Project phasing

Prisma consists of 3 activities:

•    Activity 1: Actions and Investments to develop and to test adapted sediment methods to improve the dredging process
•    Activity 2: Actions and investments to develop and test innovative methods for the treatment of dredge spoil
•    Activity 3: Actions and investments to improve and promote the reuse of dredge spoil


Activity 1

The main aim of this activity is improving the dredging processes and reducing the dredging volume, standardizing this in renewed installations, appliances and dredgers and testing these in pilots investments. An important secondary objective is to look at and compare new developments at a higher abstraction level. A number of transferable concepts and methods are also being developed and tested for this. The underlying thought here is that this will lead to more effective research into improving and renewing techniques and methods as the range of application will be increased and transnational cooperation will be promoted. All this should result in sustainable sediment management in estuarial waterways and nature reserves.

The partners will jointly search for adapted methods and techniques and carry out pilot projects.


Within this activity we distinguish 2 sub actions and within each sub action one or more activities or investments (pilots) will be carried out: These 2 sub actions are:

  1. Investigations, workshops and evaluations into adapting techniques.
  2. Developing adapted and mobile dewatering methods and other applications of improved techniques: implementing several pilots and assessment of results


As sub action 1 shows, partners will first conduct an investigation into adapted dredging methods and techniques in and outside the 2 Seas Area and they will check which of those can be used and improved in their own project areas. The Broads and Armines will carry out a few pilots to test adapted techniques and methods of dredging and dewatering: how could this be done more sustainable as far as materials, energy, environment, volume and costs are concerned. The pilots will be evaluated in detail.


Activity 2

The main aim of this activity is improving the treatment methods, concretising this in mobile laboratories, treatment installations and decision-making models and testing these in various pilot investments. An important secondary objective is testing the decision-making model against legislation in various countries. All this should result in sustainable sediment management in estuarial waterways and nature reserves.

Within this activity, the focus is thus on treatment techniques and methods: how can these be improved so as to lessen the dredge spoil that needs to be dumped, how can the quantity of polluted material that is not suitable for reuse be limited as much as possible and how can the possibilities of reuse, both quantitatively and qualitatively, be increased as much as possible through a follow-up treatment. Within this activity we distinguish 4 sub actions:

  1. Decision-making model: general study to develop a decision-making model;  the model will also take into account economic, logistic, technical, energy and environmental criteria.
  2. Case Study: to validate the developed Decision-making model.
  3. Mobile laboratory: developing laboratory on site, implementing several pilots, assessing results.
  4. Testing treatment methods: implementing several pilots, assessment of results.


The basis for treatment and reuse is a proper characterisation of the dredge spoil, preferably on site. Armines is going to develop and test a mobile laboratory for this. The other partners will test dewatering and treatment methods, so that the spoil can be treated optimally before it can be transported to reuse locations (or companies).

 

Activity 3

The main aim of this activity is reusing dredge spoil as much as possible by carrying out a number of pilot projects in various areas. The underlying objective is limiting the dumping of dredge spoil and making dredging activities cheaper. A 2nd important secondary objective is comparing legislation in various countries and making proposals for harmonisation.

All this should result in sustainable sediment management in estuarial waterways and nature reserves.

Within this activity, the focus is thus on reuse of applications and methods: how can these be improved so as to avoid having to dump dredge spoil as much as possible, how does the dredge spoil behave in different applications, does the reuse have negative consequences for the environment, what are the economic benefits and costs.

Within this activity we distinguish 5 sub actions and within each sub action one activity or investment (pilot) will be carried out:

  1. Testing several techniques for the construction of islands, adapting farmland and providing river defences by means of dredge spoil.
  2. Designing, constructing and monitoring dyke embankments by means of dredge spoil in geotextile bags.
  3. Constructing and testing a section of road by means of treated dredge spoil.
  4. Site preparation of agricultural land for creating housing areas.
  5. The execution of a joint study about national and European Legislation in the field of dredging and reuse.

Information on this website reflects the author’s view.
The INTERREG IV A 2 Seas Authorities are not liable for any use that may be made of this information.