Digestate Storage

Product Highlights

Wide range of materials: glass-fused-to-steel, epoxy-coated, stainless steel, or galvanised steel
Optimal sealing with a mastic seal or flexible membrane liner, depending on the model
Capacities from 5 m³ to 10,000 m³, with quick weld-free assembly
Durable, modular, and low-maintenance solutions

Documentation

Our liquid digestate storage tanks are widely used in biogas plants. They constitute the final storage stage before digestate recovery and reuse of digestate.

Our Solutions for Digestate Storage

Digestate, the by-product of anaerobic digestion, must be stored securely and safely before it can be used for agricultural reuse or energy recovery. Our storage solutions address the technical, regulatory and economic constraints of this crucial stage in the biogas process. We offer a complete range of tanks that are designed to ensure safe, watertight storage, while optimising operating and maintenance costs.

Glass-fused-to-steel tank with mastic seal

Glass-fused-to-steel offers complete chemical inertness when in contact with digestate. It is highly resistant to abrasion, and its durability has been proven when storing industrial or agricultural effluents of various types. Roof configuration is selected according to digestate characteristics and residual biogas production.

Epoxy-coated steel tank with mastic seal

This type of tank is coated with a highly resistant industrial epoxy, providing effective protection against the corrosive nature of effluents from anaerobic digestion. The mastic seal ensures a watertight seal. The type of cover used may vary depending on the quality of the digestate and the amount of residual gas produced.

Stainless steel tank with mastic seal

Stainless steel is renowned for its exceptional corrosion resistance, enabling long-term storage. As a homogeneous material, it is highly resistant to abrasion when storing highly viscous digestate or effluents with a high total suspended solids (TSS) content. Its mechanical strength and impact resistance offers excellent mechanical strength and impact resistance. The type of cover used may vary depending on the quality of the digestate and the amount of residual gas produced.

Galvanised steel tank with a PVC liner

The most cost-effective solution is the galvanised steel tank with a PVC liner. It is primarily intended for open-air storage and is suitable for temporary storage applications. Its durability is more limited than that of coated or stainless steel tanks, and the presence of a liner makes maintenance requirements are higher. The type of cover used may vary depending on the quality of the digestate and the amount of residual gas produced.

Technical features of our solutions

Our digestate storage tanks are available in capacities ranging from 5 to 10,000 m³, for projects worldwide. They are quick to assemble, with minimal welding and work at height. The tanks are demountable and can be transported in standard containers. Our tanks provide reliable, cost-effective solutions that are quick to install with modular design and configurable equipment options, requiring minimal maintenance.

Do you have a project?

Are you working on a digestate storage project? Contact our team for personalised advice!

FAQs - Digestate Storage

Our digestate storage solutions have been recognised for decades in the field of industrial and agricultural biogas production. Here, we answer the most frequently asked questions regarding their capacity, maintenance, and optimal operating conditions.

What is the capacity of digestate storage solutions?

A wide range of standard sizes is available, with capacities from 5 to 10,000 m³.

How can digestate storage solutions be maintained?

Maintenance includes checking equipment such as mixers, pumps, and tank sealing. Regular inspections are recommended every two years to prevent deterioration and ensure reliable long-term operation.

What are the optimal conditions for digestate storage?

Digestate should be stored in watertight tanks designed to minimise odour emissions and manage residual biogas safely. Appropriate ventilation and regular inspections help maintain long-term performance.