An enclosure assembly configured to receive a plurality of fiber membranes configured to filter fluid may include an elongated tubular member including an elongated wall extending between first and second ends, and a removable hatch coupled to opposing side edges of the elongated wall, thereby forming a hollow enclosure having an interior. The interior of the elongated tubular member may be configured to receive a plurality of fiber membranes configured to filter fluid.

Provided is an improved filtration module assembly comprising a vessel having a filtration cartridge disposed within it and a header coupled to an end of the vessel, the header including a housing having an open-ended upper end and a lower end, and an end cap including a portion that mates with a complimentary structure defined by the inner all of the open ended upper end of the housing to removable engage with the housing and the end cap may further define a passageway for fluid to flow out of the vessel. The filtration module assembly may enable an improved manifold arrangement used to communicate fluids to and from a filtration system comprising a plurality of such modules and the configurations of the present invention may facilitate improved operation of such filtration systems.

Disclosed herein are apparatus and methods for filtering a fluid including a filter module assembly coupled to a manifold. The manifold may include a manifold inlet in fluid communication with a source of feed liquid, an outlet in fluid communication with header of the filter module assembly, a fluid passageway in fluid communication with the manifold inlet, a source of gas, and the outlet, a second fluid passageway in fluid communication with the header and the first fluid passageway and a second manifold outlet vertically displaced from the first manifold outlet and in fluid communication between the first fluid passageway and the second fluid passageway.

Provided is an improved filtration module assembly comprising a vessel having a filtration cartridge disposed within it and a header coupled to an end of the vessel, the header including a housing having an open-ended upper end and a lower end, and an end cap including a portion that mates with a complimentary structure defined by the inner wall of the open ended upper end of the housing to removably engage with the housing and the end cap may further define a passageway for fluid to flow out of the vessel. The filtration module assembly may enable an improved manifold arrangement used to communicate fluids to and from a filtration system comprising a plurality of such modules and the configurations of the present invention may facilitate improved operation of such filtration systems.

A modular header for a filtration module assembly is provided. The modular header includes a main body, a first liquid passageway and a second liquid passageway extending through the main body, and a gas passageway extending through the main body. The gas passageway has a first open end formed at a first side surface of the main body and an opposing second open end formed at a second side surface of the main body. An auxiliary adapter is secured to the main body at at least one of the first and second open ends of the gas passageway.

A multi-element filtration vessel included spaced beams for supporting and/or aligning filtration elements from below. The filtration elements have bottom ends adapted to rest upon adjacent support beams and also to extend between them to form a cavity that can capture feed fluid and an aeration gas and conduct it into the filtration element. In another aspect, a multi-element filtration vessel has removable aerators mounted on a projection on the wall of the filtration vessel.

A filtration system can include a loading member configured to receive a plurality of filtration members which can be sequentially moved from a non-active position in which a respective one of the plurality of filtration members is not in fluid communication with a sample flow path of the cell removal system, to an active position in which the respective filtration member is in fluid communication with the sample flow path, and to a discarded position in which the respective filtration member has been removed from fluid communication with the sample flow path.

Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.

The present invention relates to a method of operating a membrane filtration unit including plural hollow fiber membrane modules connected to each other in parallel, the method including: a filtration step; a collection step; and a recovery step, in which a relation of n.sub.1n.sub.2>n.sub.3 is satisfied, where n.sub.1 is the number of the hollow fiber membrane modules simultaneously used in executing the filtration step, n.sub.2 is the number of the hollow fiber membrane modules simultaneously used in executing the collection step, and n.sub.3 is the number of the hollow fiber membrane modules simultaneously used in executing the recovery step.

A hollow fiber module includes hollow fiber cartridges. A port receives a second solution to be treated in a shell side volume and another port for discharging the treated second solution. A first end cap has an inlet for a first solution and a distributer for distributing the first solution to a first end of the hollow fiber cartridges. A second end cap has a collector for collecting the treated first solution from the second end of the hollow fiber cartridges and an outlet for the treated first solution. A first connector has an inlet for the second solution and a distributer for distributing the second solution to a port of the hollow fiber cartridges. A second connector has a collector for collecting the treated second solution from the other port of the hollow fiber cartridges and an outlet for the treated second solution.