Stackable forward osmosis membrane vessel with side ports

A forward osmosis membrane vessel comprising:

• a body having a proximal end portion and a distal end portion spaced from the proximal end portion, the body defining a cavity therein and delineating a strong draw solution inlet, a strong draw solution outlet, a diluted draw solution inlet, a diluted draw solution outlet, a first feed stream inlet, a second feed stream inlet, a brine inlet, and a brine outlet;
• a strong draw solution chamber disposed within the cavity at one of the proximal end portion or the distal end portion, the strong draw solution chamber being in fluid communication with the strong draw solution inlet for receiving a strong draw solution stream;
• a first and a second semipermeable membrane each disposed within the cavity of the body, the first and the second semipermeable membranes each comprising a feed side for receiving a feed stream comprising a feed solute, and a draw side for receiving the strong draw solution stream comprising a draw solute, wherein the first and second semipermeable membranes are configured to produce a diluted draw solution stream and the first semipermeable membrane is configured to produce a first brine stream and the second semipermeable membrane is configured to produce a second brine stream;
• and
• a brine chamber disposed at least partially between the first semipermeable membrane and the second semipermeable membrane, the brine chamber in fluid communication with the first semipermeable membrane for receiving the first brine stream and in fluid communication with the second semipermeable membrane for receiving the second brine stream,
• wherein the forward osmosis membrane vessel is configured to be stackable, such that in a stacked configuration the brine chamber and the strong draw solution chamber of the forward osmosis membrane vessel align with a brine chamber and a strong draw solution chamber of an adjacent second forward osmosis membrane vessel.

A forward osmosis membrane vessel comprising:

• a body having a proximal end portion and a distal end portion spaced from the proximal end portion, the body delineating a strong draw solution inlet, a strong draw solution outlet, a diluted draw solution inlet, a diluted draw solution outlet, a first feed stream inlet, a second feed stream inlet, a brine inlet, and a brine outlet, the body having an inner surface defining a cavity therein,
• a strong draw solution chamber disposed within the cavity at one of the proximal end portion or the distal end portion, the strong draw solution chamber being in fluid communication with the strong draw solution inlet for receiving a strong draw solution stream;
• a plurality of semipermeable membranes each disposed within the cavity of the body, the plurality of semipermeable membranes each having a first end, a second end spaced from the first end, and an inner surface delineating a passageway extending from the first end to the second end, each of the plurality of semipermeable membranes having a draw side along the inner surface of semipermeable membrane for receiving the strong draw solution stream comprising a draw solute and a feed side at the first end for receiving a feed stream comprising a feed solute, wherein the plurality of semipermeable membranes are configured to permit water and the draw solute to transfer therethrough, such that the draw solute flows in a cross-flow direction with respect to the feed stream and each of the plurality of semipermeable membranes produces a brine stream, wherein the plurality of semipermeable membranes are configured to operate in parallel;
• and
• a brine chamber for receiving the brine stream produced by each of the plurality of semipermeable membranes, the brine chamber in fluid communication with the brine outlet,
• wherein the forward osmosis membrane vessel is configured to be stackable, such that in a stacked configuration the brine chamber and the strong draw solution chamber of the forward osmosis membrane vessel align with a brine chamber and a strong draw solution chamber of an adjacent second forward osmosis membrane vessel.