Sludge for improving the soil quality of agricultural land
Business canvas for further product and market development
Improving soil for agricultural land
River sludge is often regarded as waste and is dumped in landfills or used for low-quality applications such as making lakes shallower. However, sludge contains raw materials that may be valuable for improving the soil quality of agricultural land. Therefore, Rijkswaterstaat (the Directorate-General for Public Works and Water Management) initiated a project to explore opportunities for using river sludge as a soil improver. In cooperation with the Nutrient Management Institute, Witteveen+Bos compiled a picture of the present market for soil improvers. A workshop held with water managers, dredgers, agricultural cooperatives and fertiliser suppliers examined the opportunities that exist for marketing river sludge. A business canvas was drawn up to serve as a basis for further product and market development aimed at using river sludge as a raw material for improving soil.