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The use of the Novosol® process for the treatment of polluted marine sediment

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2007
auteur(s) Lafhaj Zoubeir; Saliceto Adeline; Cohen Solal Laurent; Coudray Youan; Huynh TT; Leguen Benoit; Angiuni Frederico
journal (abréviation) Journal of Hazardous Materials (J Hazard Mater)
volume (numéro) 148 (3)
  
pages 606 – 612
résumé The work presented in this article concerns polluted marine sediments. The article is divided into three parts. The first part discusses existing industrial procedures of treatment. The second part introduces the Novosol® process, which was used for the treatment of polluted marine sediments. This process is based on the stabilization of heavy metals in the solid matrix by phosphatation and the destruction of organic matter by calcination. Finally, after a comparison had been made between environmental results obtained on both polluted marine sediments and inert ones, treated sediments were introduced in the production of clay bricks. The results obtained show that the Novosol process leads to the immobilization of most heavy metals and can be considered as an efficient tool for the stabilisation of polluted marine sediment. Thus, the results of physical and mechanical tests as compressive strength and water absorption indicate that performances obtained were comparable to standard brick values. These results confirm that, once treated, polluted sediments can be recycled
mots clés Marine sediment; Heavy metals; Phosphatation; Stabilization; Recycling
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