Workpackage I6 : Investment

The WP objective is the operational and long-term improvement of sediment reuse strategy in the Rance estuary. It capitalises on SURICATES LTE investigations focused on identification of potential reuse applications and will go over the planned ‘guidance and support of local activities’ with operational sediment processing and market traction development activities for sediment reuse.

SURICATES PPs will provide tools, methods, dehydration equipment for test and adaptation and their expertise to local stakeholders to share knowledge. The first phase in this WP consists of implementing on the La Hisse site a sediment reuse demonstration area to showcase reuse applications and long-term monitoring. EPTB will set up this area with IX & IMT expertise support for design (A1). In a second phase (A2), 7 000 Tons of sediment provided by EPTB will be processed on site by EPTB and IX to generate the material and products designed by IMT (WP Implementation): (i) artificial stones/binder made of sediment for dry stone walls refurbishment (traditionally used for flooding/bank protection), (ii) bunds, (iii) dikes, and (iiii) ease soil erosion compensation for agricultural beneficial use. As a third phase, the Monitoring strategy (A3) will help to source sediment for each targeted application with innovative monitoring techniques (BRGM) to map sediment characteristics with depth and environmental impact of reuse applications will be monitored by EPTB with expert support from IX/IMT) to secure stakeholders and evaluate Carbon storage potential (UoS) to value the future economic impact of Carbon storage.

Finally, to evaluate and stimulate the sediment ‘market uptake’, ULille and EPTB will map territorial potential and stakeholder priorities for a successful commitment to sediment reuse on the Rance estuary territory. Their expertise and first results will be used for sediment allocation decisions regarding each material/product to be generated in this WP (D3.1).