An ion exchange resin rejuvenation system includes a vessel, a source of a first cleaning solution including an enzyme fluidly connected to the vessel, a source of a second cleaning solution fluidly connected to the vessel, a source of rinse solution connected to the vessel, and a source of a resin regeneration solution fluidly connected to the vessel.

A water delivery control system operates to selectively deliver water from a water source to water use devices. The system includes a master controller that wirelessly communicates messages with a plurality of slave controllers. The system includes a valve slave controller associated with a water control valve and a motor that is operative to selectively move at least one valve element of the valve. A water meter is operative to measure water flow that corresponds to flow through the valve. The master controller is operable to cause the valve slave controller to enable or prevent flow through the valve responsive at least in part to water flow data. The controller is operative to determine a water use condition responsive to a water usage pattern, and to cause at least one message to be sent to a portable user device responsive to the determined water use condition. The user interface slave controller is associated with a user interface.

A water delivery control system operates to selectively deliver water from a water source to water use devices. The system includes a master controller that wirelessly communicates messages with a plurality of slave controllers. The system includes a valve slave controller associated with a water control valve and a motor that is operative to selectively move at least one valve element of the valve. A water meter is operative to measure water flow that corresponds to flow through the valve. The master controller is operable to cause the valve slave controller to enable or prevent flow through the valve responsive at least in part to water flow data. The controller is operative to determine a water use condition responsive to a water usage pattern, and to cause at least one message to be sent to a portable user device responsive to the determined water use condition. The user interface slave controller is associated with a user interface.

A water softener system includes a brine tank, an ion-exchange resin and a softener control valve fluidly coupling the brine tank and the ion-exchange resin. The softener control valve has an inlet configured to receive a flow of feed-water and an outlet configured to deliver a flow of product water. A flow meter is configured to monitor a flow rate of water to or from the control valve, and a sensor is arranged upstream of the inlet of the softener control valve to measure a fluid property of the flow of feed-water. A controller is configured to calculate an available exchange capacity of the ion-exchange resin using flow rate data from the flow meter and a hardness value of the feed-water, which the controller calculates using a fluid property value from the sensor and a predetermined coefficient. The controller is also configured to initiate a regeneration of the ion-exchange resin using the brine tank and the softener control valve, and to update the predetermined coefficient based at least partially on the calculated available exchange capacity upon initiating the regeneration.

A water softener system includes a brine tank, an ion-exchange resin and a softener control valve fluidly coupling the brine tank and the ion-exchange resin. The softener control valve has an inlet configured to receive a flow of feed-water and an outlet configured to deliver a flow of product water. A flow meter is configured to monitor a flow rate of water to or from the control valve, and a sensor is arranged upstream of the inlet of the softener control valve to measure a fluid property of the flow of feed-water. A controller is configured to calculate an available exchange capacity of the ion-exchange resin using flow rate data from the flow meter and a hardness value of the feed-water, which the controller calculates using a fluid property value from the sensor and a predetermined coefficient. The controller is also configured to initiate a regeneration of the ion-exchange resin using the brine tank and the softener control valve, and to update the predetermined coefficient based at least partially on the calculated available exchange capacity upon initiating the regeneration.

The invention relates to a method for purifying a target substance starting from a fluid to be treated which comprises at least one impurity. The method comprises treatment of a stream of the fluid to be treated using a chromatography step in a first separation unit, collection of a fraction enriched with the target substance in a first tank, and viral inactivation of the fraction enriched with the target substance. The viral inactivation comprises passing the fraction enriched with the target substance through a second separation unit, passing a viral inactivation solution through the second separation unit, mixing, and collecting the mixture in the second tank to obtain a fraction depleted of active virus. The method further comprises treatment of the fraction depleted of active virus using a chromatography step in the second separation unit and collection of a fraction more enriched with the target substance.

The invention relates to a method for purifying a target substance starting from a fluid to be treated which comprises at least one impurity. The method comprises treatment of a stream of the fluid to be treated using a chromatography step in a first separation unit, collection of a fraction enriched with the target substance in a first tank, and viral inactivation of the fraction enriched with the target substance. The viral inactivation comprises passing the fraction enriched with the target substance through a second separation unit, passing a viral inactivation solution through the second separation unit, mixing, and collecting the mixture in the second tank to obtain a fraction depleted of active virus. The method further comprises treatment of the fraction depleted of active virus using a chromatography step in the second separation unit and collection of a fraction more enriched with the target substance.

A water softener apparatus comprising a housing having a chamber for accommodating at least one compressed salt block having an elongated block form, the configuration accommodating the compressed salt block within the chamber with its longitudinal axis in a vertical orientation. The water softener apparatus includes a manually detachable front cover enclosing the chamber and a non-touch salt level indicator device arranged in or on the front cover of the housing above the chamber to determine a salt level from an upper end face of the compressed salt block accommodated in the chamber, the non-touch salt level indicator device determining the salt level from the upper end face of the compressed salt block through a wall of the front cover of the housing. The non-touch salt level indicator device is a battery powered device and the water softener apparatus is a non-electric powered water softener apparatus.

A water softener apparatus comprising a housing having a chamber for accommodating at least one compressed salt block having an elongated block form, the configuration accommodating the compressed salt block within the chamber with its longitudinal axis in a vertical orientation. The water softener apparatus includes a manually detachable front cover enclosing the chamber and a non-touch salt level indicator device arranged in or on the front cover of the housing above the chamber to determine a salt level from an upper end face of the compressed salt block accommodated in the chamber, the non-touch salt level indicator device determining the salt level from the upper end face of the compressed salt block through a wall of the front cover of the housing. The non-touch salt level indicator device is a battery powered device and the water softener apparatus is a non-electric powered water softener apparatus.

A system and method configured to restore ion exchange kinetic properties and purify resin is described. Degraded ion exchange kinetic properties of anion resin will eventually result in impurity slippage through resin charges. This system and method employs an acid catalyst in combination with sulfite cleaning solution to remove organic material and to protonate iron oxides for deconstruction and removal from anion resins. The cleaning solution, when applied via a cleaning vessel utilizing an eductor(s)/plenum and wedge-wire screen draw chamber, while controlling all phases of cleaning by electronic monitoring, yields complete restoration of ion exchange kinetics on usable resin. As such, the system and method provides a safe, effective, and vastly improved method for restoring anion resin kinetics and improving regeneration quality, for improved resin performance and minimizing resin replacement costs.