Systems and Methods for Controlling the Feed Rate of Chemicals into a Body of Water

    公开(公告)号:US20210206672A1

    公开(公告)日:2021-07-08

    申请号:US17130817

    申请日:2020-12-22

    发明人: Robin Giguere

    IPC分类号: C02F1/76

    摘要: A method of controlling a feed rate of at least one chemical into a body of water includes: (a) dispensing one or more chemicals into a body of water with a chemical pumping device; (b) determining a chemical feed pump usage of at least one chemical into the body of water during a designated period of time; and (c) (i) automatically increasing chemical gain of the at least one chemical into the body of water if the pump usage is greater than a first pump usage set-point, or (ii) automatically decreasing chemical gain of the at least one chemical into the body of water if the pump usage is less than a second pump usage set-point. A system for using the method is also included.

    Methods and System for Evaluating and Maintaining Disinfectant Levels in a Potable Water Supply

    公开(公告)号:US20220169532A1

    公开(公告)日:2022-06-02

    申请号:US17673199

    申请日:2022-02-16

    摘要: A method of determining a disinfectant composition of a municipal water supply from a water sample that includes: (a) obtaining a water sample from a water source at a sampling location; (b) adding a chlorine-containing material to the water sample in the presence of an oxidation reduction potential (ORP) measurement device; (c) generating a plurality of ORP measurements during addition of the chlorine-containing material to the water sample; (d) estimating a concentration of one or more of free ammonia, fully combined ammonia, monochloramine, or a mixture of dichloramine and trichloramine in the water sample in which the estimation is derived from the relationship between the added chlorine material and the plurality of ORP measurements; and (e) determining a disinfectant composition of the water source at the water sampling location from the concentration calculation. A method of determining free ammonia composition is also included.

    Systems and Methods for Removing Volatile Compounds From Water-Storage Tanks

    公开(公告)号:US20220081321A9

    公开(公告)日:2022-03-17

    申请号:US16827884

    申请日:2020-03-24

    IPC分类号: C02F1/20 B01D19/00 E03B11/08

    摘要: A system for reducing an amount of volatile organic compounds which includes: a water-storage tank having a tank containing water, a roof positioned over the tank, and a headspace region formed between the roof and a surface of the water contained in the tank; an air exchange system positioned at least partially in the headspace region that is configured to exchange air exterior to the tank with air inside the tank; and a water conveyance device located at least partially in the water of the water-storage tank and which is configured to convey water in a manner that produces a surface flow velocity. A method reducing an amount of volatile organic compounds is also included.

    Chemical control systems and methods for controlling disinfectants

    公开(公告)号:US11964887B2

    公开(公告)日:2024-04-23

    申请号:US17075794

    申请日:2020-10-21

    发明人: Robin Giguere

    摘要: A method of automatically controlling chloramine concentration in a body of water contained in a reservoir includes: (a) determining residual chloramine concentration in a water sample obtained from the body of water; (b) determining at least one of the following when the residual chloramine concentration is below a predetermined target chloramine concentration level: (i) an average rate of change in total chlorine concentration; and (ii) an average rate of change in oxidation-reduction potential; and (c) automatically engaging a supply of ammonia and a supply of chlorine to add both ammonia and chlorine to the body of water at a weight ratio of chlorine to ammonia of 5:1 or less when the average rate of change in total chlorine concentration is below a set rate of change and/or the average rate of change in oxidation-reduction potential is above a set rate of change.

    Systems and Methods for Removing Volatile Compounds from Water-Storage Tanks

    公开(公告)号:US20220274851A1

    公开(公告)日:2022-09-01

    申请号:US17744854

    申请日:2022-05-16

    IPC分类号: C02F1/20 B01D19/00 E03B11/08

    摘要: A system for reducing an amount of volatile organic compounds which includes: a water-storage tank having a tank containing water, a roof positioned over the tank, and a headspace region formed between the roof and a surface of the water contained in the tank; an air exchange system positioned at least partially in the headspace region that is configured to exchange air exterior to the tank with air inside the tank; and a water conveyance device located at least partially in the water of the water-storage tank and which is configured to convey water in a manner that produces a surface flow velocity. A method reducing an amount of volatile organic compounds is also included.

    Methods and system for evaluating and maintaining disinfectant levels in a potable water supply

    公开(公告)号:US11286176B2

    公开(公告)日:2022-03-29

    申请号:US16310671

    申请日:2017-06-30

    摘要: A method of determining a disinfectant composition of a municipal water supply from a water sample that includes: (a) obtaining a water sample from a water source at a sampling location; (b) adding a chlorine-containing material to the water sample in the presence of an oxidation reduction potential (ORP) measurement device; (c) generating a plurality of ORP measurements during addition of the chlorine-containing material to the water sample; (d) estimating a concentration of one or more of free ammonia, fully combined ammonia, monochloramine, or a mixture of dichloramine and trichloramine in the water sample in which the estimation is derived from the relationship between the added chlorine material and the plurality of ORP measurements; and (e) determining a disinfectant composition of the water source at the water sampling location from the concentration calculation. A method of determining free ammonia composition is also included.

    Chemical Control Systems and Methods for Controlling Disinfectants

    公开(公告)号:US20210032135A1

    公开(公告)日:2021-02-04

    申请号:US17075794

    申请日:2020-10-21

    发明人: Robin Giguere

    摘要: A method of automatically controlling chloramine concentration in a body of water contained in a reservoir includes: (a) determining residual chloramine concentration in a water sample obtained from the body of water; (b) determining at least one of the following when the residual chloramine concentration is below a predetermined target chloramine concentration level: (i) an average rate of change in total chlorine concentration; and (ii) an average rate of change in oxidation-reduction potential; and (c) automatically engaging a supply of ammonia and a supply of chlorine to add both ammonia and chlorine to the body of water at a weight ratio of chlorine to ammonia of 5:1 or less when the average rate of change in total chlorine concentration is below a set rate of change and/or the average rate of change in oxidation-reduction potential is above a set rate of change.