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公开(公告)号：US20170003261A1
公开(公告)日：2017-01-05
申请号：US15200728
申请日：2016-07-01
申请人： Ecolab USA Inc.
CPC分类号： G01N33/1853 , C09B11/24 , C09B67/0083 , G01N21/274 , G01N21/278 , G01N21/6428 , G01N21/643 , G01N21/645 , G01N33/1813 , G01N2201/127
摘要： Disclosed are methods that can be used to automatically calibrate a fluorescence-measuring instrument capable of continuously measuring the concentration of hardness in process water. The calibration method is used to compensate for drift of instrument and equipment, changes of operational conditions, and contamination of reagents and calibration standards. Calibration of the fluorescence-measuring instrument using the present calibration method improves both accuracy and repeatability for subsequent hardness concentration measurements.
摘要翻译： 公开了可用于自动校准能够连续测量工艺水中硬度浓度的荧光测量仪器的方法。 校准方法用于补偿仪器和设备的漂移，操作条件的变化以及试剂污染和校准标准。 使用本校准方法校准荧光测量仪器可以提高后续硬度浓度测量的精度和重复性。
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2.发明授权公开(公告)号：US12097467B2
公开(公告)日：2024-09-24
申请号：US17576984
申请日：2022-01-16
申请人： Ecolab USA Inc.
发明人： Seong-Hoon Yoon , Hui Li , Craig Myers , Daniel Meier , Donald Johnson
IPC分类号： B01D65/02 , C02F1/44 , C02F103/02 , G01N21/78 , G01N33/18
CPC分类号： B01D65/02 , C02F1/44 , G01N21/78 , G01N33/18 , B01D2321/10 , B01D2321/16 , B01D2321/185 , C02F2103/023 , C02F2209/055 , C02F2209/38 , C02F2209/40 , C02F2303/16
摘要： Membrane filtration systems can be used to purify liquid streams for downstream use. In practice, foulant can build-up on the surface of a membrane within a filtration system over time. The effectiveness of the filtration system will deteriorate if the fouling is not properly controlled. In some examples, a method of controlling membrane fouling in a pressurized membrane system involves supplying a feed stream that is predominately air mixed with water to the membrane. In other words, the feed stream a greater volume of air than water, even though it is the water being processed by the membrane. Supplying the pressurized membrane system with a feed stream that contains a greater volume of air than water can yield significantly better performance than supplying the membrane with a feed stream that contains a greater volume of water than air.
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公开(公告)号：US08956875B2
公开(公告)日：2015-02-17
申请号：US13804655
申请日：2013-03-14
申请人： Ecolab USA Inc.
发明人： Arthur J. Kahaian , Alexandra Knoth , Hui Li , Rodney H. Banks , Joe L. Schwartz , Sascha J. Welz
CPC分类号： G01N21/643 , Y10T436/11 , Y10T436/115831 , Y10T436/12
摘要： Provided are automated methods for measuring soluble magnesium concentration in water using fluorescence. The methods employ the use of a pH-buffered liquid and a magnesium coordinating fluorescing reagent. In certain embodiments, the methods may further employ measuring total hardness concentration of the water by displacing any soluble calcium with soluble magnesium and then re-measuring the soluble magnesium concentration. Optionally, the soluble calcium concentration can be determined by subtracting the measured soluble magnesium concentration from the measured total hardness concentration.
摘要翻译： 提供了使用荧光测量水中可溶性镁浓度的自动化方法。 该方法采用pH缓冲液体和配位荧光的配位剂。 在某些实施方案中，所述方法还可以通过用可溶性镁置换任何可溶性钙，然后重新测量可溶性镁浓度，来进一步测量水的总硬度浓度。 任选地，可溶性钙浓度可以通过从测量的总硬度浓度中减去测得的可溶性镁浓度来确定。
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公开(公告)号：US20140273243A1
公开(公告)日：2014-09-18
申请号：US13804655
申请日：2013-03-14
申请人： ECOLAB USA INC.
发明人： Arthur J. Kahaian , Alexandra Knoth , Hui Li , Rodney H. Banks , Joe L. Schwartz , Sascha J. Welz
IPC分类号： G01N21/64
CPC分类号： G01N21/643 , Y10T436/11 , Y10T436/115831 , Y10T436/12
摘要： Provided are automated methods for measuring soluble magnesium concentration in water using fluorescence. The methods employ the use of a pH-buffered liquid and a magnesium coordinating fluorescing reagent. In certain embodiments, the methods may further employ measuring total hardness concentration of the water by displacing any soluble calcium with soluble magnesium and then re-measuring the soluble magnesium concentration. Optionally, the soluble calcium concentration can be determined by subtracting the measured soluble magnesium concentration from the measured total hardness concentration.
摘要翻译： 提供了使用荧光测量水中可溶性镁浓度的自动化方法。 该方法采用pH缓冲液体和配位荧光的配位剂。 在某些实施方案中，所述方法还可以通过用可溶性镁置换任何可溶性钙，然后重新测量可溶性镁浓度，来进一步测量水的总硬度浓度。 任选地，可溶性钙浓度可以通过从测量的总硬度浓度中减去测得的可溶性镁浓度来确定。
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公开(公告)号：US20240125753A1
公开(公告)日：2024-04-18
申请号：US18484097
申请日：2023-10-10
申请人： Ecolab USA Inc.
发明人： Hui Li , Bingzhi Chen , Ashish Dhawan
CPC分类号： G01N33/1853 , C02F1/68 , G01N21/6428 , C02F2209/06 , G01N2021/6439
摘要： An indicator composition can be used to measure calcium hardness within a sample of water from a process water system. The indicator composition can include a calcium indicator, a range extender, and a buffer. The indicator composition can accurately measure calcium concentrations within the sample of water at low, moderate, and high calcium levels, including at calcium concentrations of greater than 50 ppm. The indicator composition can measure calcium hardness without the use of masking agents at a pH of less than about 7.
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6.发明申请公开(公告)号：US20220226782A1
公开(公告)日：2022-07-21
申请号：US17576984
申请日：2022-01-16
申请人： Ecolab USA Inc.
发明人： Seong-Hoon Yoon , Hui Li , Craig Myers , Daniel Meier , Donald Johnson
摘要： Membrane filtration systems can be used to purify liquid streams for downstream use. In practice, foulant can build-up on the surface of a membrane within a filtration system over time. The effectiveness of the filtration system will deteriorate if the fouling is not properly controlled. In some examples, a method of controlling membrane fouling in a pressurized membrane system involves supplying a feed stream that is predominately air mixed with water to the membrane. In other words, the feed stream a greater volume of air than water, even though it is the water being processed by the membrane. Supplying the pressurized membrane system with a feed stream that contains a greater volume of air than water can yield significantly better performance than supplying the membrane with a feed stream that contains a greater volume of water than air.
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7.发明申请Method of Obtaining or Maintaining Optical Transmittance into Deaerated Liquid 审中-公开获取或维持透光率到脱气液体中的方法公开(公告)号：US20160202508A1
公开(公告)日：2016-07-14
申请号：US14592219
申请日：2015-01-08
申请人： Ecolab USA Inc.
摘要： A method of obtaining or maintaining optical transference into deaerated liquid in contact with a light transference medium is disclosed. The method comprises applying ultrasonic energy at a wavelength (λ) into deaerated liquid in contact with a light transference medium. The ultrasonic energy at wavelength (λ) originates at a distance (d) from an optical signal transmitted into the light transference medium. The distance (d) may be defined by a formula based on the wavelength (λ) of the ultrasonic energy.
摘要翻译： 公开了一种获得或保持与光传输介质接触的脱气液体中的光学转移的方法。 该方法包括将波长（λ）的超声能量施加到与光转移介质接触的脱气液体中。 波长（λ）的超声波能量源自传输到光传输介质的光信号的距离（d）。 距离（d）可以通过基于超声能量的波长（λ）的公式来定义。
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公开(公告)号：US20210404950A1
公开(公告)日：2021-12-30
申请号：US17363657
申请日：2021-06-30
申请人： Ecolab USA Inc.
发明人： Hui Li , Bingzhi Chen , Brandon Davis
摘要： An optical sensor may be used to measure the concentration of calcium in a water sample, such as a water sample obtained from industrial process water system like a cooling tower system, a boiler water system, or a waste water system. To measure the concentration of calcium, an indicator or reagent may be added to the water sample to form a complex that absorbs light. The absorbance profile of the complex may be non-linear over a range of calcium concentrations. However, the absorbance profile can be linearized to provide calibration coefficients that are subsequently used to determine the concentration of calcium in samples having unknown calcium concentrations. The linearization of the absorbance profile can allow the optical sensor to be calibrated using two solutions. This can reduce the complexity and cost of calibrating the optical sensor, which may otherwise require at least three calibration solutions to capture the non-linear profile of the absorbance curve.
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公开(公告)号：US10317385B2
公开(公告)日：2019-06-11
申请号：US15200728
申请日：2016-07-01
申请人： Ecolab USA Inc.
摘要： Disclosed are methods that can be used to automatically calibrate a fluorescence-measuring instrument capable of continuously measuring the concentration of hardness in process water. The calibration method is used to compensate for drift of instrument and equipment, changes of operational conditions, and contamination of reagents and calibration standards. Calibration of the fluorescence-measuring instrument using the present calibration method improves both accuracy and repeatability for subsequent hardness concentration measurements.
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公开(公告)号：US10197824B2
公开(公告)日：2019-02-05
申请号：US14592219
申请日：2015-01-08
申请人： Ecolab USA Inc.
摘要： A method of obtaining or maintaining optical transference into deaerated liquid in contact with a light transference medium is disclosed. The method comprises applying ultrasonic energy at a wavelength (λ) into deaerated liquid in contact with a light transference medium. The ultrasonic energy at wavelength (λ) originates at a distance (d) from an optical signal transmitted into the light transference medium. The distance (d) may be defined by a formula based on the wavelength (λ) of the ultrasonic energy.
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