Precise process measurement technology for biogas plants
Increase efficiency, protect the environment and maximise yields with MWM tec
The economic efficiency and stability of a modern biogas plant depend largely on precise substrate control. Fluctuations in dry matter content (DM content) jeopardise the delicate biology of the digester and place a strain on the entire plant’s technical systems.
With its MicroSinus measurement system, MWM tec GmbH offers a solution for this demanding measurement task: using the microwave transmission method, you can continuously determine the dry solids (TS) content and density of your media in real time, directly within the process. The measurement does not require optical transparency. Online values supplement the reference analyses and provide a basis for automated substrate control.
Our system can be flexibly installed on pipework and tanks and optimises key stages of your energy production:
Feed-based feeding & substrate management
Measure the dry solids (TS) content of liquid media directly in the feed line. Together with the flow rate, the dry matter load can be determined. For feeding based on organic load, the organic content is also taken into account.
Recirculation and agitator control in the fermenter
Continuous monitoring of density and dry solids (TS) content in the bypass or recirculation loop reveals changes in substrate composition. The values assist in assessing mixing and agitator operation.
Improving efficiency in fermentation residue separation
The system measures the exact solids concentration directly upstream of the separator. This allows the addition of polymers (flocculants) to be metered fully automatically and precisely according to requirements.
Your benefits at a glance
Process challenge
MWM tec (MicroSinus) approach
Economic added value
Fluctuating substrate qualities
Dynamic measurement of the exact dry solids (TS) content in the feed stream
Load-based, biologically optimal feeding rather than rigid volume flows.
Scale & dense media
Wear-free sensor technology with complete core-flow penetration
No measurement errors caused by wall deposits; minimal maintenance required.
High power consumption of the agitators
Continuous density and dry solids monitoring in the recirculation loop
Avoiding overfeeding and optimising agitator running times.
Expensive use of polymers in separation
Real-time solids measurement directly upstream of the separator
Precise, needs-based dosing of additives and maximum separation efficiency.
MicroSinus in the process
Substrate supply – agricultural substratesMicroSinus · Enlarge image ↗Created and edited with AI.Substrate preparation – biogenic substratesMicroSinus · Enlarge image ↗Created and edited with AI.
Multi-frequency technology for substrate and recirculate
The microwave transmission method transmits microwaves through the water-containing medium in the pipe section. The multi-frequency technology ensures stable signal evaluation even with optically opaque substrates. The sensor arrangement, calibration and operating range are tailored to the substrate mix and the installation conditions.
Density and dry solids (TS) measurements form the basis for process evaluation. Viscosity, organic content and gas yield are independent parameters.
Take advantage of our many years of application expertise for your biogas plant. We would be happy to analyse your specific requirements and configure the optimal measurement system to ensure your success.