Assessing the toxicity of virgin aggregates leachate versus dredged sediments leachate in backfill application - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Assessing the toxicity of virgin aggregates leachate versus dredged sediments leachate in backfill application

Résumé

The replacement of virgin aggregates has been embedded into several environmental strategies around the world. The high demand for these materials leads to several substitutions with different materials from various sectors. Waste valorization is one of these alternatives. However, the use of such material has several environmental restrictions due to the fact of containing a few distinct pollutants (Ex: As, Ba, Cd, Cr, Cu, Hg, Pb, Zn...). These pollutants can lead to toxicity impacts on humans and freshwater. In France, non-submersible dredged sediments have been used in different applications (backfill, concrete, and others). As a consequence of being contaminated with heavy metals and other pollutants, sediments usage as backfill is constricted by certain environmental requirements (SETRA, 2011). This paper aims to assess the toxicity beyond using dredged sediments in backfill application as an alternative material for virgin aggregates. Comparing both material leachate effects on freshwater ecotoxicity and human health toxicity. Toxicity assessments were based on the USEtox impact assessment method (Bijster et al., 2018). Relying on life cycle assessment as a tool to evaluate the impacts beyond these two materials.

Domaines

Matériaux
Fichier principal
Vignette du fichier
P17_3367-Nomad_article-13563-1-4-20220905.pdf (632.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03880938 , version 1 (01-12-2022)

Identifiants

  • HAL Id : hal-03880938 , version 1

Citer

Mohammad Almokdad, R. Zentar. Assessing the toxicity of virgin aggregates leachate versus dredged sediments leachate in backfill application. NOMAD 2022 - 4e conférence internationale francophone Nouveaux Matériaux et Durabilité, IMT Mines Alès; LMGC; LIFAM, Nov 2022, Montpellier, France. ⟨hal-03880938⟩
57 Consultations
25 Téléchargements

Partager

Gmail Facebook X LinkedIn More