Various reverse osmosis (RO) filter systems are disclosed herein. The RO filter systems can include one or more RO filters connected to and in fluid communication with an end cap filter component and/or a fluid turbine component. Some RO filter systems can further include a filter component connected to and in fluid communication with the one or more RO filters and/or a fluid turbine component. Additional RO filter systems can further include a pre-filter component connected to the filter component.

Devices and methods for the filtration of particulates from a liquid stream are provided. A filter cartridge includes a housing configured to be placed in-line with a stream of liquid and a plurality of hollow fiber filter members disposed within the housing. The hollow fiber filter members are potted at one end of the housing and configured to capture particulates from the stream of liquid via surface energy. The filter cartridge can provide low pressure loss filtering and is capable of being placed within a small space.

A fluid circuit includes a plurality of tubing segments and a plurality of operative components. Each tubing segment includes i) a non-conductive polymer portion defining a fluid passageway and ii) one or more interior conductive fluoropolymer stripes extending axially to the ends of each of the respective tubing segments. Each operative component includes a conductive fluoropolymer that extends between a plurality of tubing connector fittings forming a part of the fluid circuit, wherein each of the tubing connector fittings conductively connect the respective conductor of the operative component to the interior conductive fluoropolymer stripes of the tubing segment to provide a path to ground that extends through each operative component and each tubing segment.

The invention concerns a filtration assembly for microbiological testing and a method of using the filtration assembly for that purpose. The filtration assembly (1) comprises a ring-like membrane support (10) holding a filtration membrane (11), a cylindrical reservoir (20) of which opposite axial ends have openings and one axial opening is removably and fluid-tightly attachable to the membrane support (10) to define a sample volume adjacent to the filtration membrane (11) on one axial side of the membrane support (10); and a lid device (40) removably and fluid tightly attachable to the other axial opening of the reservoir (20) to close the opening. Further, the lid device (40) is removably and fluid tightly attachable to the membrane support (10) so as to seal the one axial side of the membrane support (10) from the environment.

Silicon carbide flat sheet filtration membranes are supported on one piece manifold/end cap structures. Ends of a large number of the parallel flat plate membranes are fitted into elongated end cap slots that are part of a single molded manifold/end cap structure, such a structure being at each end of the series of membranes. In addition, a one piece external frame module can be provided to receive the gang of flat plate membranes with attached manifold/end caps. In the event of a damaged plate, the plate can be removed and replaced along with a special end cap repair section. This provides advantages over prior arrangements with individual end caps for each module or potting of the flat plates into a box or chamber.

A reverse osmosis system to be connected to a feed water conduit and producing permeate water is disclosed. The reverse osmosis system includes a plurality of tubular bodies each having a first end and a second end, a first inner end plate attached to the first end of the tubular bodies, and a second inner end plate attached to the second end of the tubular bodies. The plurality of tubular bodies houses a filter, a pump, and two reverse osmosis membranes therein. The plurality of tubular bodies is configured to be connected in in fluid communication with each other via channels disposed within the end plates.

An apparatus for treating a biological fluid, comprising a plurality of filtration devices. In some embodiments, each of the plurality of filtration devices comprising at least one inlet and at least one outlet; and a first insert plate and a second insert plate opposite the first insert plate, wherein the plurality of filtration devices is disposed therebetween. In some embodiments, each filtration device has a vent port. A manifold for each of the inlets, outlets, and vent ports is optionally fluidly connected. In another embodiment, hose barb connectors or the like may be protected from damage and/or exposure by being recessed in the device or positioned at a periphery of the device. Embodiments include apparatus and methods to achieve dripless connect/disconnect and to reduce the number of sterile-to-sterile connections.

Disclosed are a spiral wound reverse osmosis membrane element, a spiral wound reverse osmosis membrane module and a process for making the reverse osmosis membrane element.

A product concentration device that utilizes a reservoir connected to a hollow-fiber filter element where the reservoir can serve as a container for filtrate emanating from another filtering device, such that product in the reservoir can be stored, concentrated and/or further processed as desired. Enclosed reactor systems, each of at least three chambers, fluid flow between the chambers controlled by selectively permeable barriers, flow controlled by an alternating flow diaphragm pump.

A reverse osmosis system includes a multi-element membrane array having a plurality of membrane elements disposed in series and a plurality of permeate pipes receiving permeate from a respective one of the plurality of membrane elements. Each of the plurality of elements has an inlet and an outlet. A plurality of connectors coupling successive permeate pipes together. Each of the plurality of connectors includes one of a plurality of flow restrictors. Each of the plurality of flow restrictors is sized to further restrict permeate flow into a subsequent permeate pipe of the plurality of permeate pipes.