WELTEC BIOPOWER has rebranded its existing Kumac slurry and digestate treatment process as WELTEC BLUE WATER.

WELTEC BIOPOWER said it is responding to international market requirements for its tried and tested slurry and digestate treatment systems. In recent years, 17 plants have already been put into operation worldwide.

The first WELTEC BLUE WATER plant in Germany has also been in operation since March 2024. In several process steps, the output materials are converted fully automatically into compost, fertilizer, animal bedding, biogas substrate and, depending on the input material, up to approx. 60 percent dischargeable water.

The company said the new name reflects the growing global demand on the one hand and refers to the largest output of water on the other. Plants are currently under construction and at an advanced stage of project development in Europe, Asia and the USA. The first references in Japan and Spain for the easily scalable systems are nearing completion.

The technology is also proving to be of interest for farms in processing regions where there is a high supply of liquid manure or water shortages - such as in Denmark and Spain. In Europe, investments are supported by the European Agricultural Fund for Rural Development (FEADER).

The WELTEC BLUE WATER technology is also suitable for separating nitrogen and returning the water to the biogas process to dilute the source materials. A high proportion of nitrogen-rich input materials such as poultry manure for the production of biogas is possible with the system. Compared to other systems, WELTEC BLUE WATER requires no thermal energy and converts the excreted solids into high-quality fertilizer.

Advantages of WELTEC BLUE WATER at a glance:

Around 99.5 percent of the phosphorus and around 70 percent of the nitrogen are bound in the solid phase

Proven, mature technology with high system availability

Increased transportability and lower application costs due to nutrient concentration

Significantly fewer transports for digestate application

Higher nitrogen concentrations of the input materials in the biogas plant possible due to the cycle without a heat source

Significant reduction in storage volume for slurry and digestate

Modular design, therefore scalable

Fully automatic operation

Wide range of marketing options for the solid phase as fertilizer, bedding or compost

Further information will be available at EnergyDecentral / EuroTier (November 12-15, 2024) at the WELTEC BIOPOWER stand in Hall 25, Stand H21 in Hanover.