• feasibility studies and process development
• operation of plants at clients site
• turn-key plants
• main components for drying plants from own manufacturing
• laboratory- and pilot - tests
• toll drying

Process Technology

example: sewage sludge drying

In a first swep sewage sludge will be dewatered mechanically. Feed to the plant by means of a slurry pump. The drying process takes place in three levels. After passing the third level the dry product is discharged and transferred to a storage place.

The vapors containing 95% steam are liquefied in downstream condenser. Condensate will be recycled to the feed of the sewage works.

Organic compounds will be decomposed in a biological filter.

The dryer modules are heated by a thermal oil unit. The vessel can be heated either by natural gas, sludge gas or fuel oil.

Dryer plant and hot oil unit are placed in a drain tray for protection of environment.

process scheme of a sewage slurry drying plant: