1. Field of the Invention
The present invention relates to a water treatment system; and more particularly relates to a water treatment system for providing remote, mobile or Internet awareness of the quality of water being monitored.
2. Brief Description of Related Art
The market has many commercially available devices capable of measuring pH and oxidation levels for contained water, for uses in applications such as aquariums and/or aquaculture. These devices measure pH and oxidation levels and manual thresholds can be defined by the user. The user then manually adjusts the quality of the water.
The shortcoming of what is currently commercially available is the scientific operation and set-up of the device, namely the thresholds are defined by units of measurement (pH scale or mV etc.) of which the typical household consumer is not aware. Based on this, the user must then make changes to adjust water quality manually, which entails contact with water treatment chemicals.
By way of example, known commercially available products include Milwaukee Instruments pH & ORP Controller, MC125, having a professional pH/ORP controller that is characterized by the following:
There is a need in the industry for a product that provides a better way of measuring pH and oxidation (ORP) levels for contained water by a user.
In summary, the present invention provides a new and unique self contained, automatic water quality monitoring and treatment system or technique having one or more of the following features:
Packaging a measuring device into an awareness based “percentage of change” unit, which could be displayed in a visual rate of change (i.e., relative) vs. discrete measurement; Alarm awareness monitoring may be, but not limited to, wireless for mobile or internet awareness;
Utilizing remote display units to be placed at convenient areas to alert the user of water quality issues;
Adding module component to the overall device that could automatically adjust water treatment appliance(s), e.g., a chlorinator, water softener, etc.;
Displaying of “water health/water quality” would be relative to quality of lab tested water sample as baseline; remote awareness (e.g., via LAN, Wired, Internet/mobile monitoring, etc.) and would have a positive emotional effect as well as the device would respond to “poor water quality” if integrated with water conditioning appliances and/or treatment modules that could receive response from the measuring device.
By way of example, and according to the present invention, the basic system may include two basic components, including a monitoring section and a treatment section.
The monitoring or control unit or section may include, or take the form of, some combination of a Water Quality Interface Control Module (WQICM), an output module, and a signal response for water treatment controller. By way of example, the WQICM may be installed in a basement or other area of a building, e.g., in-line with incoming water lines to the building. The WQICM may be configured with a user interface for providing settings that would be provided by a user, as well as a display for displaying the quality of the water being monitored. The user would provide setting via the user interface, which may include a pre-set percentage of change or rate in order to monitor the water quality and, if chosen, an alert setting by which the user through one or more remotely mounted display units or user interfaces may be informed of the alert. Whether the remote user interfaces are utilized or not, the WQICM may activate an automatic in-line water treatment module, e.g., via the signal response for water treatment controller, which may apply one or more treatments to the incoming water. The automatic in-line water treatment module may be configured to provide, and the WQICM may be configured to receive, a status signal containing information about the status of one or more tanks containing one or more treatment materials, and alerts the user when the treatment tanks are low or empty.
By way of example, the pH vs. ORP may be measured, as follows:
By way of example, the response of the system may include the following:
In operation, the pH vs. ORP would measure change (delta), which may be used consistent with the following:
The treatment section may be implemented, as follows:
The treatment section may include an in-line water sensing module and the in-line water treatment module.
The in-line water sensing module may contains sensors to measure and analyze the water quality. The water may be analyzed and the results may be transmitted back to the WQICM for implementing treatment action.
The in-line water treatment module may include inputs for receiving treatment signaling from the signal response for water treatment controller and inputs from various materials for treatment. Once the WQICM reviews the results of the monitoring, the corresponding signal may be sent out via the signal response module to the in-line water treatment module and the proper treatment materials may be administered to the water as specified by the settings on the WQICM.
According to some embodiments, the present invention may be implemented in the form of apparatus, e.g., featuring a signal processor configured at least to:
The signal processor may also be configured to provide the corresponding signaling for remote awareness, including via wireless signaling, either for displaying on a display of a remote user interface the percentage of change between the baseline test and the subsequent test, or controlling the treatment of the water being monitored, or both.
According to some embodiment of the present invention, the apparatus may also include one or more of the following features:
The baseline test may be based upon lab tested water (e.g., by a third party), or may be conducted at an initial installation, e.g., by the system according to the present invention.
The signal processor may be configured to make the determination at a pre-set rate, including where the pre-set rate is either a user-defined pre-set rate or is a factory pre-set rate.
