Terrawater - Model TerraOrganic HEF -Fermentation Residues

As part of its TerraOrganic product family, Terrawater has developed a modular system for nutrient separation and fermentation product upgrading adapted to the respective biogas plant.

Here, parameters such as “available heat” are taken into account, such as “nutrient separation”, “storage volume” and “transport costs reduction”.

The “TerraOrganic HEF” system presented here is particularly suitable for biogas plants that want to extract the maximum amount of nutrient separation from the small amount of available heat.

For this, the input only runs through our solid-liquid separation “Terra-Organic F-F-T”. This consists of two stages, whereby already existing separators of the customer can be integrated! The result is a solid fertilizer product, a phosphate-containing thick sludge, and a liquid phase. This is passed on to our “TerraOrganic HEF” for further processing. In this, an ammonium sulfate solution (ASL) is generated with the addition of sulfuric acid. The remaining concentrate is defined in its fertilizer properties and can be spent on the field.

• Generation of a defined fermentation concentrate! Reduced in volume and by large parts of nitrogen and phosphate. This increases the transportability. This allows transport from the surplus areas and helps prevent over-fertilization.
• Highly efficient heat utilization! Even with small amounts of heat, large amounts of input can be washed or refined.
• Separation of purified water! Direct repository discharge. 50% of the water will evaporate, 50% will be rainy or initiated.
• Separation of a solid fertilizer! This also contributes to the repository discharge. Easy to store and an ideal base fertilizer.
• Separation of an ammonium sulfate solution (ASL)! As a result, nitrogen falls out of the organic fertilizer balance. It can optionally be converted to Sulfuric Acid Ammonia (SSA).
• Influence of the ammonia limit in the fermenter. This substrate substitution by increased use of manure, HTK or the like possible.
• Separation of a strong phosphate-containing thick sludge! This allows cost-effective transport from the surplus areas and thus reduces the area load.
• Generation of a defined concentrate! Reduced in volume and large parts of nitrogen and phosphate. This increases the transportability. This allows the transport from the surplus areas and helps to prevent over-fertilization .