Evaluation Of Alternatives In The Remediation
Of A Former Explosive Manufacturing Site
Author(s)
R. A. García-Delgado, J. Grima & D. Barettino
Abstract
A case study on the remediation of a former explosive manufacturing site is
presented. On the basis of the sampling and characterization results, the
contaminants present were pyritic ashes and nitroaromatics (mainly
trinitrotoluene and dinitrotoluenes). Waste was classified according to toxicity
which was higher in the fraction contaminated by TNT and DNTs. The adopted
remedial action consisted in the excavation and landfilling of the contaminated
material. The toxic waste was sent to a security landfill and the rest was buried in
a containment unit excavated at the site. In some cases, the application of
treatment technologies to separate/destroy the nitroaromatics and reduce the
volume and toxicity of the waste could have in the end resulted in lower cost. An
evaluation of two such alternatives, thermal desorption and soil washing, is
presented. Suitability of these remediation treatments for this particular case is
discussed and some calculations presented including a computer model which is
used to evaluate steam stripping performance in the remediation of these
contaminants.
Keywords: brownfields, nitroaromatics, trace and heavy metals, steam stripping,
soil washing, remediation.
1 Introduction
Treatment or removal of contamination is fundamental to the redevelopment of
former industrial land. Furthermore, increasing legislative and environmental
pressures are being applied to landowners and users of land in Spain. On
occasions, remediation projects are affected by circumstances other than the
technical / scientific ones. Among them we can cite time constraints, political
Keywords
brownfields, nitroaromatics, trace and heavy metals, steam stripping,
soil washing, remediation.
Related Book
Other papers in this volume
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