Environmental Engineering Reference
In-Depth Information
21
Field Application of the Stabilization
Process for
Arsenic-Contaminated Soil
Myoung-SooKo,Ki-RakKim,andKyoung-WoongKim
CONTENTS
Introduction.......................................................................................................... 451
Arsenic.in.Mining.Area.Soils............................................................................. 452
Arsenic.in.Environment................................................................................. 452
Geochemical.Characteristics.of.Arsenic...................................................... 455
Stabilization.of.Arsenic....................................................................................... 457
General.Principle.and.Mechanisms.of.Stabilization.................................. 457
Stabilizing.Agent............................................................................................. 457
Cement......................................................................................................... 457
Pozzolans..................................................................................................... 458
Lime.............................................................................................................. 458
Leaching.Test................................................................................................... 458
Arsenic.Stabilization....................................................................................... 459
Cement/Lime/Fly.Ash............................................................................. 459
Iron.(hydr)oxides....................................................................................... 460
Field.Application.of.the.Stabilization............................................................... 465
Stabilization.of.Arsenic.in.Mine.Tailings..................................................... 465
Stabilization.of.Arsenic.in.Soil...................................................................... 467
Summary............................................................................................................... 469
References............................................................................................................. 470
Introduction
Soil.is.a.main.component.of.the.environment.and.the.base.of.human.activi-
ties.such.as.agriculture,.construction,.and.so.forth..A.soil.can.be.described.
as.an.open,.multicomponent.chemical.system.that.contains.solid,.liquid,.and.
gaseous. phases. inluenced. by. living. organisms. (Thornton. 1983).. Soils. can.
be.contaminated.with.heavy.metals.derived.from.various.artiicial.sources.
(Adriano. 1986).. Especially,. inorganic. contaminants,. such. as. heavy. metals.
and. metalloid,. have. attracted. interest. from. many. researchers. due. to. their.
451
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