Method and apparatus to monitor and control a water system

Patent metadata

Field	Value
Publication number	US-11053136-B2
Application number	US-201916243917-A
Country	US
Kind code	B2
Filing date	Jan 9, 2019
Priority date	Oct 12, 2017
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A system for providing treated water includes a water treatment unit including an inlet water quality probe, a worker bed, a probe to measure a parameter of water from the worker bed, a polisher bed connected downstream from the worker bed and having a probe to measure a parameter of water from the polisher bed, and a flow meter upstream of the worker bed or downstream of the polisher bed. A controller in communication with the flow meter and the probes is configured to receive data from same. A remote server in communication with the local water treatment unit is configured to receive data from the local water treatment unit. The controller or the server may determine a cumulative flow total, a billing cycle flow total, a current exchange flow total, a contaminant load, or a remaining capacity of the water treatment unit.

First claim

What is claimed is:

1. A method for providing treated water for a predetermined period of time, the method comprising:
treating water in a water treatment unit during the predetermined period of time to produce treated water;
determining a base charge for an expected volume of treated water to be provided within the predetermined period of time, the base charge determined, in part, by at least one water quality parameter of an influent water to be treated and a calculated frequency for servicing a component of the water treatment unit;
during the predetermined period of time, measuring a volume of the provided treated water utilizing a sensor positioned in the water treatment unit;
during the predetermined period of time, monitoring a parameter of water to be treated in the water treatment unit utilizing a water quality sensor positioned in the water treatment unit;
applying a fee adjustment credit to the base charge if the measured volume of the provided treated water is less than the expected volume of treated water to be provided; and
applying a fee adjustment surcharge to the base charge if the measured volume of the provided treated water is greater than the expected volume of treated water to be provided.

2. The method of claim 1 , further comprising predicting a remaining service life of the water treatment unit based on at least one of the measured volume of the provided treated water provided during the predetermined period of time and the monitored parameter, and wherein the monitored parameter relates to a conductivity of the water to be treated.

3. The method of claim 2 , further comprising scheduling service of the water treatment unit if the remaining service life is less than a service-initiating life of the water treatment unit.

4. The method of claim 1 , further comprising:
determining a cumulative volume of treated water provided by the water treatment unit; and
determining a remaining service life of the water treatment unit based at least on the cumulative volume of treated water and on the monitored parameter during the predetermined period of time.

5. The method of claim 1 , further comprising:
determining a cumulative volume of treated water provided by the water treatment unit; and
determining a remaining service life of the water treatment unit based at least on the cumulative volume of treated water and a treatment capacity of the water treatment unit.

6. The method of claim 1 , further comprising calculating an average of a value of the monitored parameter of the water to be treated during the predetermined period of time and utilizing the average value of the monitored parameter in the act of determining the fee adjustment.

7. The method of claim 1 , further comprising:
monitoring a parameter of the provided treated water; and
if the monitored parameter of the provided treated water is outside of a desired range, performing at least one of: generating an alarm, sending a notification to a user, and scheduling service of the water treatment unit.

8. The method of claim 1 , further comprising monitoring pressure across a pre filter of the water treatment unit and initiating service of the water treatment unit if the monitored pressure exceeds a predetermined differential pressure limit.

9. The method of claim 1 , further comprising making data indicative of one or more of: cumulative volume of water to be treated during the predetermined period of time, expected volume of water to be treated during the predetermined period of time, parameter of the water to be treated during the predetermined period of time, and expected value of the parameter of the water to be treated during the predetermined period of time available via a web portal.

10. The method of claim 1 , further comprising determining a schedule for service of the water treatment unit without input from a user of the treated water.

11. The method of claim 1 , further comprising transmitting data indicative of a volume of the water to be treated and data indicative of a value of the monitored parameter of the water to be treated to a central server remote from the water treatment unit.

12. The method of claim 1 , wherein monitoring the parameter of water to be treated comprises monitoring a conductivity of the water to be treated.

13. A method for providing treated water over a first predetermined period of time, the method comprising:
directing a first feedwater to be treated through a first water treatment unit to produce a first treated water, the first water treatment unit including ion exchange media;
during the first predetermined period of time, monitoring a water quality parameter of the first feedwater;
during the first predetermined period of time, monitoring at least one of a volume of the first feedwater directed through the water treatment unit and the first treated water;
transmitting to a server disposed remotely from the first water treatment unit, data indicative of at least one of the volume of the first feedwater and the volume of the first treated water, and data indicative of the monitored parameter;
determining a base fee for providing the first treated water during the first predetermined period of time based on an expected volume of the first feedwater to be treated during the first predetermined period of time and an expected value of the water quality parameter of the water to be treated during the first predetermined period of time, and determining a fee adjustment based on the base fee and a difference between the monitored volume of the first feedwater and the expected volume of the first feedwater to be treated and a difference between the monitored water quality parameter of the first feedwater and the expected value of the water quality parameter.

14. The method of claim 13 , further comprising:
directing a second feedwater to be treated through a second water treatment unit to produce a second treated water, the second water treatment unit disposed remotely from the first water treatment unit and including ion exchange media;
during a second predetermined period of time, monitoring a parameter of the second feedwater;
during the second predetermined period of time, monitoring at least one of a volume of the second feedwater directed through the second water treatment unit and a volume of the second treated water;
transmitting to the server disposed remotely from the second water treatment unit, data indicative of at least one of the volume of the second feedwater and the volume of the second treated water, and data indicative of the monitored parameter of the second feedwater;
determining a second base fee for providing the second treated water during the predetermined period of time based on at least one of an expected volume of the second feedwater to be treated and an expected value of the parameter of the second feedwater to be treated during the second predetermined period of time, and determining a second fee adjustment based on the second base fee and a difference between the monitored volume of the second feedwater and the expected volume of the second feedwater to be treated.

15. The method of claim 14 , wherein the monitored parameter of the second feedwater represents a conductivity of the second feedwater, and wherein determining the second fee adjustment is further based on a difference between the conductivity of the second feedwater and an expected conductivity of the second feedwater.

16. The method of claim 14 , further comprising determining a remaining treatment capacity of the second water treatment unit based on at least one of a cumulative

Assignees

• Evoqua Water Tech Llc

Inventors

• Branum Scott
• Hoefferle Erich

Classifications

• C02F2103/346

  from semiconductor processing, e.g. waste water from polishing of wafers · CPC title

• C02F2209/40

  Liquid flow rate · CPC title

• C02F2209/445

  Filter life · CPC title

• C02F2209/001

  Upstream control, i.e. monitoring for predictive control · CPC title

• G06Q50/06

  Energy or water supply · CPC title