Underground collection tanks for agricultural wastewater

GRAF underground collection tanks are used for the safe collection and storage of silage leachate, contaminated rainwater from drive-in silos, and slurry, manure, and silage-leachate systems. They protect soil and water bodies from contamination and therefore play an important role in operational environmental and water protection. The decontamination process places high demands on the tank systems used. GRAF’s corrosion-resistant solutions offer a safe and durable option for storing silage effluent and slurry. Compared to concrete tanks, plastic tanks offer the major advantage of not requiring an internal coating.

For facilities handling water-polluting substances, tanks with general building authority approval (DIBt) and designed in accordance with the AwSV (Ordinance on Facilities for Handling Water-Polluting Substances) are particularly suitable, as they meet legal requirements for leak-tightness, durability, and operational safety.

GRAF is the first in the industry to offer silage-leachate tanks with official DIBt approval and AwSV compliance. Certified reliability.

GRAF collection tanks for silage effluent and slurry, which are DIBt-approved and comply with the AwSV, are a reliable solution for:

  • Agricultural holdings
  • Fixed installations for the storage and transfer of slurry, liquid manure, silage, solid manure and fermentation residues
  • Local authority facilities and municipal depots
  • Biogas plants