Ray-i
Bring your digestion trials into the lab
The Ray-i is built to help operators test operational conditions in the lab, before applying them in a full-scale digester. Compare long-term performance between two independently fed 10 L reactors, with automatic feeding, making it easy to replicate feeding regimes used in full scale biogas plants.
- Continuous operation
- Two 10L reactors
- Automatic Feeding
- Automatic gas measurement
Run parallel to full-scale plant
The Ray-i is the entry level into automatic feeding. Its compact design and simple operation make it ideal for replicating continuous AD processes at the lab scale, especially for long term monitoring, stability assessment or AD modelling.
With two large 10L reactors, its volume produces large quantities of gas, constructing clear biogas production dynamics and making it easy to spot deviations. Learn how best to operate your AD plant by running a Ray-i in parallel, and experimenting in a risk-free lab scale environment.
Fully automatic feeding.
- Reduce daily handling — each feeder typically requires refilling only once per week.
- Replicate the feeding schedule of real AD plants.
- Program feeding intervals and organic loading rate directly from the control system.
- Two independent feeders let you compare different loading strategies simultaneously.
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
Two 10 L reactors
Compare feedstocks, additives or operating conditions in two parallel digesters.
Two independent feeding rates
Set a different automatic feeding rate for each reactor to compare loading strategies.
Temperature control
Programmable heater jackets maintain your chosen reactor temperature, from ambient to 85°C.
Continuous operation
Add feed automatically and collect excess digestate in easy-to-empty effluent bottles for long-term studies.
Mixing and agitation
Dedicated mixer motors mix the reactor contents, while agitators homogenise the incoming feed.
Automatic gas measurement
The included six-cell gas flow meter automatically measures gas production from your reactors.
Feed in, effluent out
As fresh feed enters the reactor, excess digestate flows into the effluent bottle, supporting continuous operation.
Software and PLC included
Configure feeding through the PLC control panel and extract your logged gas-production data using the included software.
Inside the Ray-i
2x 10L Reactors
The robust stainless steel reactors provide the non-reactive environment for anaerobic digestion. Enquire for different reactor volumes.
1L Effluent Bottle
The easily removable effluent bottle collects the excess digestate to avoid pressure build ups and spillages.
Automatic Feeder Syringe
The patented feeder syringe feeds the reactor at your programmed rate. It prevents backflow from the reactor and a full syringe feeds for about a week.
Mixer motor
Each reactor comes with a 20 rpm motor which constantly mixes the inside of the reactors.
Heater Jacket
The custom fit heater jackets maintain a consistent, programmable temperature inside the reactor.
Agitator Motor
To ensure homogenous feed, the agitator mixes the feedstock coming up from the feeding syringe.
Technical Specification
| Feeding type | Automatic |
|---|---|
| Reactors, 1st stage | 2 |
| Reactors, 2nd stage | 0 (extra stage possible) |
| Number of automatic feeders | 2 |
| Reactor volume | 1 / 2 / 5 / 10 / 20 L |
| Gas flow meter | 6-cell |
| Effluent bottle | 1 L |
| Temperature control | Ambient – 85°C |
| Agitators and mixers | Agitators 900 rpm, mixers 20 rpm |
| Mixer motor | 24V DC |
|---|---|
| Heater jacket | 110V AC, 150W |
| PLC control screen | 110V AC |
| Data logger | Arduino, 9V DC |
Optional extras
- 1, 2, 5, 20L reactors available
- Pressure valve for higher pressures inside reactor
- pH probe