Membranes TRIZ Cases

Variable-speed control in insulated series-coupled RO vessels stabilizes permeate flow without buffer tanks, reducing cavitation and oxygen exposure.

Recirculating flushing liquid and decanting spent sorbent cuts liquid loss in hollow-fiber precoat filtration and reduces wastewater.

Dual centrifugal pumps control transmembrane pressure and flow without pinch valves, reducing shear and contamination in tangential filtration.

Embedding proteoliposomes in a porous substrate before interfacial polymerization protects aquaporins while maintaining water permeability and solute rejection.

Elongate leak-capture holes and notched gasket frames improve membrane hydrogen purification while keeping mixed-gas separation compact.

A siloxane-based surface coating makes permeable vents repel water without fluorine while keeping gas flow and blocking liquid entry.

Rigid distributor caps replace hoses and storage bags to cut dead space, back-mixing, and contamination in bioprocess unit interconnection.

Electroosmosis and ion-exchange membranes remove small-molecule byproducts in situ, driving condensation reactions without thermal separation.

Two membrane stages with recycle and permeate discharge help maintain methane purity and recovery while reducing membrane area and compression power.

Tortuous tubular membrane modules boost heat and mass transfer in a compact exchanger while reducing connections and contamination risk.

A superhydrophilic, underwater superoleophobic SiC-polyamide ceramic membrane improves oil-water separation while resisting fouling and maintaining stability.

Continuous turbidity and derivative monitoring detects crystallization onset in concentrate streams before membrane scaling cuts recovery.

A bent-structure polyimide film resists steam-driven hydrolysis while maintaining radioactive noble gas removal in reactor vent systems.

Electrolysis maintains the concentration gradient for forward osmosis, purifying water with lower energy use while producing hydrogen and oxygen.

Energy recovery from high-pressure brine cuts desalination power use, while offshore discharge mixing lowers effluent salinity and marine harm.

Biaxial expansion below sintering temperature helps ePTFE composite membranes retain strength and limit dimensional change during heating.

A one-piece annular seal combines sealing and impact damping for filter elements, reducing clamping force and damage risk.

Porous hollow fiber membranes with amino polyol ligands remove boron and silica from ultrapure water while extending filter life.

Controlled sulfonation in dichloroethane with cosolvent and nitrogen preserves polymer molecular weight while lowering sulfonyl chloride residues.

Integral posts formed from the separation layer reinforce flat sheet membranes, resisting pressure and backwash delamination in filtration.

Hydrophilic and hydrophobic hollow fibres separate protein retention from CO2 degassing, improving toxin removal and filter patency.

A gradient cellulose membrane narrows feed-side pores to capture viruses uniformly while easing flow through the depth to reduce clogging and variability.

Preassembled membranes and spacers create sealed feed, retentate, and permeate paths, cutting TFF setup time and contamination risk.

Reusable Prussian blue analogue electrodes selectively remove Ca2+ and Mg2+ from water without consumable salt reagents or high waste burden.

Cooling a lithium-ion conductive membrane and controlling voltage raises 6Li separation efficiency while keeping the process safer than older methods.

Ultrathin 1-3 nm metal-based membranes improve nanopore sequencing by reducing mechanical noise, limiting non-specific interactions, and sharpening signals.

Controlled pH, partial reduction, and crosslinking speed graphene membrane dewatering while preserving mechanical, thermal, and electrical properties.

Preassembled membrane chromatography modules with rigid lines, valves, and sensors cut contamination risk in large-volume purification.

Varying feed spacer geometry along the channel maintains cross-flow velocity, reducing concentration polarization, fouling, and scaling.

An integrated diaphragm pump and membrane enable sterile small-volume protein concentration and buffer exchange with low dead volume.

Anti-tissue factor antibody ligands on a base resin improve selective purification of tissue factor-containing proteins from complex biological samples.

Controlled surface sulfonation improves chlorine, acid, and alkali resistance while preserving membrane strength, water permeability, and salt rejection.

Zone-specific membrane flow and gas control improve nutrient homogeneity in cell culture, supporting stronger growth and product quality.

A buffer layer between the support and discriminating layers limits stress-driven deformation and preserves CO2/CH4 selectivity at high pressure.

Controlling small and large void indices in a zeolite membrane preserves CO2/CH4 separation ratio while maintaining permeance under pressure.

An electrochemical BPMED and carbonate separation scheme regenerates CO2 capture solution from dilute air streams with lower energy use.

Transient ozone pulses create precise graphene vacancy pores for high-CO2 permeance and selective CO2/N2 separation with lower energy use.

Real-time particle counting and non-destructive membrane analysis reveal when semiconductor filters need backwash regeneration or replacement.

Membrane separation and humidification concentrate lithium from liquid streams, cutting energy use and waste before high-purity salt recovery.

A tuned coating surface balances abrasion resistance and water permeability, protecting the polyamide separation layer from wear.

A non-crosslinked water-soluble polymer layer with low-molecular-weight amines boosts CO2 flux and selectivity for lower-cost capture.

Molded permeate channels and matched knife coating raise membrane packing density while preserving robust backwash cleaning.

Steam treatment with transmembrane vapor transfer prevents PVP pore blockage and membrane clumping, preserving sharp hollow fiber separation.

Multiple small through-holes in each well balance single-cell capture with liquid permeability while preventing cells from passing through.

A finned integrated column and spaced-membrane filter enable protein purification, buffer exchange, and concentration with minimal sample transfer loss.

A wet-transfer block copolymer process forms crack-free nanoporous carbon membranes with ultrahigh gas permeance and stable selectivity.

A tortoiseshell-like porous membrane balances puncture strength and attachment pressure while limiting thickness loss during housing assembly.

A water-based ternary blend enables high-porosity poly(arylene sulfide) membranes without hazardous solvents, improving scalable processing.

Inner end elements carry elastomeric seals while outer end elements stay unsealed, simplifying reverse osmosis assembly and reducing cost.

Integrated heat exchangers and vacuum-assisted evaporation raise membrane distillation throughput while cutting water purification energy use.