A high recovery variable volume reverse osmosis system where the volume of concentrate cycled through the RO system is reduced in response to recovery levels increasing. By reducing the volume of concentrate cycled through the RO system, this reduces the cycle time of highly saturated concentrate passing through the RO system. Reducing the cycle time of concentrate passing through the RO system tends to minimize or reduce membrane scaling.

An intermediate power store for at least one power generating system, including: an osmosis device, a permeate store, a concentrate store and a control device. The osmosis device is designed to separate, in a charging operation, a liquid mixture with a charging pressure into a permeate and a concentrate, or, in a discharging operation, to mix the permeate with the concentrate while applying an osmotic pressure to the liquid mixture. The permeate store is fluidically connected to the osmosis device and is designed to store the permeate. The concentrate store is fluidically connected to the osmosis device and is designed to store the concentrate. The control device is designed to control the following functions: the charging operation using electrical power from the at least one power generating system, or the discharging operation while providing electrical power.

A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.

A sterilization water discharge device is disclosed. A sterilization water discharge device includes: a tray part, which is movably disposed under a discharge member for discharging water and allows sterilization water discharged from the discharge member to be received therein and discharged; and a movement driving part for moving the tray part.

An apparatus for treating water or liquids in general, including a reverse osmosis filtration device provided with at least one inlet associated with a line for supplying the liquid to be treated, at least one outlet of the permeate associated with a line for dispensing the treated liquid and at least one concentrate outlet associated with a line for discharging the waste. The particularity of the present invention resides in that it includes, downstream of the filtration device, at least one tank that forms inside it two adjacent chambers with a mutually variable volume, in which one chamber is connected to the delivery line while the other chamber is connected to the discharge line.

A household water purification system provided in the present model mainly includes: a pre-filter; a reverse osmosis membrane filter element; a first one-way valve and a second one-way valve; a switching device, used for connecting or disconnecting a water path between a water outlet of the pre-filter and a water inlet of the reverse osmosis membrane filter element; a water storage tank, having a first cavity used for accommodating pure water and a second cavity used for accommodating tap water treated by the pre-filter; a water tap, having a water inlet communicating with a water outlet of the second one-way valve through a water path; and a mechanical automatic reversing valve, used for connecting a water path between a second port and a fourth port and meanwhile disconnecting a water path between a third port and the fourth port; or disconnecting a water path between a second port and a fourth port and meanwhile connecting a water path between a third port and the fourth port according to a change in pressure of a first port of the mechanical automatic reversing valve. The household water purification system provided in the present model not only can reduce equipment costs, fault rate, and safety risk, but also can improve use comfort of a user.

A desalination system that is deployable in a body of water having a surface and a seafloor and which includes a vessel structure that is capable of travel in water, a reverse osmosis system disposed within an internal space of the vessel structure and a tank connected to the reverse osmosis system, the tank configured to receive filtered water from the reverse osmosis system. A positioning system is provided for controlling the travel of the vessel structure, and a ballast system is configured to control the buoyancy of the vessel structure. A controller is operably associated with the positioning system and the ballast system to control the position of the vessel below the surface of the body of water.

A feed of at least one of (a) a source liquid including a solvent with a dissolved impurity and (b) a retentate of the source liquid is pumped in a substantially closed loop through a liquid-separation module. The liquid-separation module includes a membrane that passes at least partially purified solvent to a permeate side of the membrane while diverting the impurity in a retentate on the retentate side of the membrane. The purified solvent is extracted from the permeate side of the membrane; and the retentate from the liquid-separation module is pumped to or through a pressurized reservoir with a variable volume for the feed component and recirculated as a component of the feed. Over time, the volume for the feed is reduced and the pressure applied to the feed in the reservoir is increased to balance against an increasing difference in osmotic pressure across the membrane.

The invention relates to the purification and/or desalination of a liquid. The present method includes purifying a liquid and flushing a liquid purification means. Raw liquid is fed, via a means for increasing pressure, along a raw liquid and drain liquid mixing line to a liquid purification means. Drain liquid is fed along a recirculation line in order to be mixed with raw liquid. After a set period of time, the liquid purification process is interrupted in order for the liquid purification means to be flushed by a liquid medium for the removal of contaminants which have built up on the inside surface of the liquid purification means. Downstream of the liquid purification means, the liquid medium is discharged at high speed into a drain. Prior to flushing of the liquid purification means, the purification process is interrupted at least once for a short period of time sufficient to enable disruption of a polarized layer of contaminants. A mixture of raw liquid and drain liquid is used as the liquid medium for flushing. Technical result: a reduction in the amount of raw liquid used for flushing and an increase in the service life of the water purification means.

Provided herein are an apparatus and process for manufacturing a formulation comprising a drug substance, said drug substance comprising a recombinant Listeria strain comprising a prostate specific antigen (PSA) or a chimeric HER2 antigen fused to a Listeriolysin O (LLO) protein fragment.