Orinso processes biomass and residual organic streams in accredited installations. The product can be liquid, semi-solid or solid. We also offer packed product solutions. Orinso offers total solutions, including services such as transport, storage and dewatering. Orinso guarantees traceability and legality and provides all the documents an processing certificates needed.


Orinso leads the market in Benelux in the supply of biomass for biogas plants. Orinso also operates beyond these borders, mainly in Germany, France and Great Britain.

Organic waste starts to ferment in the anaerobic environment of the biogas plant. The gas released in the process is used to generate green electricity and useable heat. The digestate left behind is used as a fertilizer to improve soils.

Main products:

  • glycerin
  • soapstock
  • energy mix from unpacked foodstuffs
  • grain residues
  • potato products an starch
  • fruit
  • pet food
  • Cat. 3 and animal by-products
  • fat streams and floating sludges


Not all products are suitable for biogas. If semi-solid or solid they can be used for composting. This is a natural process by which organic, biological material is converted into compost. The end-product is used as a soil improver.

Main products:

  • dewatered sludges
  • Cat. 3 and animal by-products
  • fruit and vegetable waste
  • potato leaves
  • paprika leaves
  • cucumber leaves
  • roadside grass
  • cherry stones
  • tomato leaves (with clips and cords)

Water Treatment

Streams with a very low DMC (Dry Matter Content) are not well suited to use in biogas installations. Orinso processes these streams in a professional wastewater treatment plant (WTP). Once the natural biological process has taken place in the WTP, the sludge can be dewatered in a centrifuge, belt press or chamber filter press. The dewatered sludge then reaches a DMC of 15 to 3¨% or even more. It can then be used for biogas, composting or incineration.

Main products:

  • influent or effluents
  • liquid sludge streams


We use the term ‘recovery’ to describe processing via biogas, composting and WTP because the products/waste streams are intended for reuse. In this case they satisfy the strict VLAREMA regulations. If the products do not satisfy the VLAREMA regulations, they go for incineration. Here, Orinso distinguishes between incineration in the strict sense and co-incineration, which is basically something between disposal and recovery. In this process waste streams are recycled through their reuse as a fuel in cement ovens. Even the ash left from burning can be recovered in the cement.

Main products:

  • non-VLEREMA conform products/waste
  • various types of wood waste