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US 2025/0010244 A1Published application
Cross-flow membrane filtration channel
AssigneeNanyang Technological University
InventorsFarhad ZAMANI, Jia Wei CHEW, Ebrahim AKHONDI, William Bernard KRANTZ, Anthony Gordon FANE, Yong Zen TAN
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Abstract
A cross-flow membrane filtration channel for filtration of a liquid feed comprising particulate foulants includes an inlet and an outlet, and at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane where the channel is defined by the at least one liquid-permeable membrane.
Claims20
A cross-flow membrane filtration channel for filtration of a liquid feed comprising particulate foulants, the channel comprising:
- an inlet and an outlet, wherein a centreline of the channel is defined from the inlet to the outlet, wherein a direction of flow of the liquid feed in the channel is defined along the centreline from the inlet to the outlet of the channel;
- and
- at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane, the channel being defined by the at least one liquid-permeable membrane,
- wherein at least one surface of the channel is inclined at an angle away from the centreline of the channel in the direction of liquid feed flow in the channel, such that the particulate foulants in the liquid feed embark on trajectories away from the at least one liquid-permeable membrane to thereby reduce fouling of the at least one liquid-permeable membrane.
1 more element
A filtration module for filtration of a liquid feed comprising particulate foulants, the module comprising:
- a plurality of cross-flow membrane filtration channels for filtration of the liquid feed in the channels;
- and
- each of the channels in the plurality of cross-flow membrane filtration channels comprises a channel selected from at least one of:
- A) a cross-flow membrane filtration channel comprising:
- an inlet and an outlet, wherein a centreline of the channel is defined from the inlet to the outlet, wherein a direction of flow of the liquid feed in the channel is defined along the centreline from the inlet to the outlet of the channel;
- and
- at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane, the channel being defined by the at least one liquid-permeable membrane,
- wherein at least one surface of the channel is inclined at an angle away from a centreline of the channel in a direction of liquid feed flow in the channel, and
- wherein the at least one surface comprises the at least one liquid-permeable membrane;
- B) a cross-flow membrane filtration channel comprising:
- an inlet and an outlet, wherein a centreline of the channel is defined from the inlet to the outlet, wherein a direction of flow of the liquid feed in the channel is defined along the centreline from the inlet to the outlet of the channel;
- and
- at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane, the channel being defined by the at least one liquid-permeable membrane,
- wherein at least one surface of the channel is inclined at an angle away from the centreline of the channel in the direction of liquid feed flow in the channel,
- wherein the at least one surface comprises the at least one liquid-permeable membrane, and
- wherein the at least one liquid-permeable membrane is one of:
- a flat sheet membrane, a tubular membrane, or a hollow fibre membrane;
- C) a cross-flow membrane filtration channel comprising:
- an inlet and an outlet, wherein a centreline of the channel is defined from the inlet to the outlet, wherein a direction of flow of the liquid feed in the channel is defined along the centreline from the inlet to the outlet of the channel;
- and
- at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane, the channel being defined by the at least one liquid-permeable membrane,
- wherein at least one surface of the channel is inclined at an angle away from the centreline of the channel in the direction of liquid feed flow in the channel,
- wherein the at least one surface comprises the at least one liquid-permeable membrane, and
- wherein the channel comprises two liquid-permeable membranes forming two surfaces and both surfaces are inclined away from the centreline of the channel in the direction of liquid feed flow in the channel;
- or
- D) a cross-flow membrane filtration channel comprising:
- an inlet and an outlet, wherein a centreline of the channel is defined from the inlet to the outlet, wherein a direction of flow of the liquid feed in the channel is defined along the centreline from the inlet to the outlet of the channel;
- and
- at least one liquid-permeable membrane configured for filtration of the particulate foulants in the liquid feed based on size of the particulate foulants and for filtered liquid permeate to pass through the at least one liquid-permeable membrane, the channel being defined by the at least one liquid-permeable membrane,
- wherein at least one surface of the channel is inclined at an angle away from the centreline of the channel in the direction of liquid feed flow in the channel, and
- wherein the at least one surface comprises a non-permeable wall of the channel, and
- wherein the particulate foulants in the liquid feed in each of the channels embark on trajectories away from the respective at least one liquid-permeable membrane to thereby reduce fouling of the respective at least one liquid-permeable membrane.
29 more elements
A method for filtration of a liquid feed comprising particulate foulants, the method comprising:
- communicating the liquid feed in a cross-flow membrane filtration channel in a direction of liquid feed flow along a centreline of the channel, wherein the channel is defined by at least one liquid-permeable membrane, and wherein at least one surface of the channel is inclined at an angle away from the centreline of the channel in the direction of liquid feed flow in the channel;
- filtering, using the at least one liquid-permeable membrane of the channel, the particulate foulants in the liquid feed based on size of the particulate foulants;
- passing filtered liquid permeate through the at least one liquid-permeable membrane;
- and
- removing the particulate foulants in the liquid feed on trajectories away from the at least one liquid-permeable membrane to thereby reduce fouling of the at least one liquid-permeable membrane.
2 more elements
A method for filtration of a liquid feed comprising particulate foulants, the method comprising:
- communicating the liquid feed in a plurality of cross-flow membrane filtration channels for filtration of the liquid feed in the channels;
- communicating the liquid feed in each channel in a direction of liquid feed flow along a centreline of the respective channel, wherein the respective channel is defined by at least one liquid-permeable membrane,
- filtering, using the respective at least one liquid-permeable membrane of the respective channel, the particulate foulants in the liquid feed based on size of the particulate foulants;
- passing filtered liquid permeate through the respective at least one liquid-permeable membrane of the respective channel;
- and
- removing the particulate foulants in the liquid feed in each of the channels on trajectories away from the respective at least one liquid-permeable membrane to thereby reduce fouling of the respective at least one liquid-permeable membrane,
- wherein in at least one of the cross-flow membrane filtration channels:
- A) at least one surface of the respective channel is inclined at an angle away from the centreline of the respective channel in the direction of liquid feed flow in the respective channel, and at least one surface of the respective channel comprises the respective at least one liquid-permeable membrane;
- B) at least one surface of the respective channel is inclined at an angle away from the centreline of the respective channel in the direction of liquid feed flow in the respective channel, at least one surface of the respective channel comprises the respective at least one liquid-permeable membrane, and the respective at least one liquid-permeable membrane is one of:
- a flat sheet membrane, a tubular membrane, or a hollow fibre membrane;
- C) at least one surface of the respective channel is inclined at an angle away from the centreline of the respective channel in the direction of liquid feed flow in the respective channel, and at least one surface of the respective channel comprises the respective at least one liquid-permeable membrane, and the respective channel comprises two liquid-permeable membranes forming two surfaces and both surfaces are inclined away from the centreline of the respective channel in the direction of liquid feed flow in the respective channel;
- or
- D) at least one surface of the respective channel is inclined at an angle away from the centreline of the respective channel in the direction of liquid feed flow in the respective channel, and at least one surface of the respective channel comprises a non-permeable wall of the respective channel.
10 more elements
Dependencies are inferred from the claim text.