Bioenergy of the future, sustainable fertilizer production

The challenge

Operators of biogas plants are facing difficult times: considerable increases in the price of raw materials and increasing restrictions on the spreading of liquid manure and fermentation residues lead to additional costs, which have affected many farmers in recent years. As a result, more and more biogas plants are getting into economic difficulties. In addition, structural and technological deficiencies are becoming increasingly apparent, and renovation measures as well as replacement investments have to be carried out.

Added to this is the growing resistance of the population to the "maizeification" of the landscape and the blanket demand by politicians and consumers for more ecology and sustainability in agriculture: excessively high nitrate levels in groundwater, a ban on glyphosate, bee protection, flower strips or the reduction of greenhouse gas emissions are just some of the areas of conflict between agriculture and the population. Translated with (free version)

The solution is actually quite simple...

Have your biogas plant repowered by Aleia

At Aleia, our unique technology and experience enables us to help operators to run their biogas plant with a high, positive profit after a conversion..

We can upgrade up to 4,000 biogas plants in Germany with our patented processes and make them highly profitable again.

We achieve this by changing the substrate supply, namely the complete replacement of feed silage (especially maize), sugar beets, grain and manure low in dry matter by

  • liquid manure ingredients
  • dung
  • poultry excrement
  • cereal straw, rape straw or maize straw silage

and through a more intelligent use of existing plant components as well as, if necessary, plant expansion.

The sustainable and significant increase in the economic efficiency of the converted plants is to be achieved on the basis of the exclusive use of residues from agricultural plant and animal production through the consistent application of the necessary elementary basic operations for methane fermentation, which represent the known state of the art in anaerobic digestion and have been successfully applied on an industrial scale:

  • Use of adapted microcultures for the various process steps
    - aerobic hydrolysis
    - main fermentation in a mesophilic environment and
    - post-fermentation in a thermophilic environment
  • Application or use of culture-preserving fermentation apparatus
  • Avoidance of the fermentation toxin oxygen in the methane fermentation
  • Guarantee of minimum treatment times in the anaerobic environment of more than 20 days
  • Appropriate comminution of the biogenic input materials before biotechnological treatment
  • Maximum recycling of the germ-containing process liquids for the suspension of the input materials
  • Avoidance of dissolved ammonia in the biosubstrate in toxic concentrations
  • Avoidance of the supply of foreign substances, such as enzymes, micronutrients, sulphur binding agents
  • Maximum reduction of environmental pollution caused by transport and emissions of pollutants for the protection of man, air, soil and water
  • Extraction of fermentation residues with a maximum concentration of plant nutrients for potential export from regions with excess of  nutrients


Liquid manure, fermentation residues and the high nitrate pollution of groundwater

Why repower your biogas plant with Aleia?