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| Titel |
Characterization of broom fibers for PRB in the remediation of aquifers contaminated by heavy metals |
| VerfasserIn |
C. Fallico, S. Troisi, A. Molinari, M. F. Rivera |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 8 ; Nr. 7, no. 8 (2010-08-25), S.2545-2556 |
| Datensatznummer |
250004938
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| Publikation (Nr.) |
 copernicus.org/bg-7-2545-2010.pdf |
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| Zusammenfassung |
The present level of pollution, increasingly involving ground waters,
constitutes a serious risk to the environment and also to human health.
Therefore the remediation of saturated and unsaturated soils to remove
pollutant materials is more and more frequently required. In the present
paper, the possibility of removing heavy metals by permeable reactive
barrier (PRB) from the groundwater carried out specifically with broom
fibers, is investigated.
Once shown the economic benefits deriving from the use of this plant, a
hydraulic characterization of the broom fiber mass was performed,
determining the permeability and the porosity in correspondence to different
levels of compactness of the fibers.
Having verified the effectiveness of removal of some heavy metals by these
fibers, the results of some experiments, carried out in the laboratory for
this purpose, are shown. These experiments were carried out utilizing broom
fibers obtained in different ways and, limitedly to the considered
pollutants, showed the high capability of these fibers to reduce their
concentrations. The best results were obtained for the broom fibers
extracted by a particular chemical-physical process.
Moreover, the behaviour of this fiber with time was investigated,
determining the kinetic constant of degradation. |
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