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

Archive ouverte : Communication dans un congrès

Almokdad, Mohammad | Zentar, R.

Edité par HAL CCSD

International audience. 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.

Consulter en ligne

Suggestions

Du même auteur

Comparative study of stabilization/solidification of dredged sediments with ordinary Portland cement and calcium sulfo-aluminate cement in the framework of valorization in road construction material | Zentar, R.

Comparative study of stabilization/solidification of dredged sediments with...

Archive ouverte: Article de revue

Zentar, R. | 2021-04

International audience

Du même sujet

DETERMINATION OF THE MECHANICAL PROPERTIES OF CEMENTITIOUS MIXTURES WITH SEDIMENTS: EXPERIMENTAL AND NUMERICAL APPROACHES | Abdallah, Amani

DETERMINATION OF THE MECHANICAL PROPERTIES OF CEMENTITIOUS MIXTURES WITH SE...

Archive ouverte: Communication dans un congrès

Abdallah, Amani | 2021-06-29

International audience. Sediment management is increasingly oriented towards valorization processes in several fields. Many researches have been conducted on the characterization of sediments and the possibility to ...

One-step preparation procedure, mechanical properties and environmental performances of miscanthus-based concrete blocks | Jury, Colin

One-step preparation procedure, mechanical properties and environmental per...

Archive ouverte: Article de revue

Jury, Colin | 2022-06

International audience. Concrete blocks prepared with Portland cement and miscanthus-based aggregates were prepared in order to check if the miscanthus genotype may influence their mechanical properties and to perfo...

Evaluation of marine dredged sediment as reactive powder compared to ground basaltic pyroclastic materials for the development of eco-friendly lime-pozzolan binders | Kourtaa, Salim

Evaluation of marine dredged sediment as reactive powder compared to ground...

Archive ouverte: Article de revue

Kourtaa, Salim | 2022-07

International audience. The combination of lime with natural pozzolans for the production of binders in masonry construction dates back to ancient times. These were largely ignored with the industrialization of the ...

Eco-design of a railway traction chain. Eco-conception d’une chaine de traction ferroviaire | Ben Ayed, Ramzi

Eco-design of a railway traction chain. Eco-conception d’une chaine de trac...

Archive ouverte: Thèse

Ben Ayed, Ramzi | 2012-06-25

With the introduction of different environmental standards like ISO 14001, concerns of manufacturers in railway industry are more and more oriented to the design of green products. One important issue when designing such products ...

Ethidium and propidium monoazide: comparison of potential toxicity on <i>Vibrio</i> sp. viability | Copin, S

Ethidium and propidium monoazide: comparison of potential toxicity on Vi...

Archive ouverte: Article de revue

Copin, S | 2021-03

International audience. Significance and Impact of the Study: Ethidium monoazide (EMA) and propidium monoazide (PMA) treatment have commonly been used combined with qPCR to discriminate viable and dead cells. Howeve...

The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminated soils from labile and phytoavailable potentially toxic elements to contribute into a circular economy | Hechelski, M.

The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminate...

Archive ouverte: Article de revue

Hechelski, M. | 2019

International audience. Aided phytoremediation was studied for 48 weeks with the aim of reducing extractable and phytoavailable toxic elements and producing potential marketable biomass. In this sense, biomass of ry...

Chargement des enrichissements...