Hazardous Waste Treatment
Rotary kiln with secondary combustion chamber

Due to the required high-temperature incineration, hazardous waste treatment plants mainly operate with rotary kilns as combustion systems. These rotary kilns have a length of up to 15 meters, an outer diameter of as much as 5.5 meters and are specially designed for high temperatures with their fire-resistant coating. The secondary combustion chamber (SCC), which is sub-connected to the rotary kiln, takes on the task of completely burning out the exhaust gases of the rotary kiln (residual organic substances, crushed solid particles, CO strands) and ensuring the legally required two-second residence time at 1.100 °C. Solid wastes are placed in the front of the rotary tube, and liquid and gas waste can be inserted into the rotary kiln or at the beginning of the secondary combustion chamber. In all cases, complete burnout is ensured. We support you, no matter if it is maintenance, modification, or renewal of existing assets.

Rotary kiln

  1. Solid waste feeding

  2. Gate to feed container and drums

  3. Burner

  4. Ash discharge rotary kiln head

  5. Primary air supply

  6. Rotary kiln

  7. Rotary kiln, bearing and mechanical guide

  8. Bottom ash discharge

  9. Secondary combustion chamber (SCC)

We support you, no matter if it is maintenance, modifikation or renewal of existing assets.

  • Pre-study and consultancy

  • Concept design

  • Overall planning

  • Engineering

  • Project planning and execution

  • Realisation onsite

  • Commissioning

  • Maintenance

This applies to the core parts of the plant

  • Feeding of the rotary kiln

  • Rotary kiln and secondary combustion chamber

  • Flue gas treatment

  • Energy recovery

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Rotary Kiln System Hazardous Waste
Waste to X

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Further related technologies

Grate Combustion systems

The combustion system is the best-proven thermal waste treatment technology for mixed municipal, industrial or hazardous waste, and the heart of any modern, state-of-the-art Waste to Energy (WtE) plant.

Flue gas treatment

Incinerating waste produces exhaust gases laden with diverse pollutants. Different processes are used to remove these pollutants before the purified flue gas leaves the plant safely through the stack.

Carbon capture

Capturing carbon dioxide (CO2) from the flue gas produced in hard-to-abate industries and properly storing it (a process called carbon capture and storage or CCS) is a key component of most governments’ net-zero strategies.

Energy recovery

Recovering the energy content of waste is a key component of WtE technology. Since the process is largely renewable and involves only a low level of emissions, it also helps significantly reduce greenhouse gases.

Residue treatment

Thermal waste treatment produces residues which can be either reused or landfilled. The principal components are slags and ashes, consisting mostly of non-combustible waste constituents such as glass, minerals or scrap metals.

EcoFlex™ WtE plant solution

The new pre-engineered EcoFlex™ solution provides a modern waste infrastructure based on proven in-house technologies, allowing a cost-optimised design of single-line Waste to Energy plant construction and operation.