Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

A method for prompting salt content in a salt container of a water softening device, a salt container and a water softening device are provided. The method includes: obtaining a current salt content in a cavity of the salt container; and determining that the current salt content is lower than a preset salt content, and in accordance with a determination that the current salt content is lower than the preset salt content, adjusting brightness of a first light-emitting assembly facing the cavity.

A method for prompting salt content in a salt container of a water softening device, a salt container and a water softening device are provided. The method includes: obtaining a current salt content in a cavity of the salt container; and determining that the current salt content is lower than a preset salt content, and in accordance with a determination that the current salt content is lower than the preset salt content, adjusting brightness of a first light-emitting assembly facing the cavity.

A water softener salt monitoring system includes a brine tank configured for retaining a quantity of salt, a quantity of water and having a bottom, a sensor secured to the brine tank and constructed and arranged for sending a signal to the bottom, the sensor including a receiver configured for receiving a reflected signal off of at least one of the quantity of salt, the quantity of water and the bottom, and a controller connected to the sensor and programmed to compare the reflected signals with preset values, and for generating an alarm signal upon receipt of deviations from the preset values.

A control system for a water treatment apparatus that includes a control valve assembly having a servo chamber in which a stationary port defining signal ports is located. A regeneration control disc sealingly engages and rotates on a planar surface of the port disc and selectively communicates fluid signals to water pressure operated components within the control valve. An electric motor located in a dry chamber is operatively coupled to the regeneration control disc and rotates the disc during a regeneration cycle. An encoder coupled to the control disc monitors its position and movement. A turbine assembly monitors water treated or to be treated and is electronically coupled to a regeneration controller. A sensor emits pulses related to rotation of the usage turbine and communicates these pulses to the controller which uses this information to determine when a regeneration is needed whereupon the drive motor is appropriately energized.

A control system for a water treatment apparatus that includes a control valve assembly having a servo chamber in which a stationary port defining signal ports is located. A regeneration control disc sealingly engages and rotates on a planar surface of the port disc and selectively communicates fluid signals to water pressure operated components within the control valve. An electric motor located in a dry chamber is operatively coupled to the regeneration control disc and rotates the disc during a regeneration cycle. An encoder coupled to the control disc monitors its position and movement. A turbine assembly monitors water treated or to be treated and is electronically coupled to a regeneration controller. A sensor emits pulses related to rotation of the usage turbine and communicates these pulses to the controller which uses this information to determine when a regeneration is needed whereupon the drive motor is appropriately energized.

A self-regenerating ion-exchange water softener has an inlet connectable to a source of softenable water under pressure, a resin chamber connected thereto, and an outlet connected to the resin chamber. A salt chamber is located above the resin chamber and contains a water-soluble salt for regenerating the resin. A chamber connection allows controlled downward flow of fluid from the salt chamber to the resin chamber. A first normally-open pressure-sensitive valve closes in response to increased water pressure in the resin chamber, and normally permits a downward fluid flow from the salt chamber to the resin chamber. A passageway permits pressurized water to flow upwardly from the resin chamber to a point above the high-water mark of the salt chamber to generate salt solution for contacting and regenerating the resin, and has a discharge control above the high-water mark.

A water reclamation method on the basis of integrated use of magnetic resin adsorption and electrosorption is provided. It belongs to the water reclamation field, including the following steps: pump the biotreated effluent into a reactor that is filled with magnetic resin particles so that the chromaticity, organic pollutants, total nitrogen, total phosphorus contained in the wastewater can be effectively reduced; channel the fully reacted mixture into a precipitation tank for separation; part of the separated magnetic resin is pumped back into the reactor while the rest of the separated magnetic resin flows into a regeneration tank; the wastewater treated by magnetic resin adsorption then flows into an electrosorption unit for a desalting process; the remaining organic pollutants and inorganic pollutants are further removed.

Systems and methods for managing effluent from recharging zirconium phosphate and/or zirconium oxide are provided. The systems and methods control the pH of the zirconium phosphate and zirconium oxide effluent to allow for safe disposal. The systems and methods provide for management of the recharger effluent pH while recharging zirconium phosphate and zirconium oxide either independently or concurrently.