Swe

Dredged Sediment in the Circular Economy

A case study of the utilization of organic waste to improve agriculture productivity in Kalmar region, Sweden

What is the current sediment management?

  • Most dredged sediment is transported and dumped as waste, which is a very costly and wasteful operation.
  • Most dredged material could be used in a beneficial manner effective and economic ways. Most of the dredged material is recognized as a valuable resource that can be used in environmentally beneficial ways.

Aims of the experiment

  • Evaluation of dredged sediment co-composted with beach wrack, soil, commercial compost and biochar as plant growing media
  • Dredged sediment as a substrate for biomass production of edible or ornamental plant: Effects on plant growth, nutrient availability, and leaching

Specific aims

Shaping lifelong learning capacity and developing ways of classifying, recycling and promoting dredged sediment management strategies in terms of innovation.

Objectives

The hypothesis tested in this project is that sediments will improve the productivity of soils and more specifically:

  • The effect of sediment application on soils
  • The yield of plants grown on sediment-treated soils
  • Metal uptake by plants grown on sediment-treated soils
Published: 11 October 2021