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US 2021/0331118 A1Published application
Three-dimensional feed spacers with tpms architectures for membrane-based systems
AssigneeKhalifa University of Science and Technology
InventorsHassan Arafat, Rashid Abu Al-Rub, Nurshaun Sreedhar, Oraib Al-Ketan, Navya Thomas
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Abstract
A filter element comprises a membrane layer; and a feed spacer on the membrane layer, wherein the feed spacer comprises a plurality of unit cells arranged in three dimensions, wherein each of the plurality of unit cells comprises a cavity defined by a triply periodic minimal surface, and wherein the cavities of the plurality of unit cells are interconnected to allow a fluid to pass through the cavities of the plurality of unit cells.
Claims20
A filtration device comprising:
- a filter element configured to allow a fluid to pass through, the filter element comprising:
- a membrane layer;
- and
- a feed spacer positioned on a surface of the membrane layer, the feed spacer having a structure comprising a plurality of layers, each of the layers having a two-dimensional pattern, wherein the plurality of layers are stacked on one another to form a plurality of unit cells arranged in three dimension, each of the plurality of unit cells comprising a cavity defined by a triply periodic minimal surface, wherein the cavities of the plurality of unit cells are interconnected to allow the fluid to pass through the cavities.
1 more element
A filtration device comprising:
- a housing;
- a filter element in the housing, the filter element comprising:
- a membrane layer;
- and
- a feed stream channel defined by a feed spacer positioned on the membrane layer, the feed stream channel being configured to receive a feed fluid comprising a solute, wherein the feed spacer comprises a structure having a plurality of unit cells arranged in three dimensions, each of the plurality of unit cells comprising a cavity defined by a triply periodic minimal surface, wherein the cavities of the plurality of unit cells are interconnected to allow the feed fluid to pass through the cavities;
- and
- a permeate-side spacer defining a permeate channel on the membrane layer opposite the feed spacer and configured to receive a permeate fluid via the membrane, the permeate fluid having a concentration of the solute that is less than a concentration of the solute in the feed fluid;
- a feed channel inlet configured to provide a feed fluid input to the feed stream channel;
- and
- a permeate outlet configured to provide a permeate output from the permeate-side spacer.
7 more elements
Dependencies are inferred from the claim text.