Agitator (mixing) technology

The efficient mixing technology of our facilities enables a very flexible use of substrates. The main fermenter is a horizontal plug-flow fermenter with spool agitators. The stirring paddles mix about 70% of the fermenter volume, so that sediment accumulation and floating matter can nearly be ruled out entirely.

This mixing technology guarantees maximum flexibility with the used substrates, especially in times of fluctuating substrate prices. This is of course a key factor with regards to the economic efficiency.

Depending on the substrate composition, high-speed propeller agitators or vertical addle agitators are being used.

Substrate technology

Solid dosing

The use of reliable, top-quality substrate contributions guarantees a maximum utilisation of the facility at very low maintenance and repair costs for the operator.

The insertion technology is determined depending on the choice of substrate. The reservoir tanks aredimensioned sufficiently. All parts that are subjected to damage or wear, or in contact with the product, are made of stainless steel. This ensures a maximum life expectancy of the facility, coupled with very low repair costs.

Pumping technology

Liquid substrates are added to the fermentation process via sufficiently dimensioned pumping technology. The dimension and redundancy of the technology is very important for the supply of fresh, liquid substrates for the plant, as well as for draining of the fermentation substrate and digestat storage.The distributor concepts for liquid substrate are designed so that the pumps can be used redundantly. All distributors are constructed frost-free inside the biogas main fermenter building.Substrate-flexible pump technology

Integrated network of all containers and vessels
High operation- and process security
Integration of a crushing unit into the substrate technology
Automatic supervision and pressure relief in all pipelines

Separation

The Power Solutions biogas facilities are by default equipped with a separator. The separator is integrated in the main fermenter building and therefore protected against the weather; this ensures long service life and minimizes wear-and-tear.

Gas technology-desulphurisation

The gas reservoir is fitted to the fermenterexternally. It serves as interim buffering of biogas before further usage in a CHP, or for the processing of bio-methane and the desulphurisation of biogas. Because of the compact construction, longer gas routes can be eliminated and there won’t be any problems in connection with the condensation in gas pipes.

We use the efficient and approved Sulflex® process for desulphurisation – a biological desulphurisation process in the external gas tank. This highly effective desulphurisation at very low operational costs guarantees maximum working life for CHPs and long oil change intervals.

Heating of the fermenter

There are two systems to choose from to heat the fermenter contents: an external fluid-flow heat exchanger, or an inboard tubular heat exchanger. Both heat exchangers are made completely of stainless steel.

Measure and control technology

The Power Solutions biogas facilities are completely automated. Top-quality sensors as well as sophisticated measure and control technology ensure maximum availability of the facility at very small work and time expenditure for the operator.

All parameters necessary for operation are supervised online. If any disturbances or faults are detected, the operator or the on-call duty service will be informed immediately. Remote maintenance of the facility is possible round the clock. Also, because of constant online supervision, the Power Solutions team ensures higher utilisation and earlier recognition of faults in the facility process.