Fly ash and FGD gypsum

Washing out heavy metals, salts and chlorides with vacuum belt filters

Usable building materials

In the treatment of REA gypsum and fly ash, filtration solutions from BHS-Sonthofen ensure a particularly high quality of the respective end product. The use of appropriately treated materials conserves resources and thus helps to protect the environment.

Benefits at a glance:

  • Multiple cake washing

  • Efficient filtration

  • Corrosion-resistant design

  • Process development via laboratory tests and pilot plants

Ash washing

Heavy metal removal

Ash washing

Incineration plants produce ashes contaminated with salts, chlorides and heavy metals, which are considered hazardous waste and must be disposed of in special landfills. By washing out these substances on continuous BHS vacuum filters (indexing belt filters or rubber belt filters), valuable materials can be recovered and the environment relieved.

Fertilizer from waste

Phosphor-Recycling

Fertilizer from waste

In the treatment of FGD gypsum and fly ash, filtration solutions from BHS-Sonthofen ensure a particularly high quality of the respective end product. Extracted metal salts as potassium or phosphorus compounds can thus be returned to the cycle and reused.

Our machines in use

Indexing belt filter (BF)

This type of vacuum filter is particularly gentle on sediments.

Horizontal mixer (HTC/HTK)

Optimal mixing quality with short mixing times

Rubber belt filter (BFR)

Reliable, high-precision filters for rapidly settling solids.

Tests give certainty

Which technology is the right one for your process? Don’t leave anything to chance. In our test center and filtration laboratory, we test according to your specifications and identify the optimal solution for you.

PRSE 2025

04/1/2025 - 04/2/2025 | Amsterdam
Booth F3

Satisfied customers worldwide

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Find a sales representative

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