SURICATES - Sediment Uses as Resources In Circular And Territorial EconomieS

Project Summary

The project aim is to increase sediment reuse for erosion and flood protection. We will provide authorities, port and waterway managers and erosion experts with new large scale solutions for sediment reuse in NWE ports, waterways and coastlines.

Climate change, erosion and flood risk increase require greater mitigation measures, consuming high volumes of natural resources. However, dredged sediments are a problem for EU ports/waterways providing navigation access with 200 million m3/y (80 million tonnes dry weight) generated. Increased social and environmental pressures show the critical need for new solutions to maintain and develop activity. Currently, more than 99% of EU marine sediment dredged is dumped at sea/managed as waste, with only 1% (800 000 t/year) reused. In SURICATES, 220 000t of sediment will be used in 4 new solutions as raw material to build resilient flood/erosion protection systems. We target an increase in the number of sediment reuse projects in NWE to drive sediment reuse to 1.3 Mt/y after 5 years, and 2.3Mt/y after 10 years in the EU. From the CEAMaS project national/global potential interest in reuse strategies demonstration, we will provide support for erosion/flood risk market development with local impact optimisation of sediment reuse. We will implement tools and methods for global impact quantification at regional scale using social, economic, employment and environmental modelling and we will test eco-innovative techniques in real-life conditions providing long term impact evaluation and guidelines for replication: riverbank strengthening, regeneration of harbour/river banks and beach nourishment.

Pilot implementation with long term impacts on territories is planned within the project for UK and NL. Networking activities for dissemination and operational guidance illustrated by 3 new projects for Fr, UK and IE will be developed and shared with local, national and EU authorities for implementation on project completion.

Project Partners

  • Munster Technical University

    1 Rossa Avenue, Bishopstown

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  • Deltares

    1 Boussinesqweg
    2629 HV

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  • University of Strathclyde

    18 Richmond Street
    G1 1XQ
    United Kingdom

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  • Port of Rotterdam

    909, World Port Center (WPC) Wilhelminakade
    3072 AP

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  • University College Cork, National University of Ireland

    1 College Road

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    23 avenue de la Créativité
    Villeneuve d'Ascq

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  • Bureau de Recherches Géologiques et Minières

    3 avenue Claude Guillemin

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  • British Waterways T/A Scottish Canals

    2 Applecross Street
    G4 9SP
    United Kingdom

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  • Association pour la Recherche et le Développement des Méthodes et Processus Industriels

    60 boulevard saint Michel

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  • TEAM2

    1 rue Paul Bert

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  • Université de Lille Sciences et Technologies

    UFR de géographie et d’Aménagement Avenue Paul Langevin, Cité Scientifique
    Villeneuve d’Ascq

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Lead partner

Organisation Address Email Website
Université de Lille Sciences et Technologies UFR de géographie et d’Aménagement Avenue Paul Langevin, Cité Scientifique
Villeneuve d’Ascq
Name Contact Name Email Country
Munster Technical University Joe Harrington Ireland
Deltares Hans Groot Netherlands
University of Strathclyde Richard Lord United Kingdom
Port of Rotterdam Marco Wensveen Netherlands
University College Cork, National University of Ireland Gerry Sutton Ireland
IXSANE Tristan Debuigne France
Bureau de Recherches Géologiques et Minières Aline Coftier France
British Waterways T/A Scottish Canals Alasdair Hamilton United Kingdom
Association pour la Recherche et le Développement des Méthodes et Processus Industriels Mahfoud Benzerzour France
TEAM2 Moïse Vouters France
Ecole Nationale Supérieure Mines-Télécom Lille Douai
Syndicat mixte de portage du SAGE Rance Frémur



Infrastucture sediments: from resource to territorial re-use

, Saint-Malo, France

THE CONFERENCE IS PUT ON HOLD AND WILL NOT BE HELD IN SEPTEMBER. We invite you to discover what the St. Malo Sediments conference, entitled Infrastructure Sediments: From Resource to Territorial Re-use, has in store for you. We are confident that with your help, we will be able to make this event a success, either through the presentation of research papers or through the presentation of technological advances or feedback. We are expecting you at the Palais du Grand large in Saint-Malo for a two-day conference on 14 and 15 September 2020 (limited to 100 places), then for a one-day excursion (optional) on 16 September 2020 (limited to 30 places).
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Suricates project aim is to increase sediment reuse for erosion and flood protection. Currently, of the 100–200 million m3 a year (i.e. 40–80 mln. tonnes dry weight a year) of dredged sediments in Europe 99% is dumped at sea and/or managed as waste. Zooming in on North West Europe (Netherlands, Germany, France, Flanders) the yearly dredged amount of sediment is 30–50 mln. m3 a year (or roughly 12–20 mln. tonnes dry weight a year).

