Pyrolysis / recovery

The raw materials used are green waste, bark, wood, thorns, leaves, organic waste, grain waste, straw, rape meal, beet pulp, pomace, digestate, screenings, sewage sludge, compost, chicken manure, paper fibre sludge, spent brewers' grain, and many more.

In addition, we separate inorganic substances from organic material.

The efficient recovery of recyclables from waste.

  •  Reclamation of metals
  •  Concentration of heavy metals


Sonnenerde Gerald Dunst Kulturerden GmbH - awarded the Austrian Climate Protection Prize - 2012

Recycle sludge into carbon phosphorus fertilizer

Nutrients such as carbon and nitrogen are lost as soil fertilizers in conventional waste-water treatment systems. If sewage sludge is incinerated, the phosphorus is also lost.  In the future, due to scarce resources it will be necessary that these nutrients are retained in circulation to the greatest extent possible. An innovative pyrolysis process makes this possible: a valuable carbon-phosphorous fertilizer is created from de-watered sewage sludge.

Minimizing the cost of disposal of sewage sludge

A sewage sludge conversion plant converts 400 tons of sewage sludge (25% TS) into 500 tons of high-value, marketable carbon-phosphorous fertilizer.

The costs for disposal of the sewage sludge are thus significantly minimized

© Greenlife

The benefits

  • Recycling sewage sludge instead of disposing of it.
  • Recovering phosphorus and carbon
  • Minimizing disposal costs
  • Bio-carbon is marketable