Our biogas plants give you the freedom

  • to use feedstock with high energy density
  • to use fibre and cellulose rich feedstock like gras, straw, palmoil production residues, etc.
  • for frequent and easy change of feedstock

We have successfully built and run biogas plants on 4 continents in more than 13 countries.
Why do we do what we do? We want to be part of the energy revolution, away from fossile energy to 100% renewable energy.

For a healthy future for our children and grandchildren.
And for your economical success!



High performance biogas plant with separate hydrolysis and acidification unit

Traditional biogas plants are normally built as single stage plants. The biomass (renewable raw materials) will be harvested and directly from the silage clamp "feeded" into the digester. This digester is comparable to a stomach digesting the biomass. This biogas plant system is comparable to feeding of fattening pigs.

Cows however have a polynominal digestive system with different tasks and pH-Values which enables them to utilize gras and maize silage. The SLP Batch high performance biogas plants are recreated according to this role model. Unlike in single the biological processes are divided into
1) Hydrolysis and acidifaction (in the hydrolysis tank)
2) acetate and methane formation (in the digester tank)


We were the first to introduce the BATCH Hydrolysis System and have ever since achieved biogas yields that lay up to 30% above the yields of single stage biogas plant.


The biggest BATCH Hydrolysis advantages:
- More flexibility with the feedstock choice - more flexibility with running the plant
- cheaper feedstock + higher biogas yield
= more profit




fibre rich material (Straw, etc.)  Manure Chicken Manure Slaugherhouse Waste Fish processing waste fruit and vegetable waste sugar caine residue
 Grain byproducts kitchen and restaurant waste waste from food and beverage production landscaping material  Napier Grass organic waste and many other


The feedstock is key for the success of a biogas plant. The cheapest feedstock is fibre rich, with high cellulose percentage and mostly irrelevant for the industry. Another cheap feedstock is organic waste, which frequently shows high energy density (for instance animal fat from slaughterhouse waste).

Batch Hydrolyses were developped for both kinds of feedstock. Fibre rich material is easily broken up in the hydrolysis tank.
Energy rich material with amount of protein, starch and fat can lead to acidification and collapse of the biology. With a separate hydrolysis tank that is not a problem. The BATCH Hydrolysis prevents both with fascinating results:

  • Very short retention time - between 12 - 30 days (compared to 60- 150 days in single stage plants)
  • Up to 80% fabre richt material can be digested (impossible in single stage plants)
  • High flexibility - feedstock can be changed daily, accordingly to availlability; this is especially important for waste fermentation plants


You also want a biogas plant that can handle all different kinds of feedstock? Give us a call or write us a Mail!



Biogas Management School


Snow Leopard Projects GmbH

Marktplatz 23

94419 Reisbach


Tel: +49 8734 93977-0

Fax: +49 8734 93977-20

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