Environmental Engineering Reference
In-Depth Information
10
NanoparticleUsein
PollutionControl
Kathleen Sellers
ARCADISU.S.,Inc.
Contents
10.1. Zero-Valent.Iron.(ZVI)................................................................................ 226
10.1.1. Forms.of.nZVI.................................................................................. 227
10.1.2. Particle.Characteristics..................................................................... 228
10.1.3. Effects.of.Particle.Size..................................................................... 229
10.1.4.
In Situ
Remediation.with.nZVI....................................................... 229
10.1.5. Potential.Risks.................................................................................. 230
10.1.6..Case.Studies...................................................................................... 233
10.1.6.1. Nease.Chemical.Site........................................................... 233
10.1.6.2.Naval.Air.Engineering.Station,.New.Jersey....................... 235
10.2.. Other.Technologies...................................................................................... 236
References............................................................................................................... 243
Given.their.high.reactivity,.it.comes.as.no.surprise.that.some.nanoparticles.ind.use.
in. environmental. remediation. and. related. applications. such. as. wastewater. treat-
ment.and.pollution.prevention..This.use.leads.to.an.apparent.paradox:.in.an.effort.
to.improve.conditions.in.the.environment,.materials.with.uncertain.health.and.envi-
ronmental.effects.may.be.released.into.the.environment..One.authority.[1].notably.
said.about.this.practice:
“We. recommend. that. the. use. of. free. (that. is,. not. ixed. in. a. matrix). manufactured.
nanoparticles. in. environmental. applications. such. as. remediation. be. prohibited. until.
appropriate.research.has.been.undertaken.and.it.can.be.demonstrated.that.the.potential.
beneits.outweigh.the.potential.risks.”
— The Royal Society and the Royal Academy of Engineering, 2004
This. chapter. examines. the. use. of. engineered. nanomaterials. in. environmental.
remediation. and. related. applications. such. as. wastewater. treatment.. It. explores. the.
apparent.paradox.in.doing.so.and.whether,.since.the.British.Royal.Society.and.Royal.
Academy.of.Engineering.issued.their.caution.in.2004,.we.have.learned.enough.to.
demonstrate. that. the. beneits. outweigh. the. risks.. Nano. zero-valent. iron. (nZVI). is.