The apparatus may include, or take the form of, an awareness-based “percentage of change” unit, e.g., having the signal processor in combination with a display configured to provide a visual rate of percentage change indication versus a discrete measurement, or an alert module for providing an audio or visual alert based upon an alert setting, or both the display and the alert module.
The apparatus may include one or more remote user interfaces or display units, e.g., having a corresponding signal processor in combination with a display, the corresponding signal processor configured to receive the corresponding signaling, and the display configured to display a visual rate of percentage change indication versus a discrete measurement, based upon the corresponding signaling received.
The apparatus may include an in-line sensing module, e.g., having one or more in-line sensors configured to sense the pH and oxidation (e.g., ORP) levels of water to be monitored as part of the baseline test or the subsequent test, and provide sensed signaling containing information about the pH and ORP levels of water to be monitored, including where the sensed signaling is provided to a signal response module for a water treatment controller.
The apparatus may include an in-line water treatment module configured to receive the water being monitored; and the in-line water treatment module may include one or more treatment input control modules configured to receive the corresponding signaling in the form of treatment signaling, and provide treatment material to the in-line water treatment module to change the quality of water, e.g., including where the treatment material changes the pH and ORP levels of water by adjusting the chlorination or softness of the water being monitored.
The awareness-based “percentage of change” unit may be configured to react to changes in contaminants in the water, including primary contaminants that take the form of iron, alkaline or acid reactives (pH), chlorine or nitrates. The awareness-based “percentage of change” unit may be also configured to react to changes in contaminants in the water, including secondary contaminants that take the form of carbon dioxide, oxygen, hydrogen sulfide or arsenic.
The drawing, which are not necessarily drawn to scale, includes the following Figures:
In summary, the present invention uses ORP and pH sensors to monitor general water quality of primary and secondary contaminants continuously. By measuring trends in oxidative and reductive properties of water, as well as pH, it is possible to determine when water quality has been compromised. This cost effective alternative does not require a number of dedicated probes to determine each contaminant level. Other than Nitrates, it is shown that each primary contaminant listed below will have effect on the ORP of the water or the pH.
The present invention provides a new and unique technique that allows for the feasibility of using an ORP and pH combination monitor/controller as a cost effective device for monitoring and adjusting residential water quality. The technique provides a user with general feedback of its system's water quality. The technique also provides in line monitoring of ORP and pH in real time and include an alarm/control system that is triggered when the value varies outside a user determined set point, by way of example. Finally, the technique will offer generalized feedback on a variety of contaminants to reduce complexity and capital cost.
The technique may be configured to allow for a reaction to changes in contaminants of the following types:
These contaminants are understood to be selected based on the severity of threat they pose to human health and infrastructure as well as common listings reported by the Water Systems Council. The technique is understood to be configured to react to changes in all primary contaminants. In contrast, the monitoring of secondary contaminants, which are not deemed to be absolutely necessary, may be added to the implementation (and underlying success) of the technique if a response may be found.
As a person skilled in the art would appreciate, the present invention is based upon an understanding of oxidation reduction potential (ORP) and pH theory, consistent with that which follows:
In order to measure the general quality of water, it is understood that ORP must be measured with pH due to their heavy dependence with one another. pH is the logarithmic measure of hydrogen ion (H+) concentration within a solution. This means that lower pH levels mean high H+ concentrations, indicating that the solution is more acidic. In contrast, higher pH values indicates high levels of hydroxide concentration (OH−), or a more basic solution. In most drinking water applications, the standard for pH ranges is understood to be from 6.5 to 8.5.
Oxidation Reduction Potential (ORP) is the potential for the solution to either oxidize or reduce. ORP is measured in millivolts (mV) based on the standard electrode potential, typically to platinum. If the returned value is positive, this is indicative of an oxidizing agent. If the ORP returns negative, this indicates that the water exhibits the characteristics of a reducing agent. It should be seen that pH will have an inverse effect on the outcome of ORP. With decreased pH, ORP will increase and with increased pH, ORP will decrease. Therefore, pH and ORP will need to be measured simultaneously in order to overcome measurement errors due to this dependence. A recommended range for ORP is +100 to +400 mV. This range is determined based on the thermodynamic properties of common chemical couples to react in water at a pH of 7.
As indicated by
Additionally, Chlorine directly affects ORP levels indicating the ability to monitor chlorine contamination:
According to the EPA, drinking water standards for chlorine should not exceed 0.8 mg/L.
