Pegasus
Semi-continuous, high total solids AD reactors
The Pegasus provides a practical solution to help biogas plant operators test feedstocks under continuous, controlled conditions. With two 5L reactors, manual feeding ports, and automatic gas measurement, researchers can choose their experimental configuration including feeding regime, temperature and running a repeat/control digester.
£9500
1-year warranty included, with technical support beyond it
Handle challenging feedstocks
Top up your digester’s feed as often as you like with the manually fed Pegasus. Frequent feeding reduces the shock loading effect from large sudden feeds, and produces more consistent gas production profiles, resembling those of industrial digesters. Run the Pegasus parallel to a full-scale AD plant with the removable effluent bottles to give the digester space to run continuously.
The Pegasus is a great option when automatic feeding isn’t necessary, but you still need a digester to run continuously. It is also specifically engineered to deal with challenging feedstocks with high solids or fibrous content, such as agricultural residues, silage or animal waste.
No gas loss during feeding
The feeding port stretches below the working volume inside the reactor. Therefore, the gas in the headspace can't escape when the feeding cap is opened.
A complete experimental platform
Automatic gas measurement
The included six-cell gas flow meter automatically measures the gas production of each reactor, using water displacement, so you can track the performance of your two reactors throughout your experiment.
Included software. Accessible data.
Your gas-production measurements are automatically logged and stored. Use the included software to extract your data at any point via a USB connection to your laptop.
Key features
5 L reactors
Compare feedstocks and experimental conditions in parallel with 5 L reactors.
Manual feeding ports
Control the timing and frequency of feeding through the removable feeding caps.
High-solids feedstocks
Work with challenging fibrous or high-solids feedstocks, including silage and agricultural residues.
Continuous operation
Add fresh feed and collect excess digestate in removable effluent bottles for long-term studies.
Temperature control
The water bath maintains your chosen temperature from ambient to 85°C.
Reactor mixing
Each reactor has a 20 rpm motor to keep its contents mixed.
Automatic gas measurement and data logging
The included six-cell gas flow meter measures gas production automatically, while the Arduino data logger records measurements throughout your experiment.
Sampling ports
Access reactor contents for sampling during your experiments.
Inside the Pegasus
Feeding Port
Large cap is removed when feeding.
5L Reactor
Large stainless steel reactor provides environment for anaerobic digestion.
1L Effluent Bottle
The easily removable effluent bottle collects the excess digestate to avoid pressure build ups and spillages.
Mixer motor
Each reactor comes with a 20 rpm motor which constantly mixes the inside of the reactors.
Water Bath
Grant water bath reliably controls temperature, from ambient temperature up to 85°C.
Technical Specification
| Feeding type | Semi-continuous |
|---|---|
| Number of reactors | 2 / 3 |
| Reactor volume | 5 L |
| Gas flow meter | 6-cell |
| Effluent bottle | 1 L |
| Temperature control | Ambient – 85°C |
| Mixers | 20 rpm |
| Mixer motor | 24V DC |
|---|---|
| Waterbath | 110/230V |
| Data logger | Arduino, 9V DC |
Frequently asked questions
What warranty and support come with the Pegasus?
The Pegasus comes with a one-year warranty, starting from the date of delivery. It applies when the instrument is installed and used as the manual describes. After the warranty ends, we're still happy to help with questions and troubleshooting: we want your instruments running and collecting data.