Selective contaminant removal

Voltek’s SelecSorb systems are specialty systems custom designed for selective contaminant removal from drinking water, groundwater, and industrial wastewater.

Systems are available as disposable cartridges for low flow conditions as well as regenerable systems for high flow conditions.

Contaminant
Typical Source
Media Used
Arsenic
Well, surface, tap.
Nano structured TiO2 granules offer very high capacity and low leakage.
Iron and manganese
Well, surface, tap.
Atomic level “nano-templates” on the surface of small ceramic-polymer spheres precipitate dissolved Fe++ and Mn++ and then removed by filtration.
No oxidizing agents required.
pH adjust
Well, surface, tap.
Mineral media absorbs acids and neutralizes bases.
Hardness
Well, surface, tap.
“nano-templates” of catalytic material on the surface of small ceramic-polymer spheres transform dissolved CaCO3 to a crystalline form. The nano-crystals are relatively insoluble, effectively isolating the CaCO3 from the water chemistry and anything the water contacts.
Alkalinity
Well, surface, tap.
Immobilized weak acids on polymer beads neutralize bases by selectively exchanging alkalinity associated cations with protons.
Nitrates
Well, surface, tap.
Immobilized Tri-Butyl Amines are selective for nitrates.
Chlorine
Tap.
High efficiency reducing medium.
Cryptosporadium Cysts
Surface, tap.
Hollow fiber ultrafilter cartridges.
Bacteria
Tap, well, surface.
Ozonation systems.
Flourides
Tap, well, surface.
Activated Alumina activated with sulfuric acid activation.
Cadmium
Well, surface.
Immobilized imminodiaceticacid on a polymer backbone.
Mercury
Well, surface.
Immobilized thiol group precipitates mercury as a sulfide within a polymer matrix.
Radioactive material
Well, surface.
Immobilized sulfonic groups bind tightly with contaminant.
Hexavalent Chrome
Groundwater.
Crosslinked, biodegradable, bio-polymer binds tightly to chrome.
Heavy Metals (Cu, Ni, Cd, Zn)
Groundwater.
Crosslinked, biodegradable, bio-polymer binds tightly to transition metals.
Selenium
Agricultural runoff, groundwater.
Fe(OH)2 on a crosslinked polymer provide absorption of selenium in the matrix.
Perchlorate
Groundwater.
Catalytic process generating no waste is under development. Currently offered is a specialty ion exchange resin developed by ORNL binds tightly to ClO4 ion.
Nitrates
Agricultural runoff, groundwater.
Catalytic process generating no waste is under development. Currently offered is an immobilized tri-butyl amine on a polymer backbone selective to nitrates.
Mercury
Groundwater.
Immobilized thiol group precipitates mercury as a sulfide within a polymer matrix.
Boron
Agricultural runoff, groundwater.
Specialty polymer selective to boron. Regenerant can be recycled as boric acid.
Ammonia removal
Aquaculture ponds, Aquariums, agricultural runoffs, groundwater.
Natural mineral with high selectivity for ammonia.
Heavy Metals (Cu, Ni, Cd, Zn)
Wastewater.
Chelating type ion exchange resins, selection based on solution pH and other constituents.
Gold recovery
Plating rinses.
Immobilized Quarternary amines complex gold salts.
Palladium recovery
Plating rinses.
Two step process first conditions solution, then removes Pd as a complex.
CN removal from rinses
Plating rinses.
Immobilized Quarternary amines.
CuCN removal from rinses
Plating rinses.
Immobilized Tertiary amines.
CdCN removal from rinses
Plating rinses.
Immobilized Tertiary amines.
FeCN removal from rinses
Plating rinses.
Immobilized Tertiary amines.
Ammonia removal
Aquariums.
Naturally occurring mineral complexes with ammonia strongly.
Alkalinity removal
Ground, well, tap.
Immobilized weak acids on polymer beads neutralize bases by selectively exchanging alkalinity associated cations with protons.
Oxygen removal
Condensate loops, boiler feed.
Immobilized bi-sulfite ions scavenge trace amounts of oxygen from water to form sulfates.
Hardness removal
Seawater.
Immobilized carboxylic, and aminophosphonic groups show high selectivity for calcium in high salt concentration.
Ammonia removal
Aquaculture, process water.
Naturally occurring mineral complexes with ammonia strongly.
Iron removal
Process piping.
Atomic level “nano-templates” on the surface of small ceramic- polymer spheres precipitate dissolved Fe++ and then removed by filtration. No oxidizing agents required.
Demineralization, deionization
Well, surface, tap.
Capacitive Deionization-Electrodeionization
Chlorine removal
Tap.
Activated carbon filters.
Peroxide (HOOH) removal
Process Water.
Ozonation systems.
Silica removal
Process water loop, surface water.
Color removal
Process Water.
Dependent on nature of color forming substance.
Oil removal
Process Water.
Ultrafiltration systems.
Silver recovery
Process Water.
Immobilized complexing agent.
Gold recovery
Process Water.
Immobilized Quarternary amines complex gold salts.
Palladium recovery
Process Water.
Two step process first conditions solution, then removes Pd as a complex.
Contact us
Voltek Water is an Endeavour company.
© Copyright Voltek Water 2022