Water Contaminants TRIZ Cases

Selective laser sintering of the thermoplastic support resolves manufacturing difficulties while maintaining high Faradic yields and current densities.

An anionic semipermeable membrane features a cationic compound adhered to its surface to attract and retain perfluoroalkyl substances.

A process uses nanofiltration to separate sulfate from chloride in wastewater streams before crystallizing high-purity sodium salts.

A froth flotation apparatus introduces gas into water to concentrate amphiphilic contaminants in a rising foam layer.

A wastewater treatment system uses an anaerobic upflow filter and recirculating media filter to reduce biological oxygen demand.

A cylindrical fluid device uses an ultrasonic element to transmit acoustic waves along the flow axis for particle collection.

Autotrophic biological nitrogen removal treats mature landfill leachate without adding organic carbon.

A self-regenerating bioreactor garden treats household wastewater using native plants to break down nitrogen and phosphorus compounds.

A supercritical water mixing apparatus precipitates dissolved metals directly from wastewater streams.

Metal salts react with ammonia in supercritical waste liquid to form precipitates, enabling cost-effective recycling without additional equipment.

Ion removal system employs fine bubbles to adsorb and crystallize metal ions, resolving insufficient removal effects in hard water.

Soluble scavenger formulations resolve slow reaction rates of insoluble reactants by enabling rapid molecular-level phosphate binding.

Encapsulated reactants prevent clogging from rapid dissociation by delivering oxidants via controlled release mechanisms.

Replacing aluminum salts with a composite of inorganic particles, natural polymers, and polysilicic acid removes microplastics while eliminating toxic residues.

Tremolite seeds induce crystallization while tubular membrane filtration removes precipitates, achieving 99% fluorine removal and reducing sludge moisture.

Modified amine-aldehyde resins selectively bind solid contaminants and ionic species, resolving inadequate refinement purity in froth flotation.

Recycles sludge between reactors to maintain methanogen stability while removing excess sodium and phosphorus.

A spray drying system shares one device among multiple flue gas ducts via a unified exhaust gas introduction line.

Grafted ammonium groups boost chitosan solubility and cationic charge to remove colloidal oils from wastewater.

Ultrafiltration and mechanical vapor recompression recover chemical compounds from industrial wastewater streams.

Adjusting solution acidity and adding cationic polyelectrolytes removes niobium and titanium co-constituents, preventing equipment clogging.

Anaerobic fermentation wastewater treatment splits liquid to mix nitrate and propionic acid, eliminating external carbon source requirements.

Ozone coagulation filtration removes barium strontium and organic contaminants from drilling waste water for reuse.

Opuntia ficus indica mucilage replaces aluminum sulfate to accelerate arsenic settling and lower purification costs.

A granulated water purification agent mixes plant powder with a polymer coagulant to enable stable automated feeding.

Precipitated ferrous sulfide remains in COPR deposits to convert toxic Cr(VI) without acid addition or groundwater washout.

A self-regenerable fibrous adsorbent composed of PAN and PMMA polymers with immobilized amine and hydroxyl functional groups.

A FeS-based pH-responsive material releases sulfide ions to precipitate copper ions from micro-etching wastewater.

Adding specific bacterial strains consumes organic acids, reducing filamentous growth and improving sludge settling.

Diamond-coated pin electrodes in a tubular plasma reactor remove contaminants from water without toxic byproducts or complex cooling systems.

Trivalent iron co-precipitates chromium and molybdenum in stainless steel slag wastewater, reducing salt load from repeated acid-base adjustments.

Hydrophobically modified silicon-containing polyamines reduce aluminosilicate scale formation in industrial process streams.

Immobilized laccase catalyst enhances degradation of hard-to-degrade organic matter and enables reuse, solving matrix saturation issues.

An integrated system combines reverse osmosis with retentate treatment and recycle to remove selenium from wastewater.

Segmented chambers use activated carbon and anti-scalant media to remove chlorine and prevent scale, maintaining consistent flow while reducing clogging risks.

Asymmetric concentric structure resolves insufficient metal capacity by creating higher current density.

Separates ion generation and precipitation zones with hyper-turbulent flow to eliminate heavy metal removal fouling.

A water treatment agent generates manganese (V) intermediates for rapid organic pollutant removal.

Macrocyclic hosts use localized electropositivity to sequester persistent sulfonates and carboxylates from aqueous systems.

Zerovalent cerium biochar beads degrade phenylbutazone via persulfate activation, reducing toxicity without external energy input.

Aramid nanofiber thin film composite membranes resolve the selectivity-permeability trade-off by achieving high water flux and solute rejection.

Rough-surfaced flow deflectors stabilize partial nitritation in low-ammonia sewage, reducing organic matter consumption and sludge yield.

Triazine mediates tannin reaction to reduce formaldehyde below 1,000 ppm without crosslinking.

Stripper tower separates VOCs from feed water, while heating stage incinerates contaminants and recirculates exhaust gases to drive evaporation.

Non-degradable colloidal materials permanently embed in aquifers to increase hydrophobicity.

Evaporating tube crystallizer atomizes wastewater with hot flue gas to prevent corrosion.

A floating platform cycles water through a biofilm substrate via a pump and drain to convert ammonia into gaseous nitrogen, avoiding permanent fixtures.

Metal-free carbon catalysts degrade haloalkenes and nitro-compounds via sulfide reduction, avoiding metal poisoning and secondary contamination risks.

Electrochemical oxidation with magnesium salt destroys cyanotoxins, avoiding salt deposition and increased salinity.