BioDigester Proving its Worth

The BioDigester has been busy at the test site in Oakhampton. Towards the end of last year the digester was put through its paces, trialling everything from whole onions, to potatoes and carrots, to mixed general food waste.

Above: Onions after going through the BioDigester


The onion trial started with the whole onions being put through a particle shredder. This output was then dewatered and digested in the BioDigester test unit. The cosh, which is the dry skin that comes off the onions as they come out of storage, was put straight into the digester. The results of this process were successful with the onion weight being reduced by over 90% and the cosh being reduced by around 40%. This was a very promising trial with the end product being an effective fuel for biomass heating.





The second trial carried out was on behalf of a wholesaler to the restaurant industry. Their varied food waste initially went through a shredder before entering the digester. This reduced the volume of their food waste by a massive 80%, exceeding their requirements and expectations.


IMG_0578 b
Above: Vegetables going through the process.

The final BioDigester trial of 2016 was processing waste potatoes, carrots and parsnips. These were being used as low value stock feed but after being put through the BeD200 the resulting product can now be used as digestate biomass. It is stable and storable and has a much higher value as biomass fuel than it did as stock feed for animals.




BioDigester Final Prep
Above: The BioDigester final prep before the LAMMA Show

The BioDigester is currently making its way to the East of England Showground to be exhibited at the LAMMA show. If you would like to find out more about this equipment then come and see us on stand 849, Hall 8.

If you can’t make the show but would like to find out more, give our team a call on 01823 665541

Service & Maintenance

At PRM Waste Systems we are proud of the dedicated product support that we offer. Our team are always happy to answer any questions you may have and will always endeavour to find a solution to your challenge. We offer service and maintenance options for all recycling equipment, not only our own.

Find out more

PRM Projects

PRM Waste Systems are industry experts in engineering innovative and high tech recycling plants. We work very closely with our clients to create bespoke solutions to meet their specific needs. From initial concepts, design and build and through to delivery, installation and after care, we are with you every step of the way.

Find out more