Environmental Engineering Reference
In-Depth Information
FAST-ACT
Reactive.nanoparticles.(unspeciied.composition).
applied.as.a.powder.shaken.onto.surfaces.or.misted.
into.the.air..Various.formulations.for.different.
applications.
Reportedly.destroys.nerve.agents.via.
hydrolysis.and.dehalogenation;.
neutralizes.acids;.absorbs.spilled.organic.
compounds.
Full.scale
[50]
Nanocrystalline.zeolite.
catalysts
Nano-scale.zeolites.(aluminosilicate.molecular.sieves).
can.catalyze.the.reduction.of.certain.pollutants..Some.
zeolites.can.also.adsorb.certain.contaminants.
Catalytic.reduction.of.NO
2
.in.air..
Adsorption.of.volatile.organic.
compounds.from.air.or.water..Other.
applications.
Varied
[51,.52]
Treatment by separation
Iron.oxide.(magnetite).
nanoparticle.sorbent
Iron.oxide.nanoparticles.sorb.contaminants.from.water,.
then.are.removed.from.water.column.via.magnetic.
separation.
Arsenic,.luoride,.phosphate,.Cr(II),.
Cu(II),.Ni(II)
Bench.scale
[53-56]
Dendritic.nanoscale.chelating.
agents
Dendritic.polymers.(nanoparticles.ca..220.nm).chelate.
metal.ions.to.enable.their.removal.from.water.by.
ultrailtration..Also.proposed.for.use.in.removing.
metals.from.soils.
Metal.ions.(e.g.,.Cu(II))
Bench.scale
[57,.58]
Functionalized.titanium.dioxide.
nanoparticles
Functionalized.nanoparticles.(FNP).created.by.coating.
40-60.nm.TiO
2
.particles.with.organosilane.monolayer.
terminating.with.an.ethylenediamene.(EDA).ligand;.
FNPs.treated.with.Cu(II).to.create.a.Cu(EDA)
2
FNP.
that.can.bind.certain.anionic.contaminants.in.water.
Pertechnetate.(Tc-99)
Bench.scale
[59]
Functionalized.layered.silicates
Thiol-functionalized.silicate.particles.adsorb.heavy.
metals.
Metal.ions.[Hg(II),.Pb(II),.Cd(II)]
Bench.scale
[60]
Carbon.nanotubes
Carbon.nanotubes.used.to.sorb.contaminants,.similar.to.
activated.carbon..(Note:.Some.of.the.relevant.research.
has.focused.on.the.use.of.nanotubes.as.adsorbent.
materials.in.analytical.chemistry,.rather.than.in.waste.
treatment.
per se
.)
Cd,.Mn,.Ni,.Pb,.dichlorobenzene.and.
other.organic.compounds
Bench.scale
[61-66]
