Rotary interface for fluid assemblies and related methods of fabrication and use

A fluid assembly comprising:

• a vessel configured to house a fluid;
• a motor in operative communication with a shaft, and a first porous impeller mounted with respect to the shaft, the first porous impeller configured to be immersed in the fluid housed in the vessel so that when rotary motion from the motor is transferred to the first porous impeller, the first porous impeller moves and agitates the fluid, wherein filtrate from the fluid can be extracted from the vessel via the first porous impeller;
• and
• a housing surrounding at least a portion of the first porous impeller, the housing configured to create pressure on the first porous impeller to promote fluid flow through the first porous impeller, wherein the housing is an inverted cup housing;
• and wherein a top surface of the housing has at least one opening.

A fluid assembly comprising:

• a vessel configured to house a fluid;
• a motor in operative communication with a shaft, and a first porous impeller mounted with respect to the shaft, the first porous impeller configured to be immersed in the fluid housed in the vessel so that when rotary motion from the motor is transferred to the first porous impeller, the first porous impeller moves and agitates the fluid, wherein filtrate from the fluid can be extracted from the vessel via the first porous impeller;
• and
• wherein:
• the shaft includes an upper manifold and a lower manifold, the upper manifold mounted with respect to the lower manifold by a first side member and a second side member, and the first porous impeller mounted with respect to the first and second side members;
• and
• the first and second side members comprise flexible ropes.