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公开(公告)号：US09341560B2
公开(公告)日：2016-05-17
申请号：US14373236
申请日：2013-01-21
Applicant: KEMIRA OYJ
Inventor： Marko Kolari , Tuija Suhonen , Jukka-Pekka Sirvio , Iiris Joensuu
CPC classification number: G01N17/04 , D21H21/04 , D21H21/36 , D21H23/20 , G01N27/041
Abstract: Embodiments of the present disclosure include methods to control the quantity of vapor phase corrosion, devices, and the like.
Abstract translation: 本公开的实施例包括控制气相腐蚀量，装置等的方法。
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公开(公告)号：US12044607B2
公开(公告)日：2024-07-23
申请号：US17418510
申请日：2019-12-20
Applicant: KEMIRA OYJ
Inventor： Iiris Joensuu , Marjatta Piironen , Andy Bergeron , Travis Bjerketvedt
IPC: G01N15/06 , G01N15/075 , G01N33/34
CPC classification number: G01N15/06 , G01N33/343 , G01N15/075
Abstract: A sample of an aqueous stream is conducted to an optical measurement device. A hydrophobic dye is added. The sample is fractionated into fractions according to particle size or mass. Fluorescence intensity values and light scattering intensity values for the fractions are measured. Fluorescence intensity values of the fractions are added together thus obtaining a sum of the fluorescence intensity values. Light scattering intensity values of the fractions are added together, thus obtaining a sum of the light scattering intensity values. A hydro-phobicity density of the particles in the sample, is calculated by dividing the sum of the fluorescence intensity values with the sum of the light scattering intensity values. A concentration of hydrophobic contaminants in the aqueous stream is monitored and controlled based on the calculated hydrophobicity density of the particles in the sample.
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3.发明授权公开(公告)号：US11866356B2
公开(公告)日：2024-01-09
申请号：US16339920
申请日：2017-10-06
Applicant: KEMIRA OYJ
Inventor： Mehrdad Hesampour , Roderick Abinet , Marjatta Piironen , Eija Korte , Iiris Joensuu
IPC: B01D65/02 , B01D65/08 , C02F1/24 , C02F1/52 , C02F1/28 , C02F1/44 , C02F9/00 , C02F103/10 , C02F103/28 , C02F103/32 , C02F103/36 , C02F103/02
CPC classification number: C02F9/00 , B01D65/02 , B01D65/08 , C02F1/24 , C02F1/281 , C02F1/44 , C02F1/5209 , C02F2103/02 , C02F2103/10 , C02F2103/32 , C02F2103/365 , C02F2209/001 , C02F2209/003 , C02F2209/11
Abstract: In a water treatment system, a pretreatment chemical is added to water stream in a pretreatment process including a coagulation, flocculation and separation to reduce amount of dissolved and/or particulate matter in the water stream. Hydrophobic conditions in the water stream are monitored upstream or downstream from adding the pretreatment chemicals. Dosing of the pretreatment chemical to the water stream is controlled based on the monitored hydrophobic conditions. Thereby a membrane fouling in subsequent membrane filtration stage can be minimized.
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公开(公告)号：US12072279B2
公开(公告)日：2024-08-27
申请号：US17297309
申请日：2019-11-27
Applicant: Kemira Oyj
Inventor： Marko Kolari , Iiris Joensuu
CPC classification number: G01N17/04 , G01N33/343
Abstract: A method to determine vapor phase corrosion load in paper and board manufacturing system is disclosed. The method allows optimizing oxidative biocide content in aqueous solutions, suspensions and slurries in the paper and board manufacturing system. The method is based on determination of redox values (rH) of the system during determined time period. A correlation between rH values exceeding a predetermined rH threshold values and corrosion load provides an estimate of increased or decreased corrosion load and allows timely changes to biocide dosage.
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公开(公告)号：US11046590B2
公开(公告)日：2021-06-29
申请号：US16065515
申请日：2016-12-22
Applicant: KEMIRA OYJ
Inventor： Marjatta Piironen , Iiris Joensuu , Mehrdad Hesampour , Jaakko Ekman
IPC: C02F1/00 , G01N21/64 , G01N21/85 , G01N21/94 , C02F1/44 , C02F1/52 , G06K9/20 , G01N17/00 , C12M1/34 , G06K9/03 , C12M1/00 , G06K9/62 , C02F103/02 , C02F103/10 , C02F103/28 , C02F103/08
Abstract: A method and apparatus for monitoring deposit formation in a process having an aqueous flow is provided. According to exemplary embodiments, a feed flow of an aqueous liquid is provided onto a receiving surface to be monitored. At least part of a receiving surface is illuminated with at least one light source. Visual data is collected across the receiving surface and analyzed. The quality and type of deposition attached to the receiving surface is classified based on information obtained from the analyzed visual data, and a quantitative scaling and/or fouling indication is computed based on the classification.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10988392B2
公开(公告)日：2021-04-27
申请号：US16088749
申请日：2017-03-31
Applicant: KEMIRA OYJ
Inventor： Marjatta Piironen , Iiris Joensuu , Mehrdad Hesampour
IPC: C02F1/52 , C02F1/24 , C02F1/44 , C02F1/56 , G01N15/02 , G01N15/06 , G01N33/18 , G05B11/32 , C02F1/00
Abstract: Methods and systems are disclosed for optimization of coagulation and/or flocculation in a water treatment process. According to exemplary embodiments, samples are taken from an aqueous liquid and the samples are monitored with an imaging device to capture visual data of particles dispersed or suspended in the liquid. The particles are classified into particle types based on the visual data and a particle size distribution indication is computed for each classified particle type. The particle size distribution indication is then compared to a predetermined particle size distribution value, and in response to a difference detected, dosage of at least one coagulation and/or flocculation agent in the water treatment process can be adjusted.
