Waste stabilization

Processing for final storage

Preventing dust and achieving homogeneity

Incinerator bottom ash, fly ash and backfill produce dust and cannot be pumped until they have been treated accordingly. They must first be processed before you can safely dispose of them or use them, for example, as binders in the construction industry or for backfilling. BHS-Sonthofen offers highly efficient, durable technical systems for stabilizing these materials. This includes our single-shaft continuous mixer (type MFKG) equipped with a rubber trough and twin-shaft batch mixer (type DKX).

Benefits at a glance:

  • High degree of homogeneity
  • Low operating costs
  • Reliable and low-maintenance
  • Available in various sizes

Mixing and humidification

Processing ash


Processing ash

Fly ash is fine-grained combustion residue that generates lots of dust. To stabilize the ash, water is added to it while in a mixer so that it can be readily pumped. The BHS single-shaft continuous mixer (type: MFKG) is the perfect choice for the job. The self-cleaning rubber trough combines high throughput with low maintenance.

Backfill stabilization

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Backfill stabilization

For financial reasons, the overburden produced in mining is often used in backfilling. To make it pumpable and reusable, binding agents, water and, where necessary, other auxiliary materials are typically added. Having a high degree of homogeneity is important to ensure the material can be easily pumped on a consistent basis.

Our twin-shaft batch mixer (type DKX) has proved it can handle this task. Whether you need a single machine or an integrated system with metering and control technology, we design the technical system based on your requirements.

Machine portfolio

Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

Single-shaft continuous mixer (MFKG)

High-performance, maintenance-friendly solution for continuous mixing processes with finer grains


Tests give certainty

Which technical solution is the right one for your recycling process? Don’t leave anything to chance. Our team of specialists will test your material at our test center and develop a solution tailored to your specific needs.


International Congress for Battery Recycling (ICBR) 2021

9-22-2021 - 9-24-2021

Pollutec 2021

10-12-2021 - 10-15-2021

Vakbeurs Recycling (Gorinchem) 2021

11-16-2021 - 11-18-2021

IERC 2022

1-19-2022 - 1-21-2022

Satisfied customers worldwide


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Find a sales representative

Find your personal contact person on site. We are there for you worldwide.