Patent ID: 11964887
Assignee: UGSI SOLUTIONS, INC.
Field: Measurement (Instruments)
Classification: CPC C  G | IPC C  G

Claim 15:
16. A treatment delivery system for automatically controlling chloramine concentration in a body of water contained in a reservoir comprising:
a chemical dosing assembly;
a water sampling assembly configured to extract water sample from the body of water at different points in time;
one or more analyzers in fluid communication with the water sampling assembly and configured to determine at least total chlorine concentration;
a controller in operable communication with the one or more analyzers; and
one or more computer-readable storage mediums in operable communication with the controller and containing programming instructions that, when executed, cause the controller to:
a) determine residual chloramine concentration in a water sample obtained from the body of water;
b) determine 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 based on residual total chlorine concentrations of water samples obtained from the body of water; and
ii) an average rate of change in oxidation-reduction potential based on oxidation-reduction potentials of water samples obtained from the body of water and which is determined with an oxidation-reduction potential analyzer in fluid communication with the water sampling assembly; and

c) automatically engage a supply of ammonia and a supply of chlorine to add both ammonia and chlorine to the body of water when:
i) the average rate of change in total chlorine concentration is below a set rate of change in total chlorine concentration while chlorine is added to the body of water;
ii) the average rate of change in oxidation-reduction potential is above a set rate of change in oxidation-reduction potential while chlorine is added to the body of water; or
iii) the average rate of change in total chlorine concentration is below a set rate of change in total chlorine concentration and the average rate of change in oxidation-reduction potential is above a set rate of change in oxidation-reduction potential,

wherein steps a) through c) form at least a portion of a first water treatment cycle, and wherein the one or more computer-readable storage mediums in operable communication with the controller contain additional programming instructions that, when executed, cause the controller to conduct a subsequent water treatment cycle that is different from the first water treatment cycle.