SUSPENDED SOLIDS MEASUREMENT OF WASTEWATER

    公开(公告)号:US20210208067A1

    公开(公告)日:2021-07-08

    申请号:US17058618

    申请日:2019-06-27

    Applicant: HACH COMPANY

    Abstract: The invention provides a method and a system for measuring suspended solids in wastewater, including: introducing an aqueous sample into a measurement system, comprising at least one length of tubing; pumping, using a pump, the aqueous sample through the at least one length of tubing; and measuring, using at least one optical sensor, a quantity of suspended solids in the aqueous sample wherein at least one optical sensor is coupled to the length of tubing in a position to measure the quantity of suspended solids while the aqueous sample is located in the at least one length of tubing.

    TURBIDIMETER CLEANING
    62.
    发明申请

    公开(公告)号:US20210172861A1

    公开(公告)日:2021-06-10

    申请号:US17103487

    申请日:2020-11-24

    Applicant: Hach Company

    Abstract: An embodiment provides a method for cleaning a sample cell of a turbidimeter, including: introducing an apparatus comprising a cleaning component into the sample cell, wherein upon introduction of the apparatus into the sample cell a secondary flow path out of the sample cell is opened; engaging a functionality of the apparatus to clean the sample cell; and removing a plurality of particles from the sample cell via the secondary flow path. Other aspects are described and claimed.

    AQUEOUS SAMPLE MEASUREMENT VIA OXIDIZING METAL TO HIGHER VALENCE

    公开(公告)号:US20210116415A1

    公开(公告)日:2021-04-22

    申请号:US17253474

    申请日:2019-07-24

    Applicant: HACH COMPANY

    Abstract: An embodiment provides a method for measuring at least one characteristic of an aqueous sample, including: introducing an aqueous sample into a measurement device comprising one or more electrodes; oxidizing a transition metal to produce a higher valent metal by applying an electrical potential between an anode and a cathode of the measurement device; oxidizing, using the higher valent metal as a catalyst, a material within the aqueous sample; measuring a characteristic of the aqueous sample based upon the oxidized material, using a measurement device selected from the group consisting of: an electrochemical measurement device and an optical measurement device; and optimizing the electrical potential and at least one reagent delivered to the measurement device based on the measurement of the characteristic. Other aspects are described and claimed.

    METHOD FOR DETECTION OF TOTAL CHLORINE IN SEAWATER

    公开(公告)号:US20210102930A1

    公开(公告)日:2021-04-08

    申请号:US16592339

    申请日:2019-10-03

    Applicant: Hach Company

    Inventor: Amit Das

    Abstract: An embodiment provides a method for measuring total chlorine in a seawater sample, including: preparing a thiocarbamate-based indicator; introducing the thiocarbamate-based indicator to a seawater sample, wherein the seawater sample contains an amount of total chlorine; adding an additive to the seawater sample, wherein the additive accelerates the reaction rate between the thiocarbamate-based indicator and total chlorine and causes a change in fluorescence of the seawater sample; and measuring the amount of total chlorine in the seawater sample by measuring an intensity of the fluorescence. Other aspects are described and claimed.

    FLUORESCENT MEASUREMENT OF FILMING AMINES

    公开(公告)号:US20210018442A1

    公开(公告)日:2021-01-21

    申请号:US16512054

    申请日:2019-07-15

    Applicant: Hach Company

    Abstract: An embodiment provides a method for measuring amines in a solution, including: preparing an indicator-metal complex, wherein the indicator-metal complex comprises an indicator and a metal; introducing the indicator-metal complex to a solution, wherein the solution contains an amount of amine, wherein the amine activates the indicator-metal complex causing a change in fluorescence intensity of the indicator-metal complex; and measuring the amount of amine in the solution by measuring the change in fluorescence intensity of the indicator-metal complex. Other aspects are described and claimed.

    Digestion of lead(0) and subsequent colorimetric detection of lead(II)

    公开(公告)号:US10890574B2

    公开(公告)日:2021-01-12

    申请号:US16180384

    申请日:2018-11-05

    Applicant: Hach Company

    Abstract: An embodiment provides a method for measuring a concentration of lead(0) in an aqueous sample, including: introducing an aqueous sample to a reaction vessel; adding a copper(II) acetate material to the aqueous sample in the reaction vessel; chelating unreacted copper(II) material by introduction of an organosulfur compound to the aqueous sample in the reaction vessel; adding a colorimetric indicator to the aqueous sample in the reaction vessel; and measuring a concentration of lead(II) in the aqueous sample by measuring a colorimetric change of the aqueous sample caused by a reaction of lead(II) within the aqueous sample with the colorimetric indicator. Other aspects are described and claimed.

    ELECTROCHEMISTRY SENSOR HOUSING
    69.
    发明申请

    公开(公告)号:US20200378917A1

    公开(公告)日:2020-12-03

    申请号:US16424975

    申请日:2019-05-29

    Applicant: Hach Company

    Abstract: An embodiment provides an electrochemistry sensor, comprising; a sensor housing; an electrode, wherein the electrode is located within the sensor housing and is located within an orifice at the end of the sensor housing, thereby being exposed to outside the sensor housing and held within the sensor housing; and a rod coupled to an electrical connector, the rod being at least partially housed within the sensor housing, wherein the electrical connector contacts the electrode. Other aspects are described and claimed.

    LIQUID MIXING
    70.
    发明申请
    LIQUID MIXING 审中-公开

    公开(公告)号:US20200338560A1

    公开(公告)日:2020-10-29

    申请号:US16397259

    申请日:2019-04-29

    Applicant: Hach Company

    Abstract: An embodiment provides a device for mixing at least two reagent fluids, the mixed at least two reagent fluids being used for the measurement of a chemical attribute of a sample, including: a housing; at least two inlet ports, each to receive fluid in a premix state; an outlet port to dispense fluid in a postmix state; and a surface of a lumen for mixing, located within the housing, having a predetermined length, wherein the surface of the lumen is located between the at least two inlet ports and the outlet port, wherein the at least two inlet ports transition into the surface of the lumen, wherein the predetermined length is of a length allowing for sufficient mixing of the fluids received by the at least two inlet ports, wherein the surface of the lumen comprises at least one anti-siphoning element and a plurality of weirs to create a disturbance of a fluid contained therein, wherein the at least two fluids each comprise a reagent for a measurement of a chemical attribute of a sample. Other aspects are described and claimed.

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