Waste to X Technologies
Residue Treatment
Re-sourcing Solutions

Re-sourcing, a sustainable concept for recovering recyclable materials from residues

Thermal waste treatment produces residues which can be either recovered or landfilled. The principal components are slags and ashes, which consist mostly of non-combustible waste constituents such as glass, minerals, and scrap metals. Flue gas cleaning also forms reaction products. The volume and nature of the residues produced depend primarily on the waste composition and the process used in the specific treatment concept. With an intelligent secondary treatment process, much of these materials can be recovered. IBA (Incineration Bottom Ash) and fly ash treatment have an enormous recycling potential. Here we distinguish between three main concepts:

  • X2conmat™, which recovers construction materials and ferrous metals

  • X2metal™, which recovers ferrous and precious metals

  • Ash2Salt™, which recovers salts from the fly ash

By using recovered secondary materials, operators can not only reduce disposal costs but also create a new source of income that might help offset other growing costs and contribute to a circular economy.

Focus of re-sourcing at WtE plant

Scheme flue gas and residue treatment
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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.

Hazardous waste treatment

Treating hazardous waste is about the safe incineration (destruction) of the dangerous material contained in the hazardous waste. Moreover, issues such as the circular economy and energy recovery are also increasingly important.

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.

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.