Membranes TRIZ Cases

Amine-functionalized metal oxide grafted to PVDF improves membrane wettability and boosts rejection of heavy metals, salts, and organics.

Segmented perfusion and gas-transfer zones with sensor-guided flow control improve mixing uniformity and cell culture conditions.

A selective membrane concentrates alkaline-earth ions to form carbonates for CO2 immobilization while reducing energy use and membrane scaling.

Hierarchical cement membrane texturing enables high-flux produced water filtration while removing silt and emulsified oil with strong cycle durability.

Multiple membrane stages with different solute permeability raise concentration limits while lowering pressure, fouling, and separation cost.

Ammonium bicarbonate forward osmosis cuts desalination energy use by pairing osmotic separation with hydrophobic membrane recovery.

RO brine is reused as the electrolysis medium to produce uncontaminated hydrogenated drinking water with less waste and lower power use.

Tunable biocompatible membranes enable continuous blood purification without dialysate fluids or pumps while supporting implantable scaffold-based filtration.

Controlling pore angle and layered pore size cuts permeation resistance and suppresses clogging in ceramic separation films.

A controlled porous ceramic layer cuts permeation resistance and clogging while preserving separation performance in layered membranes.

Coagulant and cationic flocculant pretreatment removes broth impurities before membrane filtration, improving flux and membrane life.

Directional water evaporation enriches PEG in the dense PIM-1 membrane layer, boosting CO2 selectivity without sacrificing permeation.

Multi-inlet vortexing and TFF remove organic solvent before membrane coating, improving nanoparticle purity, size control, and monodispersity.

Alternating weld projections and recesses stop burnt bits from sticking during flat membrane thermal welding, preserving sealing and cleanup.

Tapered-pore crossflow filtration captures circulating tumor cells while letting red blood cells pass, limiting fouling and hemolysis.

Ultrasonic treatment increases microporous membrane surface porosity to raise filtration throughput while preserving strength and separation.

A covalently bonded nanowire intermediate layer enables an ultrathin RO desalting film that raises water flux with little loss in salt rejection.

Using a brackish water RO or NF membrane with a narrow permeate carrier sustains flux at 50-120 bar and pushes retentate beyond 130 g/L.

A PDA and Ag/PDA-coated polysulfone membrane improves anti-fouling while rejecting EBT dye and allowing divalent salt passage.

Multi-stage nanofiltration and crystallization recover magnesium chloride and calcium sulfate from brine with lower energy use.

Bonding nanofiber porous layers before carrier removal strengthens the film, reducing separation damage, inspection time, and manufacturing cost.

Rotating semipermeable discs speed diafiltration of cross-linked hyaluronic acid gels while removing BDDE residues and limiting contamination risk.

Preconfigured membrane chromatography modules with integrated piping and automated valves cut assembly, dead volume, and contamination in large-volume separation.

Chemical linkages between graphene oxide sheets keep d-spacing small, resist swelling and fouling, and maintain separation across harsh conditions.

Mixed fluorocarbons are separated by molecular diameter through a sol-gel amorphous silica membrane, avoiding energy-intensive distillation.

A short-path prevention body redirects liquid into the hollow fiber bundle, improving flow uniformity and high-rate deaeration.

An asymmetric hollow fiber membrane uses a dense inner surface and coarse outer structure to separate viruses from proteins with high permeability at low pressure.

Time-course analyte diffusion across a semipermeable membrane enables faster, more accurate relative fu ratio measurement for highly protein-bound compounds.

Segmented hollow fiber zones adjust surface area, fiber length, and gas flow to improve ECMO CO2 removal while reducing oxygen consumption.

A nanometer-scale hydrophilic graft layer on polymethylpentene hollow fibers limits protein and platelet adhesion while preserving gas permeability.

Semipermeable compartments control filtrate and ancillary-agent flow to limit hypoxia, reduce immune response, and improve implanted cell survival.

Reinforced inlets and stiffened permeate sheets keep filtration channels open, improving flux, cleanability, and cassette life under high solids loads.

Long-wavelength photoinitiators plus a co-initiator enable fast curing of aromatic ion exchange membranes with lower toxicity and cost.

Replacing non-conductive binders with ionomer coatings raises wafer conductivity, supports water-splitting, and cuts EDI desalination energy use.

A CO2-selective membrane removes CO2 before H2 membrane recovery from PSA tail gas, improving H2 recovery and reducing membrane area.

Capillary-driven solvent removal forms a uniform isoporous copolymer membrane without solvent exchange, improving flux and sharp size exclusion.

A multilayer ionic polymer membrane boosts water dissociation, limits ion recombination, and improves strength with lower electrical resistance.

Fatty chemicals bind PFAS into filterable insoluble complexes, boosting loading capacity while cutting waste volume and incineration energy.

Specific urea, carbamate, and ethylene glycol ratios enable a solvent-free polyurethane membrane that stays waterproof, breathable, and dry to the touch.

De-supersaturation between RO stages precipitates sulfate solids, limits scaling, and enables higher brine concentration with clean permeate reuse.

A sample line, ejector pump, and porous hydrophilic barrier detect hydrogen crossover in separator vessel return streams with low power use.

A derivatized polydopamine coating on porous polymer membranes removes both metal ions and particulates from semiconductor process chemicals.

A gate-all-around or multi-gate ion exchange membrane creates ion depletion in microchannels to separate dilute water with lower energy and maintenance.

Normalized operating indicators remove environmental and hardware variation to predict membrane cleaning and replacement more reliably.

Adjustable compression creates a pore-size gradient and multidirectional flow to limit clogging and keep filtration throughput consistent.

Membrane filtration separates plastic degradation products from solvents and catalysts without thermal side reactions, enabling catalyst reuse.

Vacuum-assisted looped hollow fibers remove gas from server cooling fluid across varying flow rates without adding pressure loss.

Nanofiltration removes 1,4-dioxane from surfactant pastes while retaining active content, avoiding the cost and energy burden of vacuum stripping.

Silk fibroin solutions and powders form protective coatings that extend perishable shelf life and improve biodegradable packaging.

Series-flow electrochemical stacks recover heat from oxygen-reduced gas to preheat inlet gas, cutting energy use while producing 99.9%+ oxygen.