Membranes TRIZ Cases

Removing carbon dioxide before pervaporation improves condensation efficiency and helps recover volatile organic compounds from fermented liquid.

Membrane filtration removes low-molecular contaminants from dissolved polyolefins while regenerating solvent with lower energy use.

Ionic-strength diafiltration and cross-flow membranes separate native potato proteins from phenolics and glycoalkaloids while reducing fouling.

Clean water from one repurposed dialyzer backwashes another, cutting UF filter cost and reducing extra cleaning resources.

Membrane fractionation isolates aroma-rich retentate while yeast respiration removes ethanol from permeate, lowering ABV with less waste.

A brominated PS-DVB stationary phase separates closely related neutral oligosaccharides from fermentation broth with high purity and industrial scalability.

Convective flow in a nonwoven membrane with multimodal ligands maintains binding capacity at high flowrates for faster biomacromolecule purification.

A 3D MFiX and extended-DLVO simulation replaces trial-and-error membrane synthesis by predicting pore structure and particle capture.

A CO2-selective membrane preconcentrates dilute exhaust gas to cut steam demand, equipment size, and energy use in downstream capture.

Adaptive flow-rate checks end filter integrity tests when measurements are reliable, cutting test time without sacrificing accuracy.

Sequential hydroxide, hypochlorite, and organic peroxide flushing restores porous membrane flux and fouling resistance in wastewater separation.

A thin C-N separation layer on an organopolysiloxane support improves CO2 selectivity and permeability at low concentrations and moderate pressures.

Intermittent gas discharge from chambered risers cleans immersed membranes while lowering air use and reducing inlet aperture occlusion.

Stretching connected hollow fiber webs fractures the fiber walls into open-celled pores, enabling simpler low-cost filtration and separation.

Using whey-derived lactose, this case replaces distillation with reverse osmosis to separate ethanol and enrich galactose with lower energy use.

Intermittent gas release through a barriered flow path defouls immersed membranes while reducing aeration gas use and operating cost.

A hinged base-and-lid cylinder seals hollow fiber bundles without wrapping, cutting loops, kinks, fractures, and process complexity.

A water-vapor sweep and heat transfer module curb water loss in hydrophilic membranes, sustaining CO2 selectivity and lowering energy use.

A multilayer membrane uses a thin polysiloxane gutter and protective layer to raise gas permeance while limiting liquid leaching and defects.

A protective shield blocks direct droplet paths in a vacuum filtration head, reducing membrane retro-contamination and false positives.

A surfactant-impregnated cellulose membrane improves wetting and recovery of Legionella and other microorganisms without complex rinsing or PCR steps.

A horizontal hydraulic cylinder and above-water RO layout improve maintenance access while preserving wave-powered desalination.

Separate feed and discharge channels shorten backwash flow paths, improve cleaning uniformity, and reduce pressure loss in filtration modules.

pH-shift washing desorbs and solubilizes proteins from fermentation solids, improving recovery without heavy dilution or complex batch steps.

A two-stage FO and membrane distillation process concentrates water-organic feed solutions while controlling solvent ratio and reducing solute loss.

Electrocoagulation captures and reduces dilute aqueous gold into nanoparticles, then nanofiltration separates high-grade elemental gold from iron sludge.

Controlled host absorption and desorption creates nanoporous PPO films with much higher surface area while retaining solid film handling.

Integrated endcap sensors and a LoRa transmitter monitor pressure, flow, conductivity, and fouling in sealed spiral wound modules.

Cationic surfactant micelles bind PFAS so ultrafiltration can remove even short-chain compounds with lower energy and less waste.

A single-inlet distributor uses tuned capillary lengths to balance center fluid flow across spinneret nozzles and save installation space.

Porous expanded polyethylene balances low acoustic loss with immersion protection by tuning thickness, porosity, and tensile modulus.

A fluorinated polyimide composite membrane maintains CO2 permeability and selectivity by resisting densification in low-impurity mixed gases.

A low-pressure-loss flow passage spacer helps spiral membrane elements maintain permeation flux by reducing pressure drop near the central tube.

An upward-sloped lower edge lets fibers and hair escape with aeration-driven flow, preventing stagnation and membrane fouling.

A staged process of gasification, molecular sieve adsorption, and ultrafiltration removes metal ions and particles from electronic-grade ammonia water.

Real-time fluid sensing and shear-stress modeling guide 3D-printed RO membrane design to improve purity, lifespan, and maintenance efficiency.

Using PLA with DMSO and deep eutectic solvents, this case shows how NIPS membranes gain porosity and oil rejection with lower solvent harm.

A co-extruded polyolefin substrate and PMP-polypropylene skin improve adhesion, tensile strength, porosity, and gas separation selectivity.

A phase-inverted polyimide membrane balances pore size and hydrophobicity to raise permeate flux while maintaining stable salt rejection.

A tailored epoxy tube sheet resists elution and cracking in ethanol vapor at high temperature, helping hollow fiber modules stay intact under pressure.

A redox-polymer electrodialysis setup separates long- and short-chain PFAS in one flow path, cutting energy use and fouling.

Swelling a macroporous affinity membrane before ligand coupling enables high biologics binding at short residence times with low backpressure.

A polymer-blend hollow-fiber membrane uses gradient pores to retain viral contaminants while maintaining antibody throughput in biopharmaceutical filtration.

A tuned zeolite membrane separates ammonia from hydrogen and nitrogen at high temperature with stable selectivity and permeability.

An elastomeric potting compound forms the sealing ring during assembly, simplifying hollow-fiber exchanger manufacture while preventing leaks and stagnation.

Hydrophobic nanoporous powders replace large membranes to convert osmotic pressure into hydraulic energy with higher power density.

High-elastomer membrane composition improves mash filter durability, crease resistance, and alkaline cleaning stability in brewing.

A selective membrane removes tar from the butadiene extraction solvent loop, cutting fouling and solvent loss while maintaining recovery efficiency.

A hydrophobic porous membrane concentrates peptide and protein solutions at low temperature while preventing wetting and preserving recovery.

A guanidine mobile carrier in a selective polymer layer boosts CO2 permeability and CO2:N2 selectivity for membrane carbon capture.