Fly ash and FGD gypsum

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

Efficiently wash out heavy metals, salts and chlorides

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), 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

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.

EU Starch Value Chain Conference 2025

10/13/2025 - 10/14/2025
Your next wow moment is waiting for you—visit us at table 2. We look forward to welcoming you!

Gulfood Manufacturing 2025

11/4/2025 - 11/6/2025 | Dubai (United Arab Emirates)
Meet us at booth S1-J89. Our experts look forward to welcoming you.

CHEMUK 2026

05/20/2026 - 05/21/2026 | Birmingham (UK)
Meet our experts at booth H66 — we look forward to welcoming you!

FILTECH 2026

06/30/2026 - 07/2/2026 | Cologne (Germany)
Your chance for exclusive insights: Booth B44 in Hall 8—our experts look forward to seeing you there.

Satisfied customers worldwide

Find a sales representative

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

Find a sales representative

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