公开(公告)号：US11953487B2

公开(公告)日：2024-04-09

申请号：US17841228

申请日：2022-06-15

申请人： Ecowater Systems LLC

发明人： Malcolm Kahn ,  Robert Astle ,  Jeffrey Zimmerman ,  Ravi Meruva

IPC分类号： G01N33/18 ,  C02F1/42 ,  G01N27/333

CPC分类号： G01N33/1853 ,  C02F1/42 ,  G01N27/333 ,  G01N33/1813 ,  G01N33/1893 ,  C02F2209/055 ,  C02F2303/16

摘要： An apparatus for determining total hardness in a fluid stream utilizing a first and second sodium ion selective electrode (ISE). The ion selective electrodes are in electrical communication with one another, having first and second reference electrodes, respectively, with a salt bridge therebetween, where the first ISE receives hard water and the second ISE receives soft water. A least one drain receives outflow from effluent fluid from the first and second sodium ISE sensors.

公开(公告)号：US11016074B2

公开(公告)日：2021-05-25

申请号：US16369925

申请日：2019-03-29

申请人： Ecowater Systems LLC

发明人： Malcolm Kahn ,  Robert Astle ,  Jeffrey Zimmerman ,  Ravi Meruva

IPC分类号： G01N33/18 ,  G01N27/333 ,  C02F1/42

摘要： An apparatus for determining total hardness in a fluid stream utilizing an ion exchange column in a monovalent cationic form having an inlet and an outlet, where one or more monovalent ion selective electrodes are positioned either at an inlet, outlet, or at both locations simultaneously. The monovalent cation selective electrodes are in electrical communication with one another, and in fluid communication with one or more valves incorporated within a fluid path in order to introduce feed water/softened water to the monovalent cation selective electrodes. Additionally, one blending valve may be incorporated in the ion exchange column to allow a fraction of the feed (hard) water to mix with a fraction of the softened water. In this manner, the blending valve may be utilized to adjust the hardness of the water at the output.

公开(公告)号：US20190302087A1

公开(公告)日：2019-10-03

申请号：US16369925

申请日：2019-03-29

申请人： Ecowater Systems LLC

发明人： Malcolm Kahn ,  Robert Astle ,  Jeffrey Zimmerman ,  Ravi Meruva

IPC分类号： G01N33/18 ,  G01N27/333

摘要： An apparatus for determining total hardness in a fluid stream utilizing an ion exchange column in a monovalent cationic form having an inlet and an outlet, where one or more monovalent ion selective electrodes are positioned either at an inlet, outlet, or at both locations simultaneously. The monovalent cation selective electrodes are in electrical communication with one another, and in fluid communication with one or more valves incorporated within a fluid path in order to introduce feed water/softened water to the monovalent cation selective electrodes. Additionally, one blending valve may be incorporated in the ion exchange column to allow a fraction of the feed (hard) water to mix with a fraction of the softened water. In this manner, the blending valve may be utilized to adjust the hardness of the water at the output.

公开(公告)号：US20220317105A1

公开(公告)日：2022-10-06

申请号：US17841228

申请日：2022-06-15

申请人： Ecowater Systems LLC

发明人： Malcolm Kahn ,  Robert Astle ,  Jeffrey Zimmerman ,  Ravi Meruva

IPC分类号： G01N33/18 ,  G01N27/333 ,  C02F1/42

摘要： An apparatus for determining total hardness in a fluid stream utilizing an ion exchange column in a monovalent cationic form having an inlet and an outlet, where one or more monovalent ion selective electrodes are positioned either at an inlet, outlet, or at both locations simultaneously. The monovalent cation selective electrodes are in electrical communication with one another, and in fluid communication with one or more valves incorporated within a fluid path in order to introduce feed water/softened water to the monovalent cation selective electrodes. Additionally, one blending valve may be incorporated in the ion exchange column to allow a fraction of the feed (hard) water to mix with a fraction of the softened water. In this manner, the blending valve may be utilized to adjust the hardness of the water at the output.

公开(公告)号：US20210239673A1

公开(公告)日：2021-08-05

申请号：US17235136

申请日：2021-04-20

申请人： Ecowater Systems LLC

发明人： Malcolm Kahn ,  Robert Astle ,  Jeffrey Zimmerman ,  Ravi Meruva

IPC分类号： G01N33/18 ,  G01N27/333 ,  C02F1/42

摘要： An apparatus for determining total hardness in a fluid stream utilizing an ion exchange column in a monovalent cationic form having an inlet and an outlet, where one or more monovalent ion selective electrodes are positioned either at an inlet, outlet, or at both locations simultaneously. The monovalent cation selective electrodes are in electrical communication with one another, and in fluid communication with one or more valves incorporated within a fluid path in order to introduce feed water/softened water to the monovalent cation selective electrodes. Additionally, one blending valve may be incorporated in the ion exchange column to allow a fraction of the feed (hard) water to mix with a fraction of the softened water. In this manner, the blending valve may be utilized to adjust the hardness of the water at the output.