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7.发明申请公开(公告)号：US20200223719A1
公开(公告)日：2020-07-16
申请号：US16088749
申请日：2017-03-31
Applicant: KEMIRA OYJ
Inventor： Marjatta Piironen , Iiris Joensuu , Mehrdad Hesampour
Abstract: Methods and systems are disclosed for optimization of coagulation and/or flocculation in a water treatment process. According to exemplary embodiments, samples are taken from an aqueous liquid and the samples are monitored with an imaging device to capture visual data of particles dispersed or suspended in the liquid. The particles are classified into particle types based on the visual data and a particle size distribution indication is computed for each classified particle type. The particle size distribution indication is then compared to a predetermined particle size distribution value, and in response to a difference detected, dosage of at least one coagulation and/or flocculation agent in the water treatment process can be adjusted.
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公开(公告)号：US09989476B2
公开(公告)日：2018-06-05
申请号：US15038483
申请日：2014-11-18
Applicant: Kemira Oyj
Inventor： Lari Vähäsalo , Iiris Joensuu , Marjatta Piironen
IPC: G01N21/85 , B03B7/00 , C09B67/32 , G01N21/27 , G01N21/59 , G01N21/82 , G01N31/22 , G01N33/18 , D21H23/08 , G01N15/06 , G01N21/31 , G01N33/34 , G01N21/78 , D21H23/78 , C09B21/00 , G01N15/00 , C02F1/52 , G01N21/83 , G01N21/84 , G01N27/447 , G01N21/77
CPC classification number: G01N21/85 , B03B7/00 , C02F1/5209 , C09B21/00 , C09B67/0075 , D21H23/08 , D21H23/78 , G01N15/06 , G01N21/274 , G01N21/314 , G01N21/59 , G01N21/78 , G01N21/82 , G01N21/83 , G01N27/447 , G01N31/22 , G01N33/182 , G01N33/343 , G01N2015/0053 , G01N2015/0092 , G01N2015/0693 , G01N2021/3155 , G01N2021/7783 , G01N2021/8411 , G01N2021/8416 , G01N2021/8557 , G01N2201/127 , G01N2201/129
Abstract: The present invention concerns a method of optical measurement of an aqueous stream, and of processing the results of the measurement in order to determine the anionic charge of the stream, the method being carried out by measuring the light absorption of the stream and predicting the amount of anionic groups in the stream using a mathematical processing, such as mathematical calculations. Particularly, the method includes the steps of adding an amount of a cationic dye to the aqueous stream, measuring the light absorption spectra of the obtained dye-containing stream, and processing the obtained light absorption spectrum using said mathematical processing in order to obtain the anionic charge. The invention also concerns the use of the obtained spectrum in determining the turbidity of the stream, as well as a device suitable for use in carrying out the method.
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9.发明授权公开(公告)号：US12202756B2
公开(公告)日：2025-01-21
申请号：US18527492
申请日：2023-12-04
Applicant: KEMIRA OYJ
Inventor： Mehrdad Hesampour , Roderick Abinet , Marjatta Piironen , Eija Korte , Iiris Joensuu
IPC: B01D65/08 , B01D65/02 , C02F1/24 , C02F1/28 , C02F1/44 , C02F1/52 , C02F9/00 , C02F103/02 , C02F103/10 , C02F103/28 , C02F103/32 , C02F103/36
Abstract: In a water treatment system, a pretreatment chemical is added to water stream in a pretreatment process including a coagulation, flocculation and separation to reduce amount of dissolved and/or particulate matter in the water stream. Hydrophobic conditions in the water stream are monitored upstream or downstream from adding the pretreatment chemicals. Dosing of the pretreatment chemical to the water stream is controlled based on the monitored hydrophobic conditions. Thereby a membrane fouling in subsequent membrane filtration stage can be minimized.
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10.发明授权公开(公告)号：US11859347B2
公开(公告)日：2024-01-02
申请号：US16770627
申请日：2018-12-07
Applicant: Kemira Oyj
Inventor： Marko Kolari , Marjatta Piironen , Iiris Joensuu
CPC classification number: D21H21/36 , D21B1/32 , D21B1/345 , D21C9/008 , D21D5/28 , D21G9/0018 , D21H21/02 , G01N33/343
Abstract: A method is disclosed for predicting the microbial status of a paper or board making process and/or quality of the dry board or paper obtained from the process for controlling microbial status of a paper or board making process or quality of the dry board or paper obtained from the process. Surface level and duration of time in at least one storage tower or pulper are monitored and correlated with respective predetermined values for the tower or pulper in order to predict the risk of microbial activity.
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