Digestate dryer

Digestate dryer: Anaerobic Digestion (AD) in a biogas plant is a well proven process in which organic matter breaks down naturally in the absence of oxygen to produce two valuable products – biogas and digestate. Biogas is an extremely useful source of renewable energy, whilst digestate is a highly valuable biofertiliser. Digestate is an organic fertiliser product that is mostly spread to land. The nutrient content of digestate varies dependent on the feedstock mix and the process configuration, but typically […]

Digestate is the material remaining after the anaerobic digestion of a biodegradable feedstock. Anaerobic digestion produces two main products: digestate and biogas.
The primary use of digestate is as a soil conditioner. The digestate is dried on on a Tema Process Fluid Bed Dryer.

28m2 Dryer ! A new range of fluid bed dryers have been developed particularly for the drying of manure, digestate and sludge. Liquid digestate is mixed with dried product and is then transported to the dryer. In a couple of minutes, the humidity is reduced to a residual moisture content of 10%. Energy from a CHP can be used for drying the digestate/sludge/manure.

Commissioning Digestate Dryer
When an anaerobic digester processes organic material, it produces a gas (biogas) plus liquid and solid digested material. Those liquids and solids are called digestate. Raw or whole digestate produced by a biogas system is physically and chemically different from the organic input material used to produce. The digestate is dried on a Tema Process fluid bed dryer. Drying is accomplished by using recycling waste heat from CHP engines. Digestate can be used as a fertilizer.

Tema Process has developed a process for energy efficient drying of digestate from biogas plants and slurry from animal manure. The dried material can be converted either into organic fertilizer or fuel.
Why drying:

To reduce manure weight: reducing storage and transport costs.
Eliminate issues surrounding wet manure / digestate (odours /ammonia / environmental).