ANAEROBIC DIGESTION & RESOURCE RECOVERY

Our RSD® technology starts where conventional liquid biogas plants and plug flow systems reach their limits. Dry fermentation, on the other hand, allows the fermentation of dry and fibrous substrates (dry matter: 20%-55%), which often cause problems in other systems.

The process runs in batch mode and provides a continuous biogas yield. The plants consist of several digester boxes (garage digester), which are filled and emptied in a fixed cycle. The manual effort required is extremely low, since apart from the simple loading and unloading activity, pre-treatment of the substrate (shredding, shredding) is rarely necessary. In addition, the substrate is not being moved during the entire retention time (18-21 days). The failure and maintenance costs of the technology are reduced since no sensitive stirring and pumping technology is used (avoidance of floating and swelling layers).

One of the most important advantages of dry fermentation is the low demands on the substrate. This can contain impurities that remain as residues after the process and is less dependent on particle sizes as well as fiber content. As an example, consider domestic biowaste, which often contains residual materials such as packaging materials, or horse manure with horseshoes or holsters, which can cause great damage to stirrers.

The biogas produced can then be directly converted into electricity or processed, as biomethane or bio natural gas, and fed into the gas grid or used as vehicle fuel (CNG).

Anaerobic Digestion Scheme Renergon

WHICH WASTE IS SUITABLE?

Organic waste is widely underestimated worldwide from an economic and ecological point of view. RENERGON transforms this broad spectrum of material into value. This gives our customers an economic and technical edge. The following substrates are relevant:

BIOWASTE

Bio bin, food waste, canteen, restaurant & food waste, waste from the food industry & supermarket

GREEN WASTE

Green & grass cuttings, garden waste, waste from park and landscape maintenance

MSW (household waste)

Organic fraction from Municipal Solid Waste (MSW)

AGRICULTURE WASTE

Waste from agricultural production, crop residues, waste from processing of fruit and vegetables

ANIMAL HUSBANDRY WASTE

Solid manure from horse, poultry, cattle and pig farming

SLAUGHTER BY-PRODUCTS

wastes (so called by-products) from animal processing into foodstuffs

INNOVATIVE BIOGAS TECHNOLOGY

Biogas production from organic matter is a natural process, the closer one follows the natural processes with industrial ones, the better the results tend to be. When technical systems work against nature, they tend to become complex, resulting in excessive wear and tear as well as failures in plant operation. RENERGON, therefore, uses minimal but robust key components to support and enhance the natural processes. Measurable synergistic effects are the result: Stable biogas production, low wear, low-energy consumption, and the associated low life cycle costs with a long plant service life and availability.

In the case of Solid Anaerobic Digestion as the core technology (patented RSD® process – Renergon Simultaneous Digestion), the process liquid, the percolate, is circulated, and thus the decomposition process of the stackable biomass in the fermenter boxes into biogas is started and maintained. This percolate cycle ensures that relevant microorganisms, moisture, heat, and essential nutrients are evenly distributed in the biomass. In addition, the percolate with its buffer substances stabilizes the entire biogas process. Due to the robust plant technology and the stable anaerobic (without oxygen) degradation, impurities, foreign bodies have little impact.

  • CAPACITY 4.500-150.000 T/Y

  • WIDE RANGE OF FEEDSTOCKS (20-55% DRY MATTER)

  • HIGH PROCESS STABILITY
  • LOW LIFE CYCLE COSTS
  • STABLE AND LOW ODOUR DIGESTION RESIDUE

FROM WASTE TO VALUE

We focus on our customers. You choose a profitable investment through the production of renewable energy, fuel, compost, fertilizer and biochar as well as through proceeds from waste disposal and generated CO2 compensation certificates.

Biogas is a versatile energy source that can be transported and stored. In addition to generating electricity and heat using a combined heat and power unit (CHP), it can also be processed into bio-methane (bio natural gas). It is then fed into the natural gas grid, used as fuel (CNG) for cars, trucks and buses, or filled into gas cylinders and sold to industry/commercial or private households.

  • ELECTRICITY AND HEAT (RENEWABLE ENERGY)
  • BIOMETHANE (GAS GRID, CNG FUEL)

  • FERTILIZER, COMPOST & BIOCHAR (HEALTHY SOILS)
  • WASTE REDUCTION (PROBLEM SOLVER)