Water Contaminants TRIZ Cases

Neutralizing Bayer process supernatant liquor with magnesium and calcium solutions precipitates hydrotalcites to capture contaminants.

A chemical mixture of organic polymers and alkaline earth ions stabilizes flocs in municipal wastewater treatment systems.

Grinding calcium hydroxide with lightweight aggregate creates a durable filter material that binds phosphorus, solving structural collapse and washaway issues.

Aluminum sulfate tablets with organic and inorganic binders dissolve consistently in water to precipitate phosphorus from aqueous media.

Sulfamic acid converts nitrite to nitrogen gas, cutting discharge water by 98% while maintaining biological activity.

Onium halides dissolve crude oil in water via micellar structures, eliminating marine toxicity and enabling natural degradation.

Recirculating nitrified effluent into anoxic lagoon zones achieves nitrate levels below 10 mg/L without new infrastructure.

Calcined layered double hydroxide granules with organic binders extend water purification breakthrough time, reducing frequent filter intervention.

Hydraulic injection of colloidal magnesia slurry neutralizes acidity and immobilizes metal cations through in situ layered double hydroxide formation.

A non-aldehyde sulfide scavenging additive reacts with sulfur species to form nonhazardous products.

A surface-reacted calcium carbonate suspension combined with hydrophobic adsorbents removes organic contaminants from water.

Redox-functionalized electrodes selectively capture organic ions through Faradaic binding, enabling reversible release without chemical regeneration.

Reactive metal oxides destroy perfluoroalkyl substances in contaminated foam streams at elevated temperatures, reducing treatment costs and energy consumption.

A treatment system uses electrochemical oxidation to destroy PFAS contaminants in aqueous fluids.

Activated carbon micropowder mixed with an oxidizing agent insolubilizes dissolved manganese for subsequent membrane filtration.

A non-dissolved redox mediator biofilm carrier immobilizes modified graphene oxide on extrusion grade polyethylene particles to accelerate biodegradation.

Divergent electrodes paired with a mixing nozzle generate stable plasma channels that boost specific energy yields by 150 times for pollutant degradation.

Sludge adsorbs phosphonates from membrane filtration rejects, reducing coagulant dosage and enabling agricultural reuse.

Upward flow prevents treatment medium compaction and clogging, extending service life while reducing pressure loss in low water pressure regions.

Hydrophobic deep eutectic solvents extract plastic contaminants from water via phase separation and hydrogen bonding interactions.

Anaerobic Mesotoga bacteria oxidize glucose to produce hydrogen for sulfate-reducing bacteria.

Carbon dioxide pores in PVA-alginate beads improve gas permeability and strength, reducing oxygen consumption during anaerobic ammonium oxidation.

Crystallizing pollutants on carrier surfaces recovers high-purity solids while eliminating low-value sludge generation.

Filtration removes solids from wastewater before fermentation, resolving the contradiction between high productivity and large tank volume.

Plasma treatment breaks down flow assurance chemicals in produced water, enabling reservoir injection while preventing formation damage from precipitates.

Fixed deflector blades swirl water to increase bubble contact time, resolving the trade-off between filtration effectiveness and mechanical complexity.

Lignocellulosic liquor removes hydrogen sulfide from fluids using lignin-derived compounds and hemicellulose sugars.

A nested reactor vessel combines oxygenated and oxygen-depleted zones to enable simultaneous nitrification and denitrification.

Sequential reverse osmosis and ion exchange concentrate PFAS in leachate, enabling plasma discharge to destroy contaminants while reducing treatment costs.

A biodegradable resin base material supports denitrifying bacteria to reduce nitric acid concentration in water purification systems.

A water-soluble capsule containing a liquid treatment solution dissolves in pool water to release active ingredients.

Porous containers deploy biochar to sequester phosphorus and nitrogen, reducing turbidity and enabling soil amendment reuse.

Biochar and olivine dissolve to neutralize acidity and reduce chlorine, cutting costs and carbon footprints.

Segmenting aerobic precipitation from anaerobic redissolution resolves the trade-off between phosphorus recovery rate and crystal separation efficiency.

SnO2-RuO2-Ir composite catalyst reduces oxygen contamination and energy consumption in chlor-alkali cells.

A desulfurization device removes sulfur oxides from discharge gas and forms dilute sulfuric acid using an activated carbon catalyst.

A method precipitates anhydrous sodium sulfate crystals from fly ash using temperature control and chemical promoters.

Segmenting the flotation column into zones with distinct bubble sizes resolves the energy versus separation efficiency trade-off in copper ore processing.

Amorphous aluminum metallic glass particles degrade organic pollutants through surface catalysis.

Sulfur nucleophilic agents deactivate vitamin B1 breakers to reduce polymer viscosity in fracturing fluids.

Cathodic reduction prevents anode polymerization during subsequent oxidation of recalcitrant aromatic pollutants.

Converts industrial waste into hydrotalcite via parameter changes, eliminating costly nitrate reagents and reducing energy consumption.

Replacing physical adsorption with biological degradation, this resin eliminates secondary pollution while treating high-concentration phenolic effluents.

Segmented chambers hold site-specific filter media that removes pollutants while enabling maintenance without dismantling the flow control structure.

Adjustable reflux inlet height in a fluidized bed crystallizer regulates crystal product granularity.

Phagotrophic algae consume microorganisms to produce valuable biomass, eliminating activated sludge disposal costs.

Closed conduits maintain precise foam retention time within a pressurized chamber, enabling five-fold surfactant concentration.