Additionally, Chlorine can be generally monitored using pH and ORP using the graph shown in
In terms of Iron, the following was determined when Iron)(Fe0 was dosed into an aqueous solution. The following results indicate the effects Ferrous iron (Fe2+) will have on ORP, pH and DO (Water Research)
It should be noted that CO2 was additionally introduced into this system. Based on the results for 0 g/L Fe0, it can be observed that CO2 bubbling caused dramatic changes to pH and very little to no influence on system ORP. Therefore, the dramatic changes in ORP found in
For cases where insoluble Ferric Iron may be present, either from well water or pipe corrosion, ORP and pH sensors would not be able to directly indicate levels of concentration. In this case, water would turn brown from the tap offering a sufficient visual indication. On the other hand, ORP and pH can be used as a potential indicator of corrosion favored water quality. In cases where ORP is high (above 500 mV) and pH low (below 6.5), it is very likely that iron material in the water system could corrode at a high rate causing an increase in ferric iron concentration.
With regard to Nitrates: Nitrates are a part of the Nitrogen cycle and therefore can be determined whether the potential for Nitrates may be present by low ORP values indicating Ammonia or Nitrites. This is more difficult to monitor being that Nitrates are often formed at ORP's greater than 0 mV. Research into this trend is needed
Other secondary contaminants listed above are found to have the following effects:
Major chemical and biological processes found to have a significant effect on overall water quality have also been found to have an effect on system pH and ORP.
Since recommended ranges for drinking water reach from 6.5 to 7.5 pH and +100 to +400 mV for ORP, the area representing ideal drinking water quality is represented by the long dashed region. A line has been included to indicate the exchange from soluble ferrous iron (Fe2+) and insoluble ferric iron (Fe3+) (Tim Apps). Indicators of approximate oxygen levels are also included.
In particular,
The self contained, automatic water quality monitoring and treatment system 10 may be configured to operate, as follows:
The in-line sensors 22a, 22b, 22c, 22d may be configured to sense the pH and oxidation (e.g., ORP) levels of water to be monitored, and provide sensed signaling containing information about the pH and oxidation levels of water to be monitored. The sensed signaling may be provided along line 20a to the signal response for water treatment controller 16. In-line sensors like elements 22a, 22b, 22c, 22d for sensing and providing associated signaling containing information about the associated sensing are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind of in-line sensor either now known or later developed in the future.
The water quality interface control module 12 may include a user interface 12a for receiving settings by a user and also include a display 12b for providing visual information about the quality of the water being monitored. By way of example, the user interface 12a may include, or take the form of, a touch-based keypad. The water quality interface control module 12 may also include a signal processor or processing module, e.g., including element 102 in
The signal processor like element 102 (
The signal processor like element 102 (
The corresponding signaling may also contain information for treating the water being monitored, e.g., by providing or including treatment signaling along line 16a, consistent with that described below. For example, the in-line water treatment module 30 may be configured to receive the water and may include one or more in-line water treatment inputs 32a, 32b, 32c, 32d, 32e. Each in-line water treatment inputs 32a, 32b, 32c, 32d, 32e may be configured to receive the treatment signaling, e.g., along line 16a, that forms at least part the corresponding signaling, and may also be configured to provide one or more treatment materials 34a, 34b, 34c, 34d to change the quality of water being monitored, including where the treatment material 34a, 34b, 34c, 34d changes the pH and oxidation levels of water being monitored. Consistent with that set forth herein, the treatment material 34a, 34b, 34c, 34d may include materials for treating some combination of the primary and/or secondary contaminants, e.g., consistent with that set forth herein. The scope of the invention is not intended to be limited to any particular type or kind of the treatment material, and may include treatment materials that are both now known and later developed in the future. Moreover, in-line water treatment inputs or input modules, like elements 32a, 32b, 32c, 32d, 32e, are known in the art, and the scope of the invention is not intended to be limited to any particular type or kind thereof that is now known or later developed in the future.
