Assessment of harbor sediment contamination for a path to valorize dredged material

Bortali, Meryem; Rabouli, Mohamed; Yessari, Madiha; Hajjaji, Abdelowahed

doi:10.1016/j.arabjc.2023.105208

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…facilities, scrap metal recovery sites and foundries and to the ANDRA guide for the removal of radioactive waste(ANDRA 2009).Potential application for the bene cial reuse of dredged sedimentsManaging waste with proper disposal facilities became a crucial challenge(Bortali et al 2023; Miraoui, Zentar, et Abriak 2012b; Slimanou et al 2020;Wang et al 2018). Due to a shortage of land, the cost of waste dumping gradually increases.…”

mentioning

confidence: 99%

Management of dredged marine sediments in southern France: main keys to large-scale beneficial re-use

DORLEON,

Rigaud,

Techer

2023

Preprint

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Each year fifty million cubic meters of marine sediments are dredged in France to maintain and develop harbor activities and sustain the economy of littoral territories. Because of anthropogenic activities in and around harbours, bottom sediments can contain more or less significant amounts of chemical and organic pollutants whose behavior during dredging must be addressed in order to avoid releasing and risks for human and environment. French regulations come to govern the management of dredged marine sediments, considering them ‘safe’ and possibly to be dumped at sea or ‘contaminated’ and needed to be treated on land as waste. These last years, new constraints are pushing towards a management on land. This management is however challenging as few channels are proposed to promote or reuse marine sediments, and elimination appears to be economically and environmentally unsustainable. This study provides an overview of the technical and regulatory aspects related to dredged marine sediment management in France and aims to identify and discuss the limits or barriers of their valorization. Dredged sediments are mainly composed of particles with heterogeneous grain size, some being known for many applications such as building materials and growing media. However, several reasons have been put forward to explain why these particles are not reused when extracted from dredged sediments. Several technical, socio-economic and regulatory obstacles explain the low demand for dredged sediments. This demand can be stimulated by government incentives and a good regulatory framework. National regulations could help streamline the reuse of dredged sediments by standardizing sediment composition tests, removing the "waste" status attributed to dredged sediments and creating a regulated market for dredged sediment-based products, thus creating a promising economic sector.

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mentioning

confidence: 99%

Management of dredged marine sediments in southern France: main keys to large-scale beneficial re-use

DORLEON,

Rigaud,

Techer

2023

Preprint

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Unlocking the potential of Tunisian dam sediment: optimizing zeolite X synthesis via Taguchi and Box–Behnken methods for sustainable resource recovery and versatile applications

Doudey,

Samet,

Tounsi

et al. 2024

Environ Sci Pollut Res

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Management of dredged marine sediments in Southern France: main keys to large-scale beneficial re-use

Dorleon,

Rigaud,

Techer

2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

Fifty million cubic meters of marine sediments are dredged each year in France in order to maintain harbor activities and sustain the economy of littoral territories. Because of anthropogenic activities in and around harbors, sediments can contain significant amounts of chemical and organic pollutants whose behavior during dredging must be addressed in order to avoid releasing risks for humans and the environment. French regulations come to govern the management of dredged sediments, considering them “safe” and possible to be dumped at sea or “contaminated” and needed to be treated on land as waste. In recent years, new constraints have been pushed toward the management of land. This management is, however, challenging as few channels are proposed to reuse marine sediments, and elimination appears to be economically and environmentally unsustainable. This study provides an overview of the technical and regulatory aspects related to dredged marine sediment management in France and aims to identify and discuss the limits of their valorization. Dredged sediments are mainly composed of particles with heterogeneous grain size, some being known for many applications such as building materials and growing media. However, several reasons have been put forward to explain why these particles are not reused when extracted from dredged sediments. Several technical, socio-economic, and regulatory obstacles explain the low demand for dredged sediments. This demand can be stimulated by government incentives and a good regulatory framework. National regulations could help streamline their reuse by removing their “waste” status and creating a regulated market for dredged sediment.

show abstract

Assessment of harbor sediment contamination for a path to valorize dredged material

Cited by 4 publications

References 34 publications

Management of dredged marine sediments in southern France: main keys to large-scale beneficial re-use

Management of dredged marine sediments in southern France: main keys to large-scale beneficial re-use

Unlocking the potential of Tunisian dam sediment: optimizing zeolite X synthesis via Taguchi and Box–Behnken methods for sustainable resource recovery and versatile applications

Management of dredged marine sediments in Southern France: main keys to large-scale beneficial re-use

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