Pastapresse (ohne Klärschlamm auf den Platten)

Energy efficient drying of sewage sludge

Drying sewage sludge using our plated belt drying system

Sewage sludge deposits frequently pose difficulties for water treatment stations. Drying sludge may provide a solution. Dorset has practical experience with the drying of sewage sludge.

This is a sustainable and cost-effective way of recycling sewage sludge into fuel. Our sludge dryers are frequently provided with Dorset Air Washers, which reduce emissions to the set standards.

As a manufacturer of air washers, Dorset can simply install an air washer or deliver it with the machinery. We offer total turn-key solutions including heat recovery, safety, storage and air cleaning equipment.

practical experience with drying sewage sludge

A sustainable and cost-effective way of recycling sewage sludge into fuel or biosolids

Benefits of the Dorset dryer

the best value for money

Low energy consumption

Highly compact and flexible

Requires little maintenance

Fully automatic operation without supervision is possible

Dewatered sludge can be dried without intermediate treatment

Low dust generation through low air speed

Why dry sludge?

  • Making good use of residual heat during the entire year
  • Lower storage and transport costs
  • New sales and utilization possibilities
  • hygienization and reduced emissions/odours

make your own layout

click a button to add component to example layout

Total sludge solution
Combining sludge dryer with air cleaning and toploader
Drying sewage sludge
Biological air cleaning
Reducing ammonia, dust and odour emissions
Chemical air cleaning
Very effective at reducing emissions in air with high ammonia concentration
easy access for trucks delivering sludge for processing
Heat recovery
Reducing heat consumption by reusing heat in the system

Possibilities for using dried sewage sludge

Dried sewage sludge is regularly used as a fuel or biosolids

After dewatering the sludge, a dry matter percentage of between 18 and 22% will usually remain. After drying sewage sludge with a Dorset Dryer, a dry matter content of 90% can be achieved.

Dried sewage sludge in the toploader

Dried sewage sludge in a storage bunker


For more information about the drying of sludge, please read our brochure.


What's happening?

are you interested?

Do you have a question?

Would you like a quotation


a few example locations

7.500 t/a sludge

  • Germany
  • 1000 kWth
  • Biological air cleaning
  • Chemical air cleaning
  • Toploader
  • 23% DM -> 90% DM
automatic discharge from storage area

5.500 t/a sludge

  • Germany
  • 600 kWth
  • Heat recovery
  • Biological air cleaning
  • Toploader
  • 21% DM -> 90% DM
On site visit by service mechanic

11.000 t/a sludge

  • Lithuania
  • 1000 kWth
  • High temperature 150/120°C
  • Heat recovery and air mixing
  • Biological air cleaning
  • Chemical air cleaning
  • 22% DM -> 90% DM