The one or more remote user interfaces or display units 18a, 18b, 18c, 18d, 18e may be configured to receive remote user interface signaling, e.g., along line 14a, that forms at least part of the corresponding signaling. The one or more remote user interfaces or display units 18a, 18b, 18c, 18d, 18e may also include a display (e.g., like element 12b (
Embodiments are also envisioned in which a smart phone, a tablet, a desktop, a laptop, etc. may be configured with an app or application for remotely implementing the functionality of interfacing with the combination of elements 12, 14, 16, as well as the remote user interface or display units 18a, 18b, 18c, 18d, 18e, e.g., for monitoring the water from a remote location using such a smart phone, a tablet, a desktop, a laptop, etc. Embodiments are also envisioned in which the app or applications may be configured to allow such a smart phone, a tablet, a desktop, a laptop to provide suitable signaling to control, adapt, modify or program the combination of elements 12, 14, 16, e.g., to change/modify the user interface settings, or to provide suitable treatment signaling to the in-line water treatment module 30 along line 16a to implement a desired treatment to the water being monitored, etc. In other words, embodiments are envisioned within the combination of elements 12, 14, 16, the remote user interface or display units 18a, 18b, 18c, 18d, 18e, the inline water sensing module 20 and/or the in-line water treatment module 30 may be remotely controlled using such a smart phone, a tablet, a desktop, a laptop, etc. via such an app or application within the spirit of the underlying invention.
The scope of the invention is intended to include providing the respective signaling along lines 14a, or 16a, or 20a, as hard line signaling, as well as wireless remote (e.g., Bluetooth), Internet or WIFI signaling, e.g., using wireless signal protocols that are now known and later developed in the future.
Consistent with that shown in
The main component 52 may include a pH sensor module 52a, an ORP sensor module 52b, a power supply module 52c, and a response LED module 52d. In operation, the response LED 52d may be configured to indicate the range and/or percentage of change between the baseline test and the subsequent test of the pH and oxidation levels of water being monitored, e.g., showing the color “green” when the percentage of change is between 0% and 30%, showing the color “white” when the percentage of change is between 30% and 60%, and showing the color “red” when the percentage of change is between 60% and 100%.
The first modular component 54 may be configured as a wireless device, pack or hardware/software circuit for responding to associated signaling received from the main component 52, and for providing corresponding wireless signaling containing information about the quality of the water being monitored based upon a percentage of change between the baseline test and the subsequent test later in time to the baseline of the pH and oxidation levels of water being monitored. By way of example, the wireless signaling may be received by the one or more remote user interfaces 18a, 18b, 18c, 18d and 18e shown in
The second modular component 56 may be also configured for responding to other associated signaling received from the main component 52 and for providing a signal response (e.g., in the range of 4-20 mA) to a water treatment module. The signal response may include, or take the form of, an output signal to such a water treatment module. By way of example, the output signal may be received by the in-line water treatment module 30 in
The pH sensor module 52a and the ORP sensor module 52b may be configured to implement the sensing and associated signal processing related to the pH and ORP sensing functionality, e.g., consistent with that set forth herein. In summary, and by way of example, the basic product configuration 50 in
By way of example, the pH vs. ORP may be measured, as follows:
By way of example, the response of the system may include the following:
In operation, the pH vs. ORP would measure change (delta), which may be used consistent with the following:
By way of example, applications may include water quality awareness for domestic or commercial water supplies.
The functionality of the aforementioned modules or interfaces may be implemented in whole or in part using one or more signal processor or processing modules that may be configured using hardware, software, firmware, or a combination thereof, although the scope of the invention is not intended to be limited to any particular embodiment thereof. In a typical software implementation, a signal processor or processing module, e.g., like element 102 (
The signal processor or processing module, e.g., like element 102 (
The signal processor or processing module may also be configured to implement the underlying signal processing functionality in combination with other signal processor circuits or components 104 (
Applications for the present invention are broadly understood to include water treatment, including:
The scope of the invention is not intended to any particular type or kind of applications; and embodiments are envisioned, and the scope of the invention is intended to include, other types or kinds of application that are either now known or later developed in the future.
Some recommendations for determining project feasibility are:
Further still, the embodiments shown and described in detail herein are provided by way of example only; and the scope of the invention is not intended to be limited to the particular configurations, dimensionalities, and/or design details of these parts or elements included herein. In other words, a person skilled in the art would appreciate that design changes to these embodiments may be made and such that the resulting embodiments would be different than the embodiments disclosed herein, but would still be within the overall spirit of the present invention.
It should be understood that, unless stated otherwise herein, any of the features, characteristics, alternatives or modifications described regarding a particular embodiment herein may also be applied, used, or incorporated with any other embodiment described herein. Also, the drawings herein are not drawn to scale.
Although the invention has been described and illustrated with respect to exemplary embodiments thereof, the foregoing and various other additions and omissions may be made therein and thereto without departing from the spirit and scope of the present invention.
This application claims benefit to provisional patent application Ser. No. 61/942,419, filed 20 Feb. 2014, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
---|---|---|---|
61942419 | Feb 2014 | US |