Suricates project has delivered, tested and operated:

1 Pilot application in the Netherlands:

  • Objective: The yearly dredged volumes of sediments fluctuate between 2 and 4 mln. tonnes of dry weight at for Port of Rotterdam. In this pilot application the objective is to reallocate 200,000 tonnes of dry weight sediment which is approximatively 5-10% of the yearly dredging volume for the port. This beneficial use case represents an increase of sediment reuse with a factor 5-10 as compared to the ‘business as usual’ scenario.
  • Final delivery: 1 eco-innovative solution saving 219,514.00 tonnes of raw material, with proven upscaling potential to other sites. This is adding 27.5% of current annual sediment amount reused within the EU.

3 innovative processes in Scotland:

  • Objective: Scottish Canals is innovating in beneficial use of dredged sediment with the implementation of three applications of a target value of 20,000 tonnes of dry weight sediment including: 1 concrete and sediment application, 2 bio-engineering of top soils with sediments and 3 pozzolanic application.
  • Final delivery: 1 concrete application (4 tonnes) for coastal defence against marine erosion at Bowling river pilot site, 1 bio-engineering application (880 tonnes) for topsoil production at Bowling river trial site, 1 pozzolanic application (2 tonnes) for river bank restoration at Stockingfields (Glasgow) and 1 concrete and sediment application (15,480 tonnes) at Lagan. The initial tonnage objective of 20,000 was not reach (i.e. 16,366 tonnes) by the end of the project due to a combination of sediment properties / availability within the dredging campaigns and for the duration of the Suricates project. Nevertheless, all innovative processes were implemented and tested successfully.

1 Circular economy application in Brittany:

  • Objective: Improving the La Hisse dehydration site (Rance Estuary, Brittany, France) to increase circular economy activity with sediment and local stakeholders with a target value of 7,000 tonnes dry weight sediment.
  • Final delivery: 5 topsoil applications of La Hisse processing dredged sediments have been operated for a total of 46,441 tonnes for agricultural beneficial use against crop field erosion at Plouër-sur-Rance, Saint-Hélen, Pleudihen-sur-Rance , Lanvallay and Corseul (Brittany France). 1 sand application from dehydrated dredged sediment has been use for a dyke trial and a dry-stone wall trial at Lahisse site (Saint-Samson-sur-Rance, Brittany, France) for a total of 28.35 tonnes. 1 topsoil application for a dyke trial and a agricultural soil trial operated at Lahisse site (Saint-Samson-sur-Rance, Brittany, France) for a total of 41 tonnes.

1 dehydration mobile equipment:

  • Objective : This pilot equipment has been designed to be tested on site in Scotland following dredging operations to speed up sediment dehydration in order to make it available for reuse applications just after dredging campaigns. Considering (i) sand, silt and clay contents may vary widely and locally, irrespective of the canal, (ii) particle size is a key criterion for cement applications, (iii) organic matter contents are key to select optimal application, the main requirement to provide material from sediment is to separate fine fraction (silt and clay enriched in organic matter), sand and gravel fractions (mainly mineral matter).
  • Result: The Dehydration mobile equipment has been built and operated in Falkirk (Scotland) in June 2022 and previously in France (Voies Navigables de France).

1 3-dimensional method for local economic and social acceptability:

  • Objective: Development of an integrated tools linking direct and global cost/benefits based on the PRISMA project output for direct cost optimisation and on the CEAMaS (previous Interreg NWE project) for global cost/benefits. Tools tested and used for new project cost evaluation.
  • Results: The integrated tools allow an overview of the different potential impacts of specific sediment management approaches in a site-specific context and allow, as appropriate, comparison of the ‘Business as Usual’ scenario with one or more ‘Beneficial Reuse Options’. The integrated tools allow the user to assess different stages of the sediment management decision making process individually or together as a continuous process from designing and optimising the sediment mix to a wider economic impact assessment. The tools have been validated on a number of real projects across all partner countries using real project data. SedEcon validation results were satisfactory, given the complexity of the projects which included, in addition to dredging, beneficial use management options as complex as land reclamation and breakwater construction. The validation of the USAR model was also carried out through the simulation of real projects. The application of this suite of direct cost and economic benefit tools provides valuable new insights into the analysis of the potential benefits of sediment reuse projects at a local and a regional scale in the context of the circular economy and also provides the stakeholder community and the overall decision-making process with the potential capacity to assess sediment management strategies and projects using multi-criteria analyses.


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