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101.发明公开公开(公告)号：US20230202889A1
公开(公告)日：2023-06-29
申请号：US18087375
申请日：2022-12-22
Applicant: HACH COMPANY
Inventor： Vishnu RAJASEKHARAN , Dan KROLL , Matthew GRAY
CPC classification number: C02F3/006 , C02F3/30 , C02F2209/34
Abstract: Methods and systems for controlling nitrous oxide production in a wastewater treatment facility in which wastewater is treated with microbes in a biological reactor. Nitrous oxide production can be controlled by determining an amount of two or more nutrients in the biological reactor, calculating a value that represents a comparison of the values, comparing the calculated value to a threshold value, and optionally taking a corrective action to reduce nitrous oxide production based on the comparison. In one aspect, nitrous oxide production can be controlled by determining an amount of ammonium in the biological reactor, determining an amount of a nitrogen compound that can include nitrite, nitrate, and/or hydroxylamine, calculating a value that compares the amount of ammonium to the amount of the nitrogen compound, and taking a corrective action that changes a system parameter to reduce the nitrous oxide production if the calculated value surpasses a threshold limit.
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公开(公告)号：US20230122443A1
公开(公告)日：2023-04-20
申请号：US18081996
申请日：2022-12-15
Applicant: HACH COMPANY
Inventor： Brian Alan HARMON , Gregory James LIPINSKI , Joseph Rockstan WILLIAMS , Theophilus Brian MOONEY , Timothy A. HIGGINS , Dan Jonathan KROLL , Vishnu RAJASEKHARAN , Corey Alan SALZER
Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.
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公开(公告)号：US20230072210A1
公开(公告)日：2023-03-09
申请号：US17986389
申请日：2022-11-14
Applicant: Hach Company
Inventor： Amit Das
Abstract: An embodiment provides a method for measuring total chlorine in a solution, including: preparing a thiocarbamate indicator; introducing the thiocarbamate indicator to a solution, wherein the solution contains an amount of monochloramine; adding an additive to the solution, wherein the additive accelerates the reaction rate between the thiocarbamate indicator and monochloramine and causes a change in fluorescence of the solution; and measuring the amount of monochloramine in the solution by measuring an intensity of the fluorescence. Other aspects are described and claimed.
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公开(公告)号：US20220334059A1
公开(公告)日：2022-10-20
申请号：US17233942
申请日：2021-04-19
Applicant: Hach Company
Inventor： Amit Das
IPC: G01N21/64
Abstract: An embodiment provides a method for measuring mercury in a solution, including: preparing a thiocarbamate-based indicator; introducing the thiocarbamate-based indicator to a solution, wherein the solution contains an amount of mercury and the introducing causes a change in fluorescence of the solution; and measuring the amount of mercury in the solution by measuring a change in intensity of the fluorescence. Other aspects are described and claimed.
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公开(公告)号：US11422093B2
公开(公告)日：2022-08-23
申请号：US16433752
申请日：2019-06-06
Applicant: Hach Company
Abstract: An embodiment provides a method for measuring free chlorine in a solution, including: preparing a thiocarbamate-based indicator; introducing the thiocarbamate-based indicator to a solution, wherein the solution contains an amount of free chlorine and the introducing causes a change in fluorescence of the solution; and measuring the amount of free chlorine in the solution by measuring a change in intensity of the fluorescence. Other aspects are described and claimed.
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Patent Agency Ranking
公开(公告)号：US20220263740A1
公开(公告)日：2022-08-18
申请号：US17174945
申请日：2021-02-12
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Russell Young
Abstract: An embodiment provides a method for real-time management of device maintenance utilizing quality metrics defined based upon inputs of the device, the method including: receiving inputs corresponding to a particular device, wherein the particular device provides measurements of a parameter of a fluid; generating, from the inputs, quality metrics for and unique to the particular device; monitoring the particular device while the particular device is deployed, wherein the monitoring occurs in view of the quality metrics; and triggering, responsive to detecting information corresponding to the particular device is violating at least one of the quality metrics, a notification to a user to perform an action corresponding to the particular device.
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公开(公告)号：US20220261721A1
公开(公告)日：2022-08-18
申请号：US17174888
申请日：2021-02-12
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Russell Young
Abstract: An embodiment provides a method, including: receiving, at an electronic device, a data set comprising measured values for a plurality of parameters associated with an upcoming operational process associated with water quality, wherein each of the plurality of parameters is selected from the group consisting of: energy, chemicals, labor, equipment, and a process efficiency value; determining, by at least comparing the measured values against each other, a cost benefit index associated with the upcoming operational process; and providing, based on the determined cost benefit index, a recommendation to maximize a benefit derived from the upcoming operational process based upon a cost to complete the upcoming operational process. Other aspects are described and claimed.
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公开(公告)号：US20220260547A1
公开(公告)日：2022-08-18
申请号：US17174851
申请日：2021-02-12
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Russell Young
Abstract: An embodiment provides a method of forecasting water quality deterioration in a water distribution system, including: receiving, at an electronic device, a data set comprising measured values of a plurality of components within the water distribution system; determining, based upon algorithmic analysis of the measured values, a water quality index; and providing, based on the determined water quality index, a recommendation to mitigate water quality deterioration in the water distribution system. Other aspects are described and claimed.
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公开(公告)号：US20220214306A1
公开(公告)日：2022-07-07
申请号：US17143700
申请日：2021-01-07
Applicant: Hach Company
Inventor： Corey Alan Salzer
IPC: G01N27/416
Abstract: An embodiment provides a method for measuring an alkalinity of an aqueous sample, including: introducing an aqueous sample to a voltammetric pH electrode; holding the potential of a voltammetric pH electrode at a pH end point potential; applying a voltage step waveform comprising at least one potential pulse to the voltammetric pH electrode; titrating the aqueous sample; and measuring a current output resulting from the voltage step waveform, wherein the measuring comprises square wave amperometry. Other aspects are described and claimed.
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公开(公告)号：US20220187197A1
公开(公告)日：2022-06-16
申请号：US17551973
申请日：2021-12-15
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Dan Jonathan Kroll
Abstract: An embodiment provides a method for digesting at least one analyte of an aqueous sample, including: introducing an aqueous sample comprising at least one analyte into a digestion device comprising one or more carbon substituted material electrodes; digesting the at least one analyte by applying an electrical potential between an anode and a cathode of the digestion device, wherein the digesting comprises a step-wise disintegration; measuring the at least one analyte of the aqueous sample from the digested material, using a measurement device selected from the group consisting of: an electrochemical device and an optical measurement device; and modifying the electrical potential based upon the measurement of the at least one analyte. Other aspects are described and claimed.
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