Introduction
The DANO® DRUM by Keppel Seghers is a waste pre-treatment technology designed to address the increasing waste production by enhancing material recovery and facilitating waste handling. It is suitable for various final treatment methods such as incineration, composting, anaerobic digestion, or landfill disposal.

Principle
The DANO® DRUM is a horizontally mounted, rotating steel cylinder that shreds, mixes, and homogenizes waste. It produces two or three waste fractions: an undersized fraction with organic materials, a middle-sized fraction with metals, and a larger fraction with high calorific value (RDF).

Applications

• Feedstock for Waste-to-Energy installations: The RDF is ideal for energy recovery due to its high calorific value and homogeneity.
• Materials recovery: Middle and larger fractions can be further treated to recover valuable materials like metals and plastics.
• Anaerobic digestion or composting: The process prepares waste for organic separation and biological processes.
• Volume reduction: Increases bulk density, reducing transport costs and extending landfill life.

Process Description
A single drum processes up to 20 tonnes of waste per hour with a residence time of 4-6 hours. The rotation causes particle collision and attrition, selectively reducing biodegradable materials.

Features

• Ideal for Waste-to-Energy installations
• Soft pulverization process
• Volume reduction by increasing bulk density
• Intermediate step for metal recovery
• High reliability with over 99% availability
• Low maintenance cost

Conclusion
The DANO® DRUM offers a reliable and efficient solution for waste pre-treatment, enhancing material recovery and reducing waste volume, making it a valuable technology in waste management.