator which produces a slurry containing the precipitated silica. The slurry is split into first and second streams with one stream recycled to the crystallizer reactor while the other slurry stream is directed to a second solids-liquid separator which produces a wet cake containing the silica solids.
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公开(公告)号：WO2021106148A1
公开(公告)日：2021-06-03
申请号：PCT/JP2019/046588
申请日：2019-11-28
发明人： MATHEIS Jurgen , WOLF Florian , HATER Wolfgang
摘要： The present invention relates to anionic copolymers, which are suitable as scaling inhibitors in water bearing systems, in particular as inhibitors for the formation of antimony(III) sulfide-containing scale. The present invention also relates to a method for reducing scaling in water bearing systems, in particular in water loops of geothermal power plants, in which the formation of sulfide-containing scale and especially the formation of antimony(III) sulfide-containing scale may occur. The anionic copolymers have the following characteristics: 1) The copolymers comprise a. polymerized units of a monomer M1, which is a primary amide of a monoethylenically unsaturated monocarboxylic acid having 3 to 6 C atoms and b. polymerized units of a monoethylenically unsaturated monomer M2, which is selected from monoethylenically unsaturated monomer having a sulfonate group and or a sulfate group and monoethylenically unsaturated monomer having a carboxyl group and mixtures thereof; 2) The copolymers have an anionic charge density in the range from 0.5 to 6.0 mol/kg, 3) The sodium salts of the copolymers have a weight average molecular weight Mw of at least 10000 g/mol, as determined by gel permeation chromatography.
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公开(公告)号：WO2021049621A1
公开(公告)日：2021-03-18
申请号：PCT/JP2020/034483
申请日：2020-09-11
申请人： 東洋紡株式会社
摘要： 所定の圧力に昇圧された原液から逆浸透膜を介して水を分離および回収し、濃縮された前記原液である濃縮原液を排出する、逆浸透モジュールと、前記濃縮原液から硬質成分および濁質成分の少なくともいずれかを除去して、第１対象液として排出する、浄化装置と、半透膜と、前記半透膜で仕切られた第１室および第２室と、を有し、前記第１対象液を所定の圧力で前記第１室に流し、第２対象液を前記所定の圧力よりも低い圧力で前記第２室に流すことで、前記第１室内の前記第１対象液に含まれる水を前記半透膜を介して前記第２室内の前記第２対象液に移行させ、前記第１室から濃縮液を排出し、前記第２室から希釈液を排出する、半透膜モジュールと、を備える、濃縮システム。
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公开(公告)号：WO2021016310A1
公开(公告)日：2021-01-28
申请号：PCT/US2020/043000
申请日：2020-07-22
发明人： NICHOLSON, Mark C. , SKADAHL, Corey
摘要： The present invention entails dual centrifuges configured to remove suspended solids, silica, and other precipitants from evaporator brine prior to the brine being disposed of via deep well injection. First, the evaporator brine is directed through a highly efficient first centrifuge configured to remove essentially all suspended solids, including very small suspended solids that typically cannot be retained in a filter or other dewatering devices. The centrate from the first centrifuge, depleted in suspended solids, silica and other precipitants, can be disposed of via deep well injection. The first centrifuge also produces a slurry that is directed to a separate centrifuge that produces a second centrate and waste wet cake. The second centrate is recycled and mixed with the evaporator brine and the mixture is directed to the first centrifuge.
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公开(公告)号：WO2021013434A1
公开(公告)日：2021-01-28
申请号：PCT/EP2020/066581
申请日：2020-06-16
申请人： DRAG'EAU
摘要： L'invention concerne un dispositif (1) de traitement mécanique d'un fluide tel que l'eau, pour restructurer ledit fluide afin d'éviter l'incrustation du calcaire et/ou la formation et le dépôt de boues et/ou les phénomènes de corrosion. Le dispositif (1) est prévu pour être monté en série sur le trajet d'un fluide circulant dans une canalisation. Il comporte un corps (2) d'axe longitudinal (A) pourvu de deux embout-raccords (3, 4) délimitant un orifice d'entrée (5) et un orifice de sortie (6), un déflecteur (16, 17) centré sur l'axe longitudinal (A) en face de l'orifice d'entrée (5), pourvu d'une spirale (22) pour créer un mouvement tourbillonnaire du fluide entrant dans ledit corps (2), et une pluralité de canaux (13, 13') répartis autour dudit déflecteur (16, 17) pour le passage du fluide au travers dudit dispositif (1). Le déflecteur (16, 17) est creux et peut contenir des éléments actifs (20), tels que des aimants permanents, et/ou tout ou partie des canaux (13, 13') peut contenir des éléments réactifs (15), tels que des céramiques.
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公开(公告)号：WO2019230706A1
公开(公告)日：2019-12-05
申请号：PCT/JP2019/021050
申请日：2019-05-28
申请人： 栗田工業株式会社
摘要： 冷却設備の補給水、循環水の導電率、補給水量、及び薬注量を測定する測定器と、データをデータベースに送信する通信機器と、データベースに蓄積したデータを用いて、水質、水バランスから濃縮倍数、循環水中の薬剤濃度、及びｐＨを算出する算出手段とを有する水処理制御監視装置。さらに、算出結果をウェブ上に表示する表示手段を有する。また、測定値及び計算値を用いて報告書を作成する手段を有する。
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