Patent ID: 11932562
Assignee: UGSI SOLUTIONS, INC.
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 14:
15. A treatment delivery system for automatically controlling chloramine concentration in a body of water contained in a reservoir comprising:
a chemical dosing assembly at least partially submerged in the body of water;
a water sampling assembly configured to extract at least a first and second water sample from the body of water at different points in time;
an analyzer in fluid communication with the water sampling assembly and configured to determine residual chloramine concentration in the first and second water samples;
a controller in operable communication with the analyzer; 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 whether the residual chloramine concentration in the first water sample obtained from the body of water is below a pre-determined residual chloramine concentration set-point or below a first chloramine concentration percentage of a pre-determined residual chloramine concentration set-point;
b) engage the chemical dosing assembly to add chlorine to the body of water when:
i) the residual chloramine concentration in the first water sample is determined to be below the pre-determined residual chloramine concentration set-point; or
ii) the residual chloramine concentration in the first water sample is determined to be below the first chloramine concentration percentage of the pre-determined residual chloramine concentration set-point;

c) determine whether the residual chloramine concentration in the second water sample obtained from the body of water after step b) is below the residual chloramine concentration in the first water sample or below a second chloramine concentration percentage of the pre-determined residual chloramine concentration set-point; and
d) engage a supply of chlorine and a supply of ammonia to add both ammonia and chlorine to the body of water if:
i) the residual chloramine concentration in the second water sample is determined to be below the residual chloramine concentration in the first water sample; or
ii) the residual chloramine concentration in the second water sample is determined to be below the second chloramine concentration percentage of the pre-determined residual chloramine concentration set-point,

wherein steps a) through d) 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, and
wherein the programming instructions comprise algorithm X or algorithm XI for causing the controller to add chlorine and ammonia in the subsequent water treatment cycle:
Algorithm X: y′<x′=add chlorine and ammonia, where y′ is the residual chloramine concentration determined in the first water sample of the subsequent treatment cycle and x′ is the residual chloramine concentration set-point; or
Algorithm XI: y′<[(a′)(x′)]=add chlorine and ammonia, where y′ is the residual chloramine concentration determined in the first water sample of the subsequent treatment cycle, a′ is a percentage selected within a range of 99% to 80%, and x′ is the residual chloramine concentration set-point.