Abstract: Systems, apparatus, methods, and articles of manufacture for hydroponics systems are described. In one embodiment, a containment vessel is provided with a removable cover and/or a separable weir.

Abstract: A filter unit that includes a slide assembly and a head assembly. The slide assembly is moveably mounted to the head assembly. The head assembly is configured to receive an end portion of a filter cartridge in releasable engagement. The slide assembly is movable between a first position in which the slide assembly prevents disengagement of the filter cartridge from the head assembly, and a second position in which the filter cartridge is permitted to disengage from the head assembly. In the second position, the slide assembly maintains engagement with the head assembly until an external force is applied by engagement of the filter cartridge with the slide assembly when removing the filter cartridge from the head assembly.

Abstract: Provided are media cartridges that have adjustable bypasses, and systems and methods that use them. Aspects include an adjustable bypass filter cartridge where a treated stream and an adjusted non-treated stream combine prior to post-filtration and the percentage or ratio of treated the and the non-treated water is adjustable at the time of installation from the outside of the filter cartridge with a known or predictable level of bypass. Media cartridges comprise: an inlet in fluid communication with a feed chamber and an outlet in fluid communication with a mixing compartment; a media compartment containing a media; a bypass port in fluid communication with the feed chamber and the mixing compartment. Such cartridges can be adjusted to meet the needs of a wide variety of end uses.

Abstract: A falling film of liquid desiccant in direct contact with a gas stream is formed, which allows water vapor transfer between a gas stream (air) and the desiccant, enabling dehumidification and/or humidification of air. Thin films are created in one way by a wettable layer that is in contact with a support structure and in another way directly on the support structure. The devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of air conditioning systems; for example, liquid desiccant air conditioning (LDAC) applications.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston. The body of the piston may have sections of differing diameters, where the smaller diameter sections form flow channels, or the body may a diameter that is substantially the same along its length in conjunction with gratings and flow channels.

Abstract: A filter cartridge for operatively engaging a spool valve manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

Abstract: Provided are media cartridges that have adjustable bypasses using linear movement, and systems and methods that use them. Aspects include an adjustable bypass filter cartridge where a treated stream and an adjusted non-treated stream combine prior to post-filtration and the percentage or ratio of treated the and the non-treated water is adjustable at the time of installation from the outside of the filter cartridge with a known or predictable level of bypass. Media cartridges comprise: an inlet in fluid communication with a feed chamber and an outlet in fluid communication with a mixing compartment; a media compartment containing a media; a bypass port in fluid communication with the feed chamber and the mixing compartment; and a bypass regulator that is adjustable by linear movement. Such cartridges maybe adjusted to meet the needs of a wide variety of end uses.

Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston.

Abstract: A falling film of liquid desiccant in direct contact with a gas stream is formed, which allows water vapor transfer between a gas stream (air) and the desiccant, enabling dehumidification and/or humidification of air. Thin films are created in one way by a wettable layer that is in contact with a support structure and in another way directly on the support structure. The devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of air conditioning systems; for example, liquid desiccant air conditioning (LDAC) applications.

Abstract: A falling film of liquid desiccant in direct contact with a gas stream is formed, which allows water vapor transfer between a gas stream (air) and the desiccant, enabling dehumidification and/or humidification of air. Thin films are created in one way by a wettable layer that is in contact with a support structure and in another way directly on the support structure. The devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of air conditioning systems; for example, liquid desiccant air conditioning (LDAC) applications.

Abstract: A filter cartridge for operatively engaging a spool valve manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

Abstract: A filter cartridge for operatively engaging a manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

Abstract: Provided are flexible panel devices that use desiccants for heat and mass transfer processes, including but not limited to air conditioning systems, for example, liquid desiccant air conditioning (LDAC) applications wherein the liquid desiccant is contained in a panel that comprises at least one hydrophilic separation layer, which allows water vapor transfer between the air and liquid desiccant and enable dehumidification and humidification of the air. The flexible panel devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of a LDAC system. The devices have two flexible layers, at least one of which comprises a flexible and water vapor permeable hydrophilic separation layer, that form a desiccant flow channel and a desiccant flow distributor located therein.

Abstract: Provided are media cartridges that have adjustable bypasses using linear movement, and systems and methods that use them. Aspects include an adjustable bypass filter cartridge where a treated stream and an adjusted non-treated stream combine prior to post-filtration and the percentage or ratio of treated the and the non-treated water is adjustable at the time of installation from the outside of the filter cartridge with a known or predictable level of bypass. Media cartridges comprise: an inlet in fluid communication with a feed chamber and an outlet in fluid communication with a mixing compartment; a media compartment containing a media; a bypass port in fluid communication with the feed chamber and the mixing compartment; and a bypass regulator that is adjustable by linear movement. Such cartridges maybe adjusted to meet the needs of a wide variety of end uses.

Abstract: A fluid interconnect for a fluid handling device is disclosed. The fluid interconnect comprises a connector having a first axis. A sealing member is disposed on the connector. At least one camming member is also disposed on the connector. The at least one camming member is disposed inboard of the sealing member.

Abstract: A filter cartridge for operatively engaging a manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

Abstract: A filter cartridge for operatively engaging a manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element. The inlet/outlet portion extending from one end of the filter. A first lug protruding radially outward from the inlet/outlet portion having a curved surface facing shoulder surface of the filter.

Abstract: Provided are flexible panel devices that use desiccants for heat and mass transfer processes, including but not limited to air conditioning systems, for example, liquid desiccant air conditioning (LDAC) applications wherein the liquid desiccant is contained in a panel that comprises at least one hydrophobic separation layer, which allows water vapor transfer between the air and liquid desiccant and enable dehumidification and humidification of the air. The flexible panel devices can be installed on an absorber (conditioner) side or a desorber (regenerator) side or both of a LDAC system. The devices have two flexible layers, at least one of which comprises a flexible and water vapor permeable hydrophobic separation layer, that form a desiccant flow channel and a desiccant flow distributor located therein. The two flexible layers may both be permeable hydrophobic separation layers, or they may comprise one permeable hydrophobic separation layer along with a non-porous layer.

Abstract: A filter unit that includes a slide assembly and a head assembly. The slide assembly is moveably mounted to the head assembly. The head assembly is configured to receive an end portion of a filter cartridge in releasable engagement. The slide assembly is movable between a first position in which the slide assembly prevents disengagement of the filter cartridge from the head assembly, and a second position in which the filter cartridge is permitted to disengage from the head assembly. In the second position, the slide assembly maintains engagement with the head assembly until an external force is applied by engagement of the filter cartridge with the slide assembly when removing the filter cartridge from the head assembly.

Abstract: A filter holder is disclosed comprising a base for supporting the filter holder on a work surface, a tilting mechanism attached to the base, and a holder arm attached to the tilting mechanism at a tilt axis. The holder arm comprises a base end and a distal end and is tiltable about the tilt axis to a service position and an ergonomic